PDA

Click to See Complete Forum and Search --> : my comp's restarting again&again!


ali1
December 25th, 2003, 09:33 PM
Hey all.Well I have a problem here.Whenever I connect to the internet,after a few minutes,my computer restarts.No its not like the Blaster Worm..and I don't even see the normal "Windows Is shutting down" screen when it restarts.It just reboots as if someone would have turned off the switch where all the wires go,which didn't happen.Also,I didn't notice any unusual processes when I pressed ALT+CTRL+Delete.Since it restarts right after a few seconds of my turning on the internet,I don't get time to do research on the virus.Does anyone have any idea of what it is?

whizkid2300
December 25th, 2003, 11:11 PM
Your not really making this easy. But do this. When you start up your Computer Hit

Cntrl+Alt+Del and tell me what you see under processes. There might be a process there running that shouldn't be. If there is shut it down then try to connect. If that let's you on. Then just look around and try to see what the Virus is.

Also try to see if it is just with IE, or with all browsers. I have been having problems with IE lately. (Which I am starting to believe is a piece oh shit.)

But it might be a problem with IE. Try to delete your Temp files. Which is where most Virii hide. Also clear your cache. Then see what happens if none of that works. I don't know what the hell is wrong. Give me a sec. I might think of something.

When was the last time that you ran. A FULL!!!! system scan for a virus. When was the last time. That you Updated your Virus detection Software?

ShagDevil
December 25th, 2003, 11:33 PM
Ali, I did some research for you and basically came to three conclusions based on what I found in the sites I visited. The rebooting could be attributed to one of these 3 issues (and maybe more).

A worm/virus
CPU overheating
Fluctuating/inadequate power supply

I'd recommend updating and running an AV program, followed by a Trojan scan. Next, I'd check to make sure all your fans are running, especially your CPU fan. (to see if your CPU has proper cooling.) I don't know much about fixing power supply issues so I won;t even begin to pretend to know how. :D
This maybe could get you going? I hope this helps.

I know this sounds cheesy but, maybe you could get a friend (with working internet) to download, copy to a CD, and run PC Doctor on your computer? I dunno, I'll give the link and maybe it can help you out in the long run.
PC Doctor (http://www.simplyfixmypc.net/65863asr/download.shtml)

Here's an exerpt from PC Doctor:
Check for viruses first. Some viruses (especially memory-resident viruses) can cause the PC to crash or reboot unexpectedly. If you haven't run your virus checker yet, do so now. Check the power-supply cables and verify that they are attached properly and securely to the motherboard. Use a voltmeter to verify that each output from the power supply is correct. If any output is low (especially the 5-V out-put), replace the power supply. With all power off, check to see that the CPU is cool, that the heatsink/fan assembly is fitted on correctly, and that the CPU itself is inserted properly and completely into its socket. If the CPU overheats, it will stall; taking the entire system with it. If the CPU is seated in a Zero Insertion Force (ZIF) socket, be sure that the socket's tension lever is closed and locked into place. Also be sure that all SIMMs are seated properly in their holders and locked into place. You might try removing each SIMM, cleaning the contacts, and re-installing the SIMMs. Be sure that all expansion boards are seated properly. Any boards that are not secured properly or that are inserted unevenly, can short bus signals and cause spurious reboots. If you've recently installed new expansion hardware, be sure that there are no hardware conflicts between interrupts, DMA channels, or I/O addresses. Inspect the motherboard at every metal standoff and see that no metal traces are being shorted against a standoff or screw. You might want to free the motherboard and see if the crashes or reboots go away. If so, use non-conductive spacers (such as a small piece of manila folder) to insulate the motherboard from each metal standoff. If the system continues to crash or reboot (and all voltages from the power supply are correct), replace the motherboard".

nihil
December 25th, 2003, 11:39 PM
Hmmm,

1. Does this only happen when you attempt an internet connection? What I mean is can you boot your computer and use it for any length of time?

2. How long is it between each re-boot............please time this reasonably accurately.

3. Manually start Dr.Watson and then go into the internet......post the log on here.

Good luck

Tim_axe
December 26th, 2003, 12:12 AM
Since you've written a Tutorial dealing with Firewalls and Virus Scanners...

Building on ShagDevil's suggestion...I'd like to ask what your Computer's Specs are? IE how much RAM and the speed of your CPU. Also, are you using a WinModem? These modems require the CPU to work harder when you connect to the Internet, and on older systems the computer can lockup/restart. If you have a fairly modern system with a decent amount of RAM, this normally isn't an issue though... My old AMD-K6-2-300 with ~64MB RAM and Windows 98 didn't suffer this, to give you an idea of the low specs associated with this. If your ram is around 32MB, I'd be worried. But for this to be considered the reason, is there any new software you went around installing (That would take up these resources)? If so, use Task Manager (Ctrl+Alt+Del) and exit some of these tasks to free up Resources and try to connect.

Good luck. I'm gonna go on a short road trip! Hopefully this is a good platform to start solving your problems.

|The|Specialist
December 26th, 2003, 04:39 AM
Originally posted here (http://www.AntiOnline.com/showthread.php?threadid=252741#post703785) by ali1
Hey all.Well I have a problem here.Whenever I connect to the internet,after a few minutes,my computer restarts.No its not like the Blaster Worm..and I don't even see the normal "Windows Is shutting down" screen when it restarts.

My parents are clueless at times. Nobody ever bothered to patch the box or run & update the AV. And some where within a few seconds to a few hours the box was hit with MSblaster. There was no promt at all. Don't assume it will be like some of the shutdown commands in command promt that countdown or prompt a user. But then agian my parents were hit with welchia on another computer & there was a bit of a count down before the shutdown... but then after that there was no promt or popup at all.

If you still think its not worms DoSing you then do what everyone else has suggested like leaveing your computer on for awhile, stay offline, check your fans, & (ect). Also If I wanted to I could also make scripts that can shutdown your computer, logoff, restart, change the start-page, detect and end processes, and lots of other things. This could easly be inserted into a web page.

leapinglangoor
December 26th, 2003, 05:29 AM
I used to have such probs but not with Internet.
This solution I dont think will help much but try Re-installing IE.
If this dosn't work try a stable and SMALL OS like Win. Me or previous versions.
It reduced my restart rate.

cgkanchi
December 26th, 2003, 06:09 AM
If you're using Windows XP/2000, do you get a "System has recovered from a serious error" dialog box after the comp reboots. If you do, this is because, Windows XP reboots automatically whenever there is a BSOD-like error. Go to Control Panel->Administrative Tools->Event Viewer. Select "System" and check to see if there are any errors (Red Circle With a white cross) and see what's wrong. Otherwise, look at what the others have said.
Cheers,
cgkanchi

recon
December 26th, 2003, 07:01 PM
can i post a good anit visus and sn for it here.

Deaflamb
December 26th, 2003, 07:22 PM
Originally posted here (http://www.AntiOnline.com/showthread.php?threadid=252741#post703983) by recon
can i post a good anit visus and sn for it here.

You can post a link to the website of a good anti-virus, but please don't post the program itself (unless it is freeware) or an illegal serial number (sn?). This site is not about software piracy. There are plenty of free options for software available through out the net to make stealing software somewhat pointless. If you want an example try http://www.linuxiso.org

DeafLamb

recon
December 26th, 2003, 07:46 PM
The avg is a good one.http://www.grisoft.com

ali1
December 26th, 2003, 10:22 PM
Hi.well I get Pc Doctor and it detected a couple of problems but according to that program none of these erros would restart my computer.I think that the time between the restarts isn't always the same.Sometimes its just 5 minutes,while sometimes its an hour.
I had some problems with my registry that doesn't let met uninstall my Norton Anti Virus...and that's why whenever I try installing some new AntiVirus software I find out that I can't install it bcuz it detects an AntiVirus software already.
I'll post the log of DR.Watson later.
I'm using Windows XP pro and my ram's 128 MB

Info Tech Geek
December 26th, 2003, 11:25 PM
We had a similiar situation when someone upgraded a service pack on a test machine we had. We were able to resolve the whole situation by popping in the Windows 2000 CD and doing a restore. We lost no information and 99% of our current settings stayed in tact.

nihil
December 27th, 2003, 12:14 AM
Norton antivirus?


I will say no more

:D

Happy new year

therenegade
December 27th, 2003, 10:39 AM
umm...this'll prolly sound lame..but maybe you have a batch file that tells windows to restart every time it starts..It might not come up in the processes list when you press ctr+alt+del if someone messed with the autoexec.bat file...try to boot up in dos mode and see if you've got a suspicious looking start up program listed there as well..peace

nihil
December 27th, 2003, 02:47 PM
You might try re-installing your NAV. I have encountered several instances of NAV getting damaged/corrupted and producing strange results. If you do a re-install it might let you uninstall properly?

I would also try to do a repair of the Win XP install from the CD?

Normally this kind of problem is to do with overheating, but I would expect that to result in a shut-down not a restart, and the timings to shutdown to be very similar.

I have had something similar with Win Me and solved it by going into startup and cancelling all the power saving options. so you might like to try that, also turn off any screensavers, as a corrupt one of those might explain things?

Please let us know how you get on.

Cheers

bucket
December 27th, 2003, 04:03 PM
Ali,

I'm using Win XP Pro, 640 Meg/RAM & NAV 2003. All is well.
What version of NAV are you using ?

ali1
December 27th, 2003, 11:37 PM
hey all and thanks for your help.I installed AVG and it works fine and I found some viruses.I've deleted them and now my computer works fine.Thanks for all your help.Cheers!

foxyloxley
December 28th, 2003, 01:20 AM
Just before everyone goes off to another thread ? I am starting with similar probs to ali 1.
have tried to get PC Doc, but page comes up as Formail, and underneath it headers as "Badness" ?? I run W2K Pro, sp4 + all patches. It doesn't re-boot, it just locks up, and I have to reset with a manual re-boot, in case of over temp I have the side off, and the exhaust fan has been repositioned to blow into the box, I have PC Alert ? running, showing that CPU is 70*C ? CPU = AMD 1.3 Gig. It locks up online, when gaming and has began to lock up when I leave the unit to 'rest' any advice gladly taken,

edit : I run Norton NetSec 2004
edit 2 : I have followed the idea's from the thread. Not to sure how to find threads in forum, hence put it here ?

nihil
December 28th, 2003, 01:53 AM
Hi Foxy............if that IS centigrade (celcius) then you are running way too hot IMHO, unless you are doing some serious overclocking?

Try going into BIOS and checking if you have a cutoff temperature value set? what is it? and is it F or C?

You say a 1.3 AMD..............is that a Duron?...........It should get up to about 32c when you are killing aliens :D I generally work on about 10-12c above ambient temperature

I would check that all fans are OK.............if it is Farenheit, then you are OK as 70 is only about 22c?

I would also look at drivers for your video card ;)

How much RAM?

You might have a memory leak or deadly embrace? You might like to try the diagnostics of a memory manager tool to see what RAM is actually available at the time of lock-up?

when did you last defragment your HDD?

Locking up when at rest is something I have had with an IBM PIII/533 I have just upgraded....that was the screensaver/power management settings that I mentioned to Ali1.Win98se OS though :(

Locking up in online gaming could be resource? (RAM) Some games like a fancy video card, others a lot of RAM.

Follow the normal anti virus, anti spyware routines to eliminate that possibility of course.

Good Luck

Just a few more thoughts?

foxyloxley
December 29th, 2003, 01:23 AM
nihil, thanx for the input. sad to say it's Celcius !!! 512 MB DDR ram, recently the M$ site downloaded new drivers ??? Nvidia FX 5200, Computer just re-built, due to me ballsing it up ??? new MoBo, CPU =1.3 AMD Athlon, new HDD, up to 40Gig from 20Gig, and have not loaded any of the old rubbish, also put in EXTRA fans, from QuietPC.co.uk and a new PSU. And I don't use screen savers, but the power management could do with a check ?
Apologies to Ali 1, for the thread Hi-jack.

nihil
December 29th, 2003, 01:55 AM
Foxy,

Sorry mate that is way too hot for a 1.3 Athlon IMHO. Are you sure that the CPU fan is spinning properly and its power cable isn't in the way of the fan blades?

Is the heatsink an AMD approved one?

Is the fan properly attached to the heatsink?....no wobble?

Is the heatsink properly attached to the processor?.........no white goo oozing out at the base?

If the processor fan is ok I would look at the heatsink to processor interface and make sure that I had some silver thermal compound in there.

Hell I run a couple of Athlon 1900+, which are similar technology and they don't go above 42c

What is the cut-off temp in you BIOS? it could be that it is being triggered now that you are into high temps? I think Athlons are between 80 and 90c in their usual tolerance.

Was it a new heatsink and fan, or did you "liberate it"......I have seen stuff fried with heatsinks "that looked big enough". Size is NOT equal to thermal efficiency?

Cheers

Und3ertak3r
December 29th, 2003, 10:34 PM
umm...this'll prolly sound lame..but maybe you have a batch file that tells windows to restart every time it starts..It might not come up in the processes list when you press ctr+alt+del if someone messed with the autoexec.bat file...try to boot up in dos mode and see if you've got a suspicious looking start up program listed there as well..peace

A bit hard to do if the file system is NTFS.. well that is if you don't have NTFS2DOS or similar.

hey all and thanks for your help.I installed AVG and it works fine and I found some viruses.I've deleted them and now my computer works fine.Thanks for all your help.Cheers!

Ok.. Very good Ali.. and what were they.. It certainly will help many noobs out there if you could enlighten us as to the names of the virii.. it would be helpful

Now nihil,

what HSF are you running.. my AMD 2000XP with std AMD fan and Heasink as well as a couple of extra case fans and hdd cooling fans.. the CPU temp currently 52deg Room temp is 23deg (7am here) it has been upto 66 deg (@room temp 42deg) .. have considered the TT Volcano 9.. oh in winter the cpu idles at 42deg but the max room temps are in the low 20's.. (and no.. I dont work in here when the room temps are in the 40's.. those are the unattended room temps.. when occupied.. the temp is 22-28)

My Point.. to add to what you have commented.. regardless of HSF etc.. if the hot air in the case isn't being evacuated.. or the air flow to/from the cpu hs is restricetd.. and/or the ambient air temp is high.. it is harder to cool the cpu..
Oh another question.. when the cpu was installed (assuming 2nd hand) was fresh Heat transfer paste used? have seen guy's fry their AMD cpu's by installing the Heatsink incorrectly..
HAve had PSU's cause heating problems.. new ones at that.. seems supply noise is the cause.. never spent the time working out the full reason why.. just know the engineer said swap, I did.. and prob fixed..


Cheer

nihil
December 30th, 2003, 10:19 AM
Hi Und3ertak3r,

Happy new year mate!

I am not saying that these are "the best" products, but they work for me...........remember that I am in England, where a room (ambient) temperature of 30c (85f) would be unusual, particularly as I am about 200 yards (185M) from the North Sea.......it does get a bit hotter inland, but no more than 40c (105f)?

I have been using the CoolerMaster Alps HHC-L61 Silent Heat Pipe outfit. I like the concept of the heat pipe with its evaporation and condensation. It runs at 3000rpm and shifts 14.13cfm of air. The heatsink is "pure" copper which is much more thermally efficient than aluminium. Any of you guys noticed that a lot of cooking pans are made of aluminium, and the expensive ones have copper bottoms?

I am about to build an XP3000+ box and have a CoolerMaster Dream HAC-V81 for it. This is a more traditional design but has 2500-4800 variable fan speeds and will shift 31.4-64.8cfm (yeah, yeah, I know its a PC not a bloody wind tunnel I am building :D )

http://www.coolermaster.com.hk

I always take the pack of white thermal "gunk" and throw it straight in the bin! You need SILVER!.....Arctic Silver or Antec Reference are the ones I use (haven't got hold of any of that carbon stuff yet). Silver thermal compound is about 20x (2,000%) more efficient than the white stuff.

As you and I have both mentioned, you need to get the warm air out of the case......particularly from around the hard drives! I have found that for £5 I can get "exhaust fans". These are flat devices that look a bit like the engine of a hovercraft. They take up one PCI/ISA slot in the case, but if you have a full size tower you can stick it down the bottom, below the MoBo, so you don't lose an active slot :) .......OK you physicists I know that hot air rises...........these are "brute force and ignorance" devices, so it doesn't matter.

Other thoughts whilst I am ranting on:

Cable ties are no more than about 5c each........tidy the guts up!......keep wires out of the way of fans and the airflow.

You can get circular cables to replace the flat ones.....better airflow.

I will not go into water cooled peltiers, as I know that small children, people of a sensitive disposition, and cuddly Koala Bears read this forum :p

Happy New Year to you all

Johnno

foxyloxley
December 30th, 2003, 11:59 PM
Hi guys
Sorry for the delay, have field stripped the beasty to bits,
to recap: all parts added were new, CPU 1.3 Duron (not athlon) PSU, added an extra fan to pull air out. at moment side is OFF, extra fan at side to blow in !!! MoBo is new, even the goo is new. However, I found that I put the old (although it is only a couple of months old) CPU cooler back ???? Old CPU 800 MHz new 1.3 Gig :o have ordered new cooler, unfortunately ?? I spotted a deal to buy an AMD 2.4 Gig CPU WITH new cooler, cooler on it's own = £5 ($7)spent £70 ($100) instead, if wife reads this I'm going to get a roasting ?? Thanx 2 nihil for the assist.
will sign off now as CPU really does need a sleep, have been running at this temp for a month !!! and the lock ups started about a week ago ?
as for the other options in your mails, have fitted round cables, and cable ties, and am getting some "arctic silver" too.

:D Edit: PS. I know where there is a 1.3 AMD Duron CPU going cheap. :D

nihil
December 31st, 2003, 12:20 AM
Hi,

You put an 800Mhz heatsink & fan on a 1.3GHz Duron :eek:

A mate of mine recently fried two 1.3 Durons and a MoBo doing exactly the same thing? :(

Durons need a fair bit of cooling from what I have seen of the heatsing & fan specs, I presume it has something to do with their architecture?

Cheers

gore
December 31st, 2003, 12:34 AM
Originally posted here (http://www.AntiOnline.com/showthread.php?threadid=252741#post705096) by nihil
Hi,

You put an 800Mhz heatsink & fan on a 1.3GHz Duron :eek:

A mate of mine recently fried two 1.3 Durons and a MoBo doing exactly the same thing? :(

Durons need a fair bit of cooling from what I have seen of the heatsing & fan specs, I presume it has something to do with their architecture?

Cheers

From what I understand, AMD and Celeron processors all run a bit hot. When you think about it though it isn't hard to see. If they give you a good fast processor with not as much cache, but for a cheaper price...Well, to me it seems that they just overclock a regular chip and sell it as another brand.

Intel did this, to my knowledge, in the 80s with the ....Was it 3 or 486DX ? I'm trying to remember. We learned about it in my OSs class.

While we are on the topic of processors and cooling, does anyone know what the COOLEST running processor is? I'v heard Pentium 2s run fairly hot but I have no experiance with one. But what would be the processor that runs the coolest without extra fans and so on?

nihil
December 31st, 2003, 01:05 AM
Hi Gore,

I think that it was the 386......the PCs had a "turbo button", otherwise they ran like a 286?

I would think that the coolest processor would be the 486DX. I have seen a lot of them that have nothing more than a small aluminium heatsink, and rely on the case fan.

I have 3 Pentium IIs and they do run hot...............the heatsink & fan systems are pretty bulky as well. I have fitted them all with exhaust fans as described earlier.

I have found that PI's are pretty cool and PIIIs by comparison to the PII

I would say the coolest processors are probably the PIVs provided that you use a recommended heatsink & fan combination. The advantage of a PIV is that it should cut out if it overheats, rather than frying like an AMD ;)

Don't get me wrong, I like AMDs, they do the job but you do need to be a bit more careful about your case geometry and cooling.......but you should do that anyway :)

Cheers

EDIT: Just had a thought, with the Intel 486 you could get a DX or an SX. The difference was that the DX had an on-chip math co-processor. If you examine the SX you find that it HAD a math co-processor, and that it has been physically disabled. In other words Intel made DXs and vandalised some of them to sell as the cheaper SX

ali1
January 1st, 2004, 08:42 AM
well,Hi every one.Can't tell you what crap I've been through.Because there was some really bad problem with the BIOs of my computer.After I posted my last reply here,and turned off the computer,as soon as the Windows were about to get loaded,the computer would restart again.I got crazy trying to solve it but couldn't.So at last I had to take it to a shop where that guy made partitions of the hard disk.And I lost all the stuff I've been collecting from the internet from the last 2 years!!I lost quite much the data of my website too.Luckily I had the backup of my website's data on the internet.However finally now my computer's back and working.But still I feel sorry that I lost all my music,games,and software etc.
Hope no one goes through such a problem again!!

gore
January 1st, 2004, 06:47 PM
Originally posted here (http://www.AntiOnline.com/showthread.php?threadid=252741#post705476) by ali1
well,Hi every one.Can't tell you what crap I've been through.Because there was some really bad problem with the BIOs of my computer.After I posted my last reply here,and turned off the computer,as soon as the Windows were about to get loaded,the computer would restart again.I got crazy trying to solve it but couldn't.So at last I had to take it to a shop where that guy made partitions of the hard disk.And I lost all the stuff I've been collecting from the internet from the last 2 years!!I lost quite much the data of my website too.Luckily I had the backup of my website's data on the internet.However finally now my computer's back and working.But still I feel sorry that I lost all my music,games,and software etc.
Hope no one goes through such a problem again!!

The BIOS was causing this? It's a bit odd having a problem in there. I'v been using computer...Well, not long, got my first one 4 years ago. But I have never seen a problem with BIOS. Then again the only time I was ever in it was messing around once to learn about it, and again to disable the onboard Video and Ethernet devices of a new PC I bought a few months ago. "Shared RAM for video" is a curse to me.

Did the tech that fixed it at least help you to understand how it may have happened to sit doesn't havea chance to repeat it's self?

ali1
January 1st, 2004, 11:01 PM
He told me that I had bad sectors on my hard disk.And its reason was that my phone line would remain inside my modem even after I had disconnected my internet.Its true,my phone line remains in the modem 24/7.And he told me that there had been some sudden jolt to the BIOs that moved them.And that's why Windows XP wouldn't get loaded.And at first he told me Windows XP wouldn't work and he installed Windows 98.And asked me to visit his shop to take my system back.He also told me to get my BIOs right from a bigger shop if I wanna run Windows XP.When I visited it he told me that somehow the BIOs got OK again suddenly and then he told me Windows XP are now installed.After that I got my computer back...that's all that happened.If you think he's a fruit cake,tell me cuz I love kicking butts of Techs lol!:D

nihil
January 1st, 2004, 11:23 PM
::hide-beh

"Close all watertight doors...............flood to 650...........full left rudder.........rig for silent running"


There are three BIOSes on a depth charge run?



Gore old chap, what is it that you seem to see that I do not :D

ali1
January 1st, 2004, 11:35 PM
huh?lol

Tim_axe
January 2nd, 2004, 12:03 AM
ali1 - It's great that you got your computer up and working again.

However, when you have badsectors on your HDD they are known to get worse over time. You should from now be extra careful and make more backups of important data. Otherwise you might lose stuff again when you try to build up all of your files again. I myself had 2 HDD failures in a row not to long ago, and I lost a lot of my personal stuff. Luckily I had some backups, and a USB 2.0 HDD that I saved lots of stuff to after the first failure, but I still lost a lot of time and productivity dealing with those issues.

His explanation is valid (minus the HDD spinning from the jolt). Power-surges can do damage if you don't have a power-surge/spike protector for your AC outlets and Telephone lines. Usually this can be a damaged modem or powersupply, but I don't know how far the damage would spread (ie to the BIOS or anything). The badsectors on your HDD are probably not related to the original problems though. Those usually develop on their own. They can also happen if your Computer's PowerSupply unit devlivers an unsteady 12volt voltage to the HDD, but many HDDs can deal with some fluctuation. His installing Windows 98 was probably good luck. Usually if you can install one OS, you can install another. Probably his first attempt had problems, but when he reset and decided to try Windows 98 something inside of the computer fixed itself and Windows 98 worked, where if he tried it the first time it wouldn't have. Still, he had a good explanation so that most people would feel they understand, and that is what counts in tech repair/service.

nihil
January 2nd, 2004, 12:39 AM
I will make one observation only:

NT/2K/XP = NTFS

9x = FAT


I have no further comments

Meow

JohnHACK
January 2nd, 2004, 04:21 AM
I've this problem too, even more during i'm installing game and during playing com game. it 's concerns with my sound card, after I update my sound card driver, then there is no more problem.

foxyloxley
January 12th, 2004, 01:28 AM
I have just fixed my system, and would like to apologise to Ali1 for the thread hi-jack, and to thank nihil for the input, since I fitted the new 2.4 g AMD cpu, plus a correctly sized cooler ?? all is well. However, I cannot get the system to recognise the cpu as 2.4 ? clock speed is at 100M, and I thought that if cpu clock @100M, then if you set the core / bus ratio to, say, 14, that the chip would be a 1.4. am having a problem getting the system to see anything but a 1.5G cpu at the mo. it is running at 50*C. Any help would be most appreciated !!!!!!!!
ps. this is NOT th efirst cpu at 2.4 to be tried ?? have already fried one ? and at £70 each, it is not an expense I can accomodate.

darkes
January 12th, 2004, 06:52 AM
A bit off topic - P4 chips are more expensive than their AMD equivalents, but P4 chips will not fry themselves. The P4 chip itself has a basic thermal monitor, so regardless of what your motherboard/cooling fan is doing, the P4 chip itself will shutdown if it gets too hot.

I've actually seen this happen, as the motherboard was too slow to respond to a cooling fan failure. Nothing wrong with 50C - well within limits for AMD & P4's.

nihil
January 12th, 2004, 10:12 AM
Ali1............run scandisk with a full surface scan and the advanced settings checked so it produces a log. That should tell you if you really have any damaged sectors.
If you do, you really ought to think about a new HDD.

On reflection I think that the "sudden jolt" that your technician was referring to was a power surge. If the modem and phone line are involved then it would be an EMP (electro magnetic pulse) this would most probably be caused by lightning......had you had a thunderstorm? I find this very unusual though as I have only seen this fry the modem.....I would have expected the MoBo to be next, not the HDD?

You should also get a surge protector for your power supply.

Darkes.................absolutely correct a P4 is difficult to fry, but a lot more expensive.

Foxy, your clock speed is wrong!!! It should be 133Mhz. You need to find the true speed of your processor which I think is about 2Ghz (BE CAREFUL you must get this right). The TRUE processor speed divided by the clock speed gives you the ratio. At 100MHz you have it set up as a Duron :(

EDIT: Remember that Durons are rated at their true clockspeed whereas Athlons are at "performance rating" which is much higher than the actual speed of the chip. You must use the actual or true speed to calculate the multiplier ratio.

OK I have just checked AMDs site, the XP2400+ runs at 2.0GHz and should have a multiplier of 15 and will go up to 85c

You need to be sure that the MoBo will support 133/266. Some are default set to 100/200 in case you put a Duron in them ;)


Cheers

ali1
January 12th, 2004, 07:07 PM
Nihil,there isn't Scan Disk in Windows XP Pro.
And the technician didn't tell me my hard disk got bad sectors because of the jolt.it were the BIOs that got affected by the jolt.He told me that because my phone line's always connected to the computer,I can get a virus.However I don't think it makes sense,I mean,when my computer's off,how could I get a virus?Also,when I'm not connected to the internet,how could I get a virus that's being spread through the internet?

DjM
January 12th, 2004, 07:18 PM
I mean,when my computer's off,how could I get a virus?

You can't, plain an simple.

when I'm not connected to the internet,how could I get a virus that's being spread through the internet?

You could have something else running in backgound that is connected to the internet, therefore, you could be at risk, however if your computer is off, refer to my first answer. :p

Cheers:

Cybr1d
January 12th, 2004, 07:25 PM
Ali, I always thought u were the virus expert. Anyways, Run a disk defragmenter, and then a scandisk. Go over here to get some stuff that could help you:

http://download.com.com/3120-20-0.html?qt=defragmenter&tg=dl-2001

The computer repairman you're visiting might be screwing with your pockets, seeing that you dont know much about computers. A rule of thumb to remember is: Always know whats wrong with your system before you send it to be repaired, or get ready to pay big bucks. Same goes for cars :p. I didnt read all the posts on this thread because i dont have the time rite now, but another solution is backing up all your stuff, and getting a new hard drive if you can afford it. It will prolly cost you less than what the tech is going to charge you. Just because you'r phone line is always hooked up to the wall, the chances of something happening to your comp when its shut off, is very slim. Take a look back at the tutorials you wrote and you'll find out that viruses do not attack your comp while its off.

|The|Specialist
January 12th, 2004, 11:40 PM
Originally posted here (http://www.AntiOnline.com/showthread.php?threadid=252741#post709660) by ali1
how could I get a virus that's being spread through the internet?

You mean besides P2P, IRC, E-Mail, Boards, IM clients, sites with nasty scripting, & (ect)? Take a look around you. There have been plenty of worms that spread with exploits. What makes them so successfull is users who think that if they stay away from attachments and URLs then they'll be safe from almost anything so its ok for them to skip patches & updates... or enable some really crapy configurations. :p LOL

||BUFFER|| + egg|| = command execution.

nihil
January 13th, 2004, 12:35 AM
Spot on |The|Specialist ,

Also remember that a lot of stuff is network aware, so it only needs one external connection to infect the lot.

I predict a return to the older media viruses given that more and more people have writable/re-writable CD/DVD drives these days, and don't realise that all a CD is is an 800Mb floppy :eek:

Of course, because nobody ever pirates anything, I am probably wrong :)

When you pack up, unplug machine from mains and telephone line....both cables make excellent lightning conductors...............and even the power supply guys can get you through the 60amp company fuse if they try hard enough :)

There is a "diskcheck" function in XP................it will want you to re-boot..........it takes a while to run even on an Athlon XP1900+ with a Gig of RAM. "Scandisk" betrays my DOS/3.x/9.x heritage?

Good luck

ali1
January 13th, 2004, 02:53 PM
Hello all.
I think I'm being terribly misunderstood.I didn't mean to ASK you how could I get a virus when my computer's off.I actually told you what I thought when that guy told me I can get a virus through my phone line even if I'm not connected to the internet.As for the applications that could connect to the internet,well,I don't think so.Because I think that if even one application connects to the internet,I would be connected to the internet and could surf the web and chat,etc.Other than that,I would notice a change in the balance of my account at my ISP's website.If you mean that the virus could connect to the internet using its own server or something like that,well,I'm not sure I can believe it.Because I live in a really remote town of Pakistan where the total number os ISPs that work here are 3,or 4.Maximum 5.And if I try connecting using any ISP other than these 5,I don't get connected.I hope you understand only what I mean this time!!!!

nihil
January 13th, 2004, 04:24 PM
OK Ali1, I think that I understand now :)

1. If your phone line is connected to your modem, and your PC is powered up............I mean booted up NOT just "connected to the electricity supply". It is possible that a virus or other malware that is running on your machine could connect to the internet and spread itself.

2. If it is a RAT (remote access trojan) then the bad guy could upload more bad stuff to your machine, or do most whatever he wants?
Remember that there is stuff out there that will silence the modem, so you won't hear it, so unless you have an external modem and notice the flashing lights, you will not be aware.
OK, your logs and stuff might tell you what has happened, but that is only AFTER it has happened, and they won't tell you WHAT happened?

3. This is how a lot of "dialers" work?......sit there monitoring activity, if you have been inactive for a while they call a very expensive connection, and you see it next month when you get the phone bill/ISP bill. So you had better believe it ;)

4. I am not an expert in this area, but I would have thought that there is sufficient information in your browser and mailing system to identify and connect to your ISP? The only way to avoid this would be to recreate the link for each session and delete it afterwards, and I am sure that you do not do that :D

5. Just have a look in your browser and mail system setup utilities, and I think that you will see what I mean............you have told them about your ISP?.............and they don't need an ISP........if your telephone is connected they can talk "direct" so to speak?

You need a good firewall that requires you to verify OUTGOING connections.

I agree that you cannot be attacked down your phone line from the outside, if you are not connected to the net..............it is the OUTWARDS connections you need to worry about.

Cheers