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  Tom's Hardware Forums » CPU & Components » CPUs » Strange CPU problem
 

Strange CPU problem

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 Thread : Strange CPU problem
 
bryceray1121
Profile: newbie
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n°1741516
08-26-2007 at 01:53:59 AM

A few weeks back my motherboard and psu died, which was the start of the problems. I was not sure what the problem was at the time so i took it into a computer repair shop. They replaced the motherboard and psu.

Here is my question...
Since this time my amd 64x2 is not appearing as it used to. In the windows task manager > performance section it is only showing one box under the cpu usage history section. And when i am running a program the cpu is almost always near 100% usuge, where i the past it was considerably lower split between the cores. Also, i am no longer able to assign processes to a specific core.

Any suggestions?
MOBO: WinFast NF4K8MC Empowered by FOXCONN
CPU: AMD Athon 64x2 3800+

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itotallybelieveyou
"Hmmmmmm"
Profile: Honorary Poster
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n°1741517
08-26-2007 at 02:01:54 AM

are you running cpu always intensive programs? Cuz if you are this isn't exactly the most powerful cpu out there. Does only happen when you run programs? Or does it idle with 100% cuz if it does it's a virus called winlogon.exe you'll have to reinstall windows or find anti virus program which i didn't find to fix it. The one box under usage idk wa's going on

Message quoted 1 times
Message edited by itotallybelieveyou on 08-26-2007 at 02:03:10 AM
bryceray1121
Profile: newbie
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n°1741519
08-26-2007 at 02:10:19 AM

Not always at 100%
I know its not the best, but the usage has increased considerably b/c it is either only using one core or showing the usage of the two cores combined or something weird... i dont know.

techgeek
Runs with scissors
Profile: addict
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n°1741524
08-26-2007 at 02:33:16 AM

You say that the motherboard and the PSU were replaced, was the motherboard replaced by exactly the same one? And if not, was Windows re-installed? Another thing to check is the BIOS, maybe dual core support is shut off. Since this behavior started immediately after the hardware change it's really got to be either improperly set up Windows, or BIOS.


---------------
Don't go away mad, just go away!
ParadoxMind
Profile: stranger
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n°1741525
08-26-2007 at 02:34:55 AM

that's is a easy fix. Just goto the Windows Task Manager. select View/CPU history/and select the One Graph Per CPU. And then your problem will be solved.

Joe_The_Dragon
Profile: addict
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n°1741528
08-26-2007 at 03:34:33 AM

the bios on your new MB may need to be updated for it to be able to use dual core CPUS.

bryceray1121
Profile: newbie
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n°1741535
08-26-2007 at 03:57:22 AM

ParadoxMind-

 

It is already selected.

 

I believe they did a windows repair but i dont think windows was reinstalled as far as i know. And it was not replaced with the same board > used to be: Motherboard Name: A8AE-LE, HP/Compaq motherboard name: AmberineM-GL6E
How do i check BIOS?


Message edited by bryceray1121 on 08-26-2007 at 04:00:55 AM
intelamduser
Profile: member
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n°1741538
08-26-2007 at 04:10:37 AM

Why not take it back to the repair shop and ask them?

bryceray1121
Profile: newbie
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n°1741624
08-26-2007 at 04:34:30 PM

If it comes to that i will, i am just tired of dealing with them. I also can't afford to lose my computer for a week again.

Falken699
Profile: enthusiast
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n°1741640
08-26-2007 at 05:48:29 PM

Go to the website and read up on BIOS stuff, it should be really clear. That is what recognizes cores etc. If, after the BIOS update you still have problems, format and re-install windows, and put Avast antivirus on it (free) from now on. Sometimes windows gets buggered if components are switched and aren't the exact same (motherboard).


---------------
djcoolmasterx - "Ofcourse there is nothing that you are doing that will use that kind of power, beacuse you don't have that kind of powr to do things with."
bryceray1121
Profile: newbie
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n°1742554
08-29-2007 at 10:53:22 PM

I accessesed the bios section of my motherboard but could not find anything that had to do with setting the cores.
Any other suggestions besides a windows reinstall (and does this requrie me to reformat my hardrive)?

mousemonkey
Monkey wants to steal peaches
Profile: Faithful Poster
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n°1742557
08-29-2007 at 11:12:36 PM

itotallybelieveyou wrote :

are you running cpu always intensive programs? Cuz if you are this isn't exactly the most powerful cpu out there. Does only happen when you run programs? Or does it idle with 100% cuz if it does it's a virus called winlogon.exe you'll have to reinstall windows or find anti virus program which i didn't find to fix it. The one box under usage idk wa's going on


Whilst there is a virus/trojan named winlogon.exe there is also the legitimate winlogon.exe do not confuse the two.

bryceray1121
Profile: newbie
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n°1745125
09-09-2007 at 06:14:26 PM

Well i completely reformatted my hard drive as well as reinstalled windows. This failed to fix my cpu problem, it is still only showing one core in the windows task manager and appears to be maxing out much faster than it used to ... b/c only one core appears to be active.

mousemonkey
Monkey wants to steal peaches
Profile: Faithful Poster
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n°1745129
09-09-2007 at 06:21:02 PM

It looks like you may be facing a worst case scenario, I.E your CPU was damaged when the last motherboard and PSU went phut. :(


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jitpublisher
Profile: Faithful Poster
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n°1745138
09-09-2007 at 06:56:31 PM

I believe that on that board you need a BIOS dated 5/19/2005 or later to correctly identify your X2 processor. Check your BIOS revision date, could be you just need to update it.

nukemaster
Nuke it, Nuke it good!
Profile: Eternal Poster
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n°1745147
09-09-2007 at 07:12:43 PM

bryceray1121 wrote :

A few weeks back my motherboard and psu died, which was the start of the problems. I was not sure what the problem was at the time so i took it into a computer repair shop. They replaced the motherboard and psu.

 

Here is my question...
Since this time my amd 64x2 is not appearing as it used to. In the windows task manager > performance section it is only showing one box under the cpu usage history section. And when i am running a program the cpu is almost always near 100% usuge, where i the past it was considerably lower split between the cores. Also, i am no longer able to assign processes to a specific core.

 

Any suggestions?
MOBO: WinFast NF4K8MC Empowered by FOXCONN
CPU: AMD Athon 64x2 3800+

 

Did nforce boards not need a bios update for dual core. and from the looks of things i can not even find that board on either leadtek's or foxconn's site. Looks like they gave you a board that just will not run dual core(so you have 1 full cpu disabled). I could be wrong but I can find NO reference to anyone running that board with ANY x2 cpu in it. Go back to where you got it fixed and tell them you want a board that supports dual or a bios to make it work....

 

Just some things to look at...what does the bios call the cpu...what does windows call it? check CPU-Z as well

 

If you have the time and a spare drive you can try to re-install, but it looks like a board issue to me


Message edited by nukemaster on 09-09-2007 at 07:13:26 PM

---------------
http://img145.imageshack.us/img145/4269/inukexz9.png
http://tinyurl.com/26uxxb - Core2 Temp Guide? http://tinyurl.com/cj3pw - VGA power use?
http://tinyurl.com/5v55wk - Core2 Memory performance? http://tinyurl.com/6pmbke - SLI/Xfire?