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Slow PC, 100% cpu, new install

This is a discussion on Slow PC, 100% cpu, new install within the Windows XP Support forums, part of the Tech Support Forum category. Hey, i recently installed a new graphics card (ati hd 6450) in a secondary computer but it started slowing to


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Old 03-09-2012, 05:05 PM   #1
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Hey, i recently installed a new graphics card (ati hd 6450) in a secondary computer but it started slowing to a crawl after a while, so I ended up re-installing windows but its still going slow.

Specs:

Windows XP SP3
AMD Athlon 3000+ 1.79ghz
ATI HD 6450
Coolermaster Extreme 550w PSU
80gb western digital sata

After reinstalling it started off running good as new but then suddenly it slowed to an absolute crawl.
CPU usage remains at a constant 100% though the processes that account for this change every few seconds.

The only programs installed are zonealarm free, steam and malwarebytes

Any ideas?

Thanks,
yoshi1476

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Old 03-09-2012, 06:02 PM   #2
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Uninstall Zone Alarm and see what happens. Then download Process Explorer and it should tell you what process is taking up the most CPU.

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Old 03-09-2012, 09:34 PM   #3
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Uninstalled ZoneAlarm and used Process Explorer

System Interrupts are taking up 85-90% cpu, caused by drivers/hardware conflicts i assume

I just tried installing the latest video, sound and network drivers but no change
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Old 03-10-2012, 01:08 AM   #4
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Can you post a screen shot of Process Explorer during the slow downs?
You can also run Driver Verifier to test your drivers
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Old 03-10-2012, 04:11 AM   #5
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I attached a screen shot of both Process Explorer and Verifier

A message popped up the first time i ran verifier saying something like "only 79% had been pooled/paged?. Increase physical system memory"
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Old 03-10-2012, 01:54 PM   #6
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You are correct that Hardware Interrupts are causing the CPU usage. How much RAM do you currently have installed on your computer? What is the make and model # and wattage of your Power Supply Unit? Set the paging file to System Managed. Since you just installed a new Video card, update the driver from the manufacturers support/download drivers site.
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Old 03-10-2012, 04:00 PM   #7
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Video card was just updated to latest drivers (7th march 2012)
There is 1.5GB ram installed and the PSU is a Coolermaster Extreme 550w

PSU: eXtreme Power Plus 550W - Cooler Master - Leading Provider of Computer Case | Cooler | Power Supply
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Old 03-10-2012, 04:59 PM   #8
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Was the computer running better with the older video driver? If so, roll the driver back.
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Old 03-10-2012, 05:22 PM   #9
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There was no difference with the older driver as far as i can tell.
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Old 03-10-2012, 05:52 PM   #10
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Just did a little test. Removing the graphics card makes the computer run way faster.
I used driver sweeper to get rid of all the old drivers and then put the card back in and its going slow again, ill try installing some older drivers to see if it helps.
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Old 03-10-2012, 05:59 PM   #11
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It might be a bad card.
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Old 09-04-2012, 10:56 AM   #12
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Hi,i have the same problem as you.Any solution on that problem?
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Old 09-04-2012, 12:33 PM   #13
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Quote:
It might be a bad card.
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Old 09-04-2012, 12:36 PM   #14
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What do you mean by bad card?
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Old 09-04-2012, 12:39 PM   #15
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By Bad Card I mean a Video Card. The OP who started the thread had installed a new computer and was having problems with their video card. If you do not have the same symptoms, then start your own thread.

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