Sudden performance drops for no apparent reason.

May 16, 2012 at 20:41:20
Specs: Windows XP, AMD 64 3200+ / 2gigs DDR 400
I've had a sudden performance drop with my PC, no it's not a super computer but it was doing what I needed it to do fine. It's done it twice before and in both instances I format and re-install XP and then my system will go back to doing what I need it to do. I've checked for malware, I've run checkdisk's, and I've tried re-seating my GPU, RAM and cleared CMOS.

Now, because I'm sick of re-installing windows, the problem presents itself after three or four weeks of running fine. When the problem starts, it's out of the blue and it doesn't go away. Playing WoT, I get severe CPU load spikes for no apparent reason and, running on a GTX480, graphic lock ups for 1-5 seconds, again, for no apparent reason when just the day before I could run the game at full settings and 30 FPS consistently over long periods of playing.

If anyone has an idea about what could be causing it... help? I've got a new PC coming in a few weeks... but that's... well... a few weeks from now.

Thanks.


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#1
May 17, 2012 at 04:23:14
You have not included your system specs which may help quite a bit.
Test your Memory with Memtest.
Test your hard drive with mfg's hard drive utility.
Check your internal temperatures with Speedfan or HWMonitor.
Blow dust out of heat sinks, etc. with compressed air can.
Check your voltages in your BIOS, they all need to be withing 5% of nominal specs or your power supply may be going and is not able to meet the demands under load.
Since you have not included the detailed specs of your power supply (not just wattage) we cannot determine if it is only borderline in being able to properly power your system with your graphics card so include these (amperage on all voltages especially your 12Volt Rail(s)).
Run Malwarebytes in safe mode.
Disable excess background programs if they exist.

You have to be a little bit crazy to keep you from going insane.


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#2
May 17, 2012 at 05:10:16
Re-installed WinXP... again. Back to normal, again. I'm sure it'll do it again within the month though...

It's difficult to explain the PSU situation... and since the problem seems to be on the software end, some what pointless as well. I've ran memtest, I have HWM and I've ran Prime95 for 24 HRS with no errors and no temp issues. The hard drive is a new WD 80gb SATAII and it's tip top as far as I can tell.

The CPU is aged but it works, AMD Athlon 64 3200+. I'm fortunate enough to find a MOBO that supported PCI-e x16 so I'm running a GTX 480 as my GPU. Now, I know what you're thinking, "That's what would be eating your PSU up." well not quite.

That's really all there is to it, the temps are fine, the GPU's fine, the PSU(s) are fine and the HDD isn't an IDE so... yeah... stick that in your sports exhaust. :)


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#3
May 17, 2012 at 19:59:36
"Since you have not included the detailed specs of your power supply (not just wattage) we cannot determine if it is only borderline in being able to properly power your system with your graphics card so include these (amperage on all voltages especially your 12Volt Rail(s))."

"Minimum of a 600 Watt power supply. (Minimum recommended power supply with +12 Volt current rating of 42 Amps.)"

"6 pin / 8 pin"

You have to be a little bit crazy to keep you from going insane.


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#4
May 17, 2012 at 23:20:16
Well, seeing the that GPU Mfg. says a 600w is required and I would assume that is for the whole system, I'm covered. I have the card running on it's own separate power supply (400w) and the board and everything else on another one (300w).

Now, The problem is not the PSU(s) because I've re-installed windows and it's gone away. 3 times it's gone on the fritz and re-installing fixes it... for however long.


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