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Low voltage making computer freeze?

post #1 of 6
Thread Starter 
So I just bought a 7800gtx, it was the Dell version but I got a good deal on it, or so I thought. I'm still not sure if my problem is related to the graphics card or something caused by it but before the new card everything was perfect, I never had my computer freeze.

What happens: I'm playing a game, usually World of Warcraft, all of a sudden it just completely locks up, sometimes with a little bit of sound looping, that's usually a good sign because sometimes it unfreezes when I have sound. Other times the screen just goes black or sometimes black with some squares and bars of color. It's hardlocked and I have to press reset to get my computer back.

Another interesting thing is with one of the drivers the game would load but as soon as I moved my mouse it would lock. I think when that red led powers up in the mouse that power draw made volts drop somewhere else.

Here's what I've tried.
Removing my overclock, going back to default speeds
Different drivers
Changing memory voltage (turning them up)
Removing the sound card
turning off the light that goes into the same power strip
Changing where the gc gets power, so it's not splitting it with fans or drives

Here's what I think might be the problem now, low cpu voltage. I think my board regulates it kind of low, Ai booster says around 1.31 and dropping to 1.26 depending on what I'm doing. I looked up voltage for the Pentium D 820 and the list says from 1.25 to 1.40 I figured my board wasn't ready to compensate the power pulled by the gpu so it just locked. I just opened Everest and noticed it says my cpu volts is 1.08, and dropping to 1.05 when I do some things.

So should I trust Everest and just start to creep my voltage up and keep an eye on my temperatures? As I type this I'm at 36C. Has anyone known of Everest to be wrong? I don't want to overload my cpu. If Everest is right then that's probably my problem, being .2 volts under the minimum.
My System
(13 items)
 
  
CPUMotherboardOSMonitor
Pentium D 820 2.8Ghz Asus P5WD2 Windows x64 17" Samsung 712N 
KeyboardPowerCaseMouse
Rosewill RK500 Rosewill RP500 Cooler Master Praetorian Dell optical 
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My System
(13 items)
 
  
CPUMotherboardOSMonitor
Pentium D 820 2.8Ghz Asus P5WD2 Windows x64 17" Samsung 712N 
KeyboardPowerCaseMouse
Rosewill RK500 Rosewill RP500 Cooler Master Praetorian Dell optical 
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post #2 of 6
Did you clean the old driver using Driver Cleaner Pro or did you just try to overwrite it with a new driver?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel 2500k Asus P8P67 Galaxy GTX580 8GB G Skill Ripjaws 
Hard DriveOSMonitorKeyboard
Intel 80 gb SSD, Raptor 150 Windows 7 Home Premium 24" Samsung LCD Saitek Eclipse 
PowerCaseMouse
PCP&C 750W Antec P180 Logitech MX-510 blue 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel 2500k Asus P8P67 Galaxy GTX580 8GB G Skill Ripjaws 
Hard DriveOSMonitorKeyboard
Intel 80 gb SSD, Raptor 150 Windows 7 Home Premium 24" Samsung LCD Saitek Eclipse 
PowerCaseMouse
PCP&C 750W Antec P180 Logitech MX-510 blue 
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post #3 of 6
Thread Starter 
Ohh, I forgot to add that I did clean the old driver, that was one of the later things I tried. I also removed and cleaned both nvidia and ati and reinstalled the nvidia driver.

Right now I'm on the 7779 x64 driver, I had alot more lock ups with the 83.40

I really think it could have something to do with drivers too. Here's another weird thing I just noticed. If I have iTunes playing and then play a quicktime movie the sound goes all crazy on the movie and then just stops. The iTunes sound is not affected.
My System
(13 items)
 
  
CPUMotherboardOSMonitor
Pentium D 820 2.8Ghz Asus P5WD2 Windows x64 17" Samsung 712N 
KeyboardPowerCaseMouse
Rosewill RK500 Rosewill RP500 Cooler Master Praetorian Dell optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardOSMonitor
Pentium D 820 2.8Ghz Asus P5WD2 Windows x64 17" Samsung 712N 
KeyboardPowerCaseMouse
Rosewill RK500 Rosewill RP500 Cooler Master Praetorian Dell optical 
  hide details  
Reply
post #4 of 6
Thread Starter 
I decided to go back to my old videocard. I pulled the 7800gtx and put in the x800gto and couldn't get my computer to start. I figured out that it didn't like the card in the 2nd pci slot as I had the other one. Maybe having the 7800gtx in the 2nd slot was the cause of the problem all along. I couldn't get it into the first slot because the hsf is too big and was running into the protrutions on my motherboard. I don't feel like modifying my heatsink to fit the card so I guess I won't find out if that really is the problem or not.
My System
(13 items)
 
  
CPUMotherboardOSMonitor
Pentium D 820 2.8Ghz Asus P5WD2 Windows x64 17" Samsung 712N 
KeyboardPowerCaseMouse
Rosewill RK500 Rosewill RP500 Cooler Master Praetorian Dell optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardOSMonitor
Pentium D 820 2.8Ghz Asus P5WD2 Windows x64 17" Samsung 712N 
KeyboardPowerCaseMouse
Rosewill RK500 Rosewill RP500 Cooler Master Praetorian Dell optical 
  hide details  
Reply
post #5 of 6
The second pci-e slot is not a 16x slot. It is a 4x slot. You definately need it to be in the top slot. Also make sure the power splitter is getting power from 2 different molex lines.
Busa's Opti
(13 items)
 
  
CPUMotherboardGraphicsRAM
intel E6700 P5W DH Deluxe Wifi BFG 7800gtx 2g pc6400 4-4-4-12 
Hard DriveOptical DriveOSMonitor
2x WD 74G raptors in raid0 NEC 3520 winXP sp2 Dell 24" widescreen LCD 
KeyboardPowerCaseMouse
Z board w/bf2 keyset Zeus 650sli+450 dual booting UFO Opti1203 blk/UV blue logitech G7 
Mouse Pad
Xtrack "ripper" 
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Busa's Opti
(13 items)
 
  
CPUMotherboardGraphicsRAM
intel E6700 P5W DH Deluxe Wifi BFG 7800gtx 2g pc6400 4-4-4-12 
Hard DriveOptical DriveOSMonitor
2x WD 74G raptors in raid0 NEC 3520 winXP sp2 Dell 24" widescreen LCD 
KeyboardPowerCaseMouse
Z board w/bf2 keyset Zeus 650sli+450 dual booting UFO Opti1203 blk/UV blue logitech G7 
Mouse Pad
Xtrack "ripper" 
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Reply
post #6 of 6
Thread Starter 
That's probably the problem then, I assumed it was since my computer wouldn't even boot with my old video card in the 2nd slot. Maybe I'll try again at fitting the 7800 into the first slot. The 7800 gave me about 1000 more points running 3dmark05 while in a 4x slot than my x800 did in the 16x.
My System
(13 items)
 
  
CPUMotherboardOSMonitor
Pentium D 820 2.8Ghz Asus P5WD2 Windows x64 17" Samsung 712N 
KeyboardPowerCaseMouse
Rosewill RK500 Rosewill RP500 Cooler Master Praetorian Dell optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardOSMonitor
Pentium D 820 2.8Ghz Asus P5WD2 Windows x64 17" Samsung 712N 
KeyboardPowerCaseMouse
Rosewill RK500 Rosewill RP500 Cooler Master Praetorian Dell optical 
  hide details  
Reply
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