Overclock.net › Forums › Graphics Cards › NVIDIA › 8800GT Poor Peformance/Power issues
New Posts  All Forums:Forum Nav:

8800GT Poor Peformance/Power issues

post #1 of 3
Thread Starter 
Quote:
Hi y'all

This post is to assist fellow Nvidia 8800GT owners who have experienced wierd poor performance and sometimes black screens and other issues.

About a month ago i got a(Asus) 8800GT and put it in my X38DQ6 motherboard powered by a Corsair HX620PSU (and Vista). Right from the getgo my machine was sloooooow. Within minutes i was getting blackscreens which forced me to reset. Got a few system freezes as well. After a few days of fiddling around i got the system to run but it was still so slow it wasnt funny.

After about two weeks of reassembling the system, checking connections, reformating the harddrive, trying XP vs Vista etc etc i thought theres obviously something wrong, this is the famous 8800GT card , it must be faulty.

Took it back and luckily my supplier exchanged it over the counter with a Gigabyte 8800GT. Whacked it in and guess what? Same issues.

Anyway after alot of researching it seems im getting insufficient power issues similar to the "power Sentinel" issue with XP.

Quoted from one of the links below:

"Apparently it is a timing issue, when your computer first turns on the PSU sends power down each line and then backs off waiting for the computer to start the boot process. With the G92 cards they are expecting to see this at a different time than when they are actually getting the signal and it causes them to think they are underpowered so they clock themselves back"

The issue is explained in these quotes and threads and has been acknowledged by PSU makers, Nvidia Partners and others.


An email from Antec customer support:


Quote :
We originally noticed this problem with the 8800GTX video cards. Nvidia tested our power supply with the cards to certify them for SLI testing and they passed with flying colors. We sent out a fix when we saw there was a problem, the fix worked and now we are noticing that the newly released 512mb GTS and GT cards are not working with this new revision.


It now seems that this problem is not only with Antec. Other manufacturers are having problems with the G92 card, and their power supplies. Nvidia is now helping Antec, and these other companies to find a solution to the problem.

The power supply will work with any other video card besides the G92 based 8800 series cards.

We apologize for the inconvenience this may have caused.

Antec Customer Support

From a Corsair Rep:

Quote :


We are working with nVidia on this and it's tough to track down because it doesn't follow any logical progression. We can't say "all people with Gigabyte motherboards" or "all people with EVGA graphics cards" or "all people with Corsair PSUs" have this issue, in fact it doesn't seem to be tied to any one component.

The only thing that's clear is that it's some mix of the motherboard, video card, and power supply somehow. I say this because some people RMA the PSU and get a new one and it fixes it, other people RMA the video card and it fixes it, and yet other people change out their motherboard and it fixes it.

The only thing that's clear is that it is ONLY a known issue with G92-based cards so far,
My theory is that it's a component variance issue, and probably on the voltage monitoring hardware on the GPU itself. The G80 cards have no problems at all, but the G92s do, so I'm trying to work with nVidia to determine what the changes in voltage/power monitoring hardware in the two architectures were and how that could affect us. We've only been able to duplicate it in the lab with a couple of bad video cards that reproduce the error on ANY PSU (enermax, antec, corsair, fsp, whatever) so it can't be just that.

From Ram Guy (Corsair Product Guru)

Quote :

So far all the cards that have been posted as having this problem are using the G92 core (8800GT 512MB and 8800GTS 512MB), which consume less power than the older 8800 (GTX, Ultra, GTS 320/640) cards which use the G80 core. We are currently working with Nvidia to find out what might be causing these issues so that we can resolve them.


From a Silverstone Rep:

Quote :

Manufacturer Response:Thank you very much for purchasing a SilverStone and I apologize for the inconvenience you have experienced. The new 8800GT and 8800GTS 512MB cards have unique power draw timings that are different from the older cards such as 8800Ultra/GTX/GTS 320MB/640MB.

ORIGINAL: EVGATech_JacobF

EVGA and NVIDIA are aware of the issues that some are experiencing with specific powersupplies.
With that being said, we are working towards a fix, I am sorry that I do not have more information at this time.

Thanks,

http://www.jonnyguru.com/forums/showthread.php?t=3584

http://www.hardwarecanucks.com/forum...ugh-power.html

http://forums.pcper.com/showthread.php?t=448319

http://www.tomshardware.com/forum/24...0-power-issues

Theres alot more threads on different forums but you get the idea.

There is a new sitcky about Power Sentinel issues but Vista users wont get that message and will just have poor perfomance. Its the same issue though and the beta driver 169.44 does help but doesnt completely solve the issue.

I hope this will help new 8800GT owners and save them weeks of frustration and testing.
Source
Biskit Bake
(13 items)
 
  
CPUMotherboardGraphicsRAM
E2140 @ 3.0 [375x8] M0 DFI BloodIron P35-T2RL Evga 8800gt 4gb Gskill PK pc2-6400 @ 900mhz 
Hard DriveOptical DriveOSMonitor
WD740ADFD - 74gb Raptor, WD6400AAKS 2 x Optiarc AD-7191S 20X DVD±RW Windows Vista Ultimate 32-bit 22" Acer P223W @ 1680 x 1050 
KeyboardPowerCaseMouse
Logitech G15 Pc Power & Cooling Silencer 610 EPS12V Coolermaster CM690 Dominator Razer Copperhead - Chaos Green 
Mouse Pad
Razer eXactmat 
  hide details  
Reply
Biskit Bake
(13 items)
 
  
CPUMotherboardGraphicsRAM
E2140 @ 3.0 [375x8] M0 DFI BloodIron P35-T2RL Evga 8800gt 4gb Gskill PK pc2-6400 @ 900mhz 
Hard DriveOptical DriveOSMonitor
WD740ADFD - 74gb Raptor, WD6400AAKS 2 x Optiarc AD-7191S 20X DVD±RW Windows Vista Ultimate 32-bit 22" Acer P223W @ 1680 x 1050 
KeyboardPowerCaseMouse
Logitech G15 Pc Power & Cooling Silencer 610 EPS12V Coolermaster CM690 Dominator Razer Copperhead - Chaos Green 
Mouse Pad
Razer eXactmat 
  hide details  
Reply
post #2 of 3
I can say that I have used 2 different PSU's with my 8800GT's and haven't had any problems like this. An Enermax Whisper II 600W and my new Corsair 750TX both worked fine with my 8800GT's.
Easy V3
(17 items)
 
12 Pack
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7-4820k Asus Rampage IV BE evga 1080ti FE w/ hybrid kit 16 GB G.Skill Trident X 2400mhz  
Hard DriveHard DriveOptical DriveCooling
Samsung 840 EVO 120gb Samsung 840 EVO 1TB Samsung Blu-ray Corsair H110 
OSMonitorKeyboardPower
windows 10 Asus PG278Q Ducky Shine 3 - blue led - cherry mx browns Seasonic Platinum-1000 
CaseMouseMouse PadAudio
Dimastech Easy V3 Mionix NAOS 8200 Mionix Ensis 320 titanium HD  
Other
audio technica ATH-A900X 
  hide details  
Reply
Easy V3
(17 items)
 
12 Pack
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7-4820k Asus Rampage IV BE evga 1080ti FE w/ hybrid kit 16 GB G.Skill Trident X 2400mhz  
Hard DriveHard DriveOptical DriveCooling
Samsung 840 EVO 120gb Samsung 840 EVO 1TB Samsung Blu-ray Corsair H110 
OSMonitorKeyboardPower
windows 10 Asus PG278Q Ducky Shine 3 - blue led - cherry mx browns Seasonic Platinum-1000 
CaseMouseMouse PadAudio
Dimastech Easy V3 Mionix NAOS 8200 Mionix Ensis 320 titanium HD  
Other
audio technica ATH-A900X 
  hide details  
Reply
post #3 of 3
Wow, interesting. I'm hoping to have an 8800gt soon, so I'll have to keep this in mind. It's good of you to post this! What an odd problem though...so unexpected. I wonder how many other gt owners out there are experiencing this?
    
CPUMotherboardGraphicsRAM
i5-2500K Biostar TP67B+ XFX HD5750 1GB 2x4GB DDR3 Corsair 1600 
Hard DriveOSMonitorPower
60GB OCZ SSD, 2x160GB HDD RAID0, 500GB+500GB+1.5TB Windows 7 Ultimate 64-bit Samsung SyncMaster 930B Antec SmartPower 450w 
Case
Antec 900 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i5-2500K Biostar TP67B+ XFX HD5750 1GB 2x4GB DDR3 Corsair 1600 
Hard DriveOSMonitorPower
60GB OCZ SSD, 2x160GB HDD RAID0, 500GB+500GB+1.5TB Windows 7 Ultimate 64-bit Samsung SyncMaster 930B Antec SmartPower 450w 
Case
Antec 900 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › 8800GT Poor Peformance/Power issues