eVGA 6800 Vanilla Troubles HELP!

[sgrim80]

I have half a notion to just replace the motherboard thereby forcing an O/S reinstall, if the card doesnt work after that, it's gotta be the card. Everything else in my system has been replaced lately lol.

 

[DrHitch]

Wait for next driver release from nvidia. Quote from release notes forceware 81.95:

Open Issues in Version 81.95

NVIDIA Issues-Single GPU

*Rendering problems occur in Need for Speed:Most Wanted
This issue will be fixed in the next NVIDIA driver release.

Forceware 81.95 Release Notes

As far as I know if only one game (which uses 3D) have problems like "strange colored geometric shapes" it's driver issue.

If that doesn't help put your card in some other system and see what happens or do a fresh install of Windows or... I don't know... replace mobo.

 

[aatf510]

I am sorry to say but all of the above are all *BS*
I have run a 6800GT rig with a 330w PSU with 11A on the +12 line and it was rock solid, I have already measured that my 7800SLI rig do not use more than 250w @ any given time.
Last but not least, spend $20 on a mutimeter before judging that you have a bad PSU.
It might show that it's jumping from 11.1v to 13.9v in windows but a mutimeter will show it going from 11.8v to 12.1v..

 

[yhelothar]

Originally posted by: zagood
Okay, gotta bolt, but here's the deal...

You need probably about 24 amps on the +12v rail of your power supply to run that card consistently. If your power supply is less than that (which I'm almost positive it is) you should get a new one.

However, just because your power supply should "probably" be replaced, doesn't mean that there's not a problem with your game or video card.

-z

My enermax 431w has a 12V+ rail of 18amps. It runs my 6800 fine, along with my 3 hard drives and overvolted A64 3000+
But then again, your rails are way too low. Enlight does make very solid, high quality PSUs though.

 

[BrokenArrow]

The ATX spec states the following tolerances for P/S voltages

+5VDC +/- 5%
-5VDC (if used) +/- 10%
+12VDC +/- 5%
-12VDC +/- 10%
+3.3VDC +/- 4%
+5VSB +/- 5%

I would not trust the accuracy of your motherboard or software to read these voltages. Use a multimeter. That being said, as stated before, if its only one game (and a game that nVidia even admits they have an issue with) I would not think its a hardware issue at all.

 

[toyota]

Originally posted by: toattett
I am sorry to say but all of the above are all *BS*
I have run a 6800GT rig with a 330w PSU with 11A on the +12 line and it was rock solid, I have already measured that my 7800SLI rig do not use more than 250w @ any given time.

you are crazy if you think that an 7800 SLI setup only uses 250 watts under load for the entire system. one 7800gtx by itself uses over 100 watts under load. total system under load with ONE 7800gtx is way more than 250 watts. since you will argue here is a link. http://anandtech.com/video/showdoc.aspx?i=2451&p=20 .

 

[aatf510]

Originally posted by: toyota

Originally posted by: toattett
I am sorry to say but all of the above are all *BS*
I have run a 6800GT rig with a 330w PSU with 11A on the +12 line and it was rock solid, I have already measured that my 7800SLI rig do not use more than 250w @ any given time.

you are crazy if you think that an 7800 SLI setup only uses 250 watts under load for the entire system. one 7800gtx by itself uses over 100 watts under load. total system under load with ONE 7800gtx is way more than 250 watts. since you will argue here is a link. http://anandtech.com/video/showdoc.aspx?i=2451&p=20 .

They use a Kill-A-Watt unit to measure the output current coming from the wall outlet.
Therefore, according to that, it's 285 watts times 0.75 (PSU efficiency, or 0.80 if it's a seasonic) which is equal to 214 watts the computer is actually drawing.
I use the same unit to measure my 7800GT SLI system and it's 311 watts absolute max from the wall outlet, and that's 2 x Prime95 + 3Dmark05.

 

[toyota]

Originally posted by: toattett

Originally posted by: toyota

Originally posted by: toattett
I am sorry to say but all of the above are all *BS*
I have run a 6800GT rig with a 330w PSU with 11A on the +12 line and it was rock solid, I have already measured that my 7800SLI rig do not use more than 250w @ any given time.

you are crazy if you think that an 7800 SLI setup only uses 250 watts under load for the entire system. one 7800gtx by itself uses over 100 watts under load. total system under load with ONE 7800gtx is way more than 250 watts. since you will argue here is a link. http://anandtech.com/video/showdoc.aspx?i=2451&p=20 .

They use a Kill-A-Watt unit to measure the output current coming from the wall outlet.
Therefore, according to that, it's 285 watts times 0.75 (PSU efficiency, or 0.80 if it's a seasonic) which is equal to 214 watts the computer is actually drawing.
I use the same unit to measure my 7800GT SLI system and it's 311 watts absolute max from the wall outlet, and that's 2 x Prime95 + 3Dmark05.

ok im lost. the way i am reading your post doesnt make sense to me. the way you are calculating the watts used would mean an 80% efficient psu would use MORE watts than a 75% one. so if you use a more efficient psu would it use less than that 285 watts at the wall before you factor in the psu efficiency?? please explain.