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View Full Version : BFG 6800GT OC Probs


HKPolice
08-16-04, 03:16 AM
I've attached a huge copper heatsink + 80mm fan, and I can run rthdr demo flawlessly at 458Mhz/1.16Ghz at only 57C with modded 1.4v BIOS, but when I go into games, I get huge artifacts after a while and eventually corrupts the screen and freezes.

I doubt this is a temperature issue since 57C is perfectly stable in the demo, and ambient temps according to the video card is only 33C.

I tried flashing the BIOS for 1.5v, but that just corrupts the screen almost instantly when going into a game.

The max stable speed I can run is only 445Mhz/1.16Ghz what's going on here? :(

Mojoe
08-16-04, 03:47 AM
Guess it has to do with that the GT only has one molex. Tried to flash mine with a 1,4v bios but it hard locked in games at 400/1100 so i flashed it back with 1,3v to get it stabel at 400/1100.

saturnotaku
08-16-04, 07:13 AM
The max stable speed I can run is only 445Mhz/1.16Ghz what's going on here? :(

Jebus, why can't some people just be happy that they can even OC their card at all?

There is absolutely nothing wrong with your card. Any type of overclocking, even if it is just 5 MHz over stock is a bonus.

Knell2
08-16-04, 10:45 AM
Maybe I should start a thread:

Title: OMG my 6800gt is junk

Message: Oh. I can't run my 6800gt at 700/1400. I am seeing smoke all over the card.


Your title is misleading ppl IMO.

Chippy
08-16-04, 11:10 AM
I tend to agree with the other posters here. 458 is a **massive** overclock and I am suprised it would even run at that speed, let alone produce artefacts.

HKPolice, its not just about temperature you know. Just because the temperature is OK doesn't mean it is supposed to run at that speed.

Since you can get 445 stable, I would consider yourself *****EXTREMELY***** lucky. My BFG 6800GT OC will not do much more than 400. In fact sometimes it fails the coolbits test at only 400.

Chip/

ghostboy
08-16-04, 02:53 PM
consider all of you lucky. I can't even run mine at 381/1.03 without getting artifacts on that turtle in 3dmark. all other tests run flawlessly except for that turtle shell.

hypertek
08-16-04, 07:09 PM
im just a hair over ultra speeds overclocking mine. Where do you get the bios and voltage hack stuff??

steveuk
08-16-04, 07:16 PM
Ultra is clocked at 400Mhz, so you're not "just a hair" over a regular 6800Ultra. You're running your card 27% above stock speeds and you are still not happy? :rolleyes:

Chippy
08-17-04, 03:04 AM
Ultra is clocked at 400Mhz, so you're not "just a hair" over a regular 6800Ultra. You're running your card 27% above stock speeds and you are still not happy? :rolleyes:

Hypertek hasn't said what speed he's running. Perhaps you are mixing him up with HKpolice?

Chip

HKPolice
08-17-04, 04:10 AM
You guys have to understand that my card has been highly modded. Running 400Mhz with stock cooling is considered good since the stock cooling is pure crap.

I've seen people run upto 460/1.2Ghz on a 6800GT with watercooling, full load temps of around 53C, with stock 1.3v BIOS... so my card isn't actually THAT good.

saturnotaku
08-17-04, 10:32 AM
I've seen people run upto 460/1.2Ghz on a 6800GT with watercooling, full load temps of around 53C, with stock 1.3v BIOS... so my card isn't actually THAT good.

And those people probably happened to get cards that are particularly good at overclocking while yours isn't. That's the way it goes.

steveuk
08-17-04, 10:33 AM
Hypertek hasn't said what speed he's running. Perhaps you are mixing him up with HKpolice?


Oh... You're right, my bad :angel2:

hypertek
08-17-04, 04:30 PM
i got the newer bfg with the twinfan single copper heatsink taht covers both ram and gpu. I recently took it off and applied arctic silver 3 (which is waht i ahve from left overs)... The heatsink uses thermal pads and these are a new concept to me that im not too familure with, but I run my gpu at 413 and mem at 1.16. havent tried higher.

ghostboy
08-17-04, 04:57 PM
are those settings higher than what you could overclock when you had it without the as3?

hypertek
08-17-04, 07:01 PM
I actually dont know.. i was running at ultra stock before i did it.