6800gt volt mod done.. results here

[Ironmanstl]

After hours of reading on the volt mod for the 6800gt, I decided to go for it.

For those who don't know the 6800gt has a stock 3d voltage of 1.3, while an ultra and ultra extreme has 1.4, and possibly an option for 1.5v.


I used NVflash 4.42 to copy my current bios. I made a backup of the stock bios just in case. Then in windows I simply bumped the stock 3d voltage from 1.3 to 1.4 using Omniextreme editfx 1.5. Then went back to NVflash and flashed my new bios with the upped voltage. Took all of 10 mins.


Before volt mod:
My stock bfg6800gt oc has clock speeds of 370/1000.
I have been able turn it up to 400/1100 prior to mod and play doom3 for hours or run benchmarks with no problems at all, though when I did a detect optimal frequencies I would only receive a max suggested setting of 400/1050. temps were about 53-55 idle and 72-76 max load.

with 66.81 drivers my 3dmark03 score was 12678 and 3dmark05 was 5215


After volt mod:
Detect optimal frequencies suggests 420/1110. So I am certain I can still turn it up some above those figures. Temps have of course increased a bit. 54-56 idle and 75-79 max load. No big deal, I plan on ordering an Artic Cooling Silencer and slapping some AS5 on there.

with 66.81 drivers my 3dmark03 score is now 13030 and 3dmark05 is 5425.

There is no artifact issues so far and I will test what my max frequencies are over the next week or so.

I know some of you will say why didn't I just buy an ultra. Well when I bought my gt, I orignially wanted an ultra, but there was only 1 store in my city that had any hi end cards in stock, (this was the first time I heard about BFG) and this was the top one available at the time. Besides if I had the ultra, I would push it anyway.

I can't speak for other 6800 manufacturers, but BFG definatley makes some quality products.
Iron

 

[chilled]

:beer:

 

[otispunkmeyer]

wow u risk possibly damaging your card for a measily 400 points in 03 and an even more measly 200 in 05?!?!?! if it does ultra speed on stock voltage i would leave it at that......dont think u really need it to be all that powerful

 

[Aleksandar]

some people just whant the MAX it dont matter if they need it or not
Nice oC man Congrats good to see someone with the guts to risk a new card :beer:

 

[imported_JeReMY]

Originally posted by: Aleksandar
some people just whant the MAX it dont matter if they need it or not
Nice oC man Congrats good to see someone with the guts to risk a new card :beer:

If they want the max, then why don't they spend the extra money and not risk wrecking it?

 

[Ironmanstl]

Originally posted by: JeReMY

Originally posted by: Aleksandar
some people just whant the MAX it dont matter if they need it or not
Nice oC man Congrats good to see someone with the guts to risk a new card :beer:

If they want the max, then why don't they spend the extra money and not risk wrecking it?

Some of you just don't get it do you...

 

[OMG1Penguin]

The risk/reward ratio is what makes life interesting.

I clicked through thinking you meant pencil volt-mod... I am thinking of doing that on my XT PE

 

[Marsumane]

Originally posted by: Ironmanstl

Originally posted by: JeReMY

Originally posted by: Aleksandar
some people just whant the MAX it dont matter if they need it or not
Nice oC man Congrats good to see someone with the guts to risk a new card :beer:

If they want the max, then why don't they spend the extra money and not risk wrecking it?

Some of you just don't get it do you...

I understand what ur doing. Some people just dont care much about safety and like to experement with things to see if they can push things. These people are those that oc their procs, ram, video cards, buy the aftermarket coolers, run countless hours of prime 95 and 3dmark, and spend (or save) the extra dollar due to their outrageous overclocks. For some people, its not about "ultra" speeds. Nor is it about clocking their 2500+ mobile to "3200+" speeds. No. We want 5% above ultra or 3300+ speeds. Higher if we can. We take these risks because it is our hobby and we feel a sesne of accomplishment with a side of that little extra perfromance when we can get that much more in comparison to the marginal overclocker. By the time the 6800 series becomes cheap enough to mess with (by yours and many pplz standards) 1/2 of the ppl in that catagory will already have a better card in our systems and wont care about how "cheap" 6800gt's can be voltmodded for a 5% diff in oc. You have to think of the mentality of these people.

 

[Manzelle]

<--- 420/1200 no voltage mod...I don't know if I would risk it...

 

[Ironmanstl]

Originally posted by: Manzelle
<--- 420/1200 no voltage mod...I don't know if I would risk it...

Thats one of the highest gt overclocks I have heard of
congrats


I reflashed back to my stock gt bios,
now that I know it works,
I think I'll wait till I have my NV5 mounted

 

[MDE]

Ironmanstl, which cooler do you have on there? The BFG one or reference Nvidia?

 

[Ironmanstl]

Originally posted by: MDE
Ironmanstl, which cooler do you have on there? The BFG one or reference Nvidia?

stock bfg 2 fan led/cooler
http://www.bfgtech.com/6800GTOC.html

 

[Slappy00]

some of the higher overclocks you read about usually involve 1.6ns samsung ram and very good cooling setups.

In other forums i have seen 460/1200

I for one am happy with ultra speeds (although getting all you can get out of memory does make a difference) but some people just are not satisfied unless they have the fastest possible, and thats fine with me more power to em.