Volt mod your 6800go non Ultra L@@K here! - Page 9

I was saying this all time.. lol... Application & program limits me in overclocking. I can't go any futher than 379/799 Mhz.

Those clocks was setted in BIOS before flashing. A guy mentioned this so i tried it.

ATITools is depends on artifacts detection and performance... the more frequent artifacts it has the ATi will lower your clocks.

The 438/873Mhz was a "Heavens of Artifacts"

shoman, these are greyed out in mine, downloaded from guru3d
(it was bugging me) With current drivers I max out on stability at 380 core / 750 memory. Any more on core and it starts inhibiting after a time.

Tried upping the voltage and had the same core limits

Looks like another case of the 41 core having more head room than the 42

O thx for the latest version but unfornatly I need to register.... can you DL it and upload it here ?

*Edited*

NVM 280K in forum is the file size limit lol

lol... you are now making me to reflash the BIOS again... lol! I will do it maybe tomorrow... I have works to do.

You can use RIVATUNER TO DISABLE THE STABILITY CHECKING... just look for the overclocking 6800 thread...

that's how I can push my clocks to 390 (starts artifacting horribly and thus I've not gone higher...)


I AM GOING TO TRY THE GRFX BIOS FLASH RIGHT AFTER I BURN THE BOOT CD... IF YOU DON'T hear from me again (cause it will be like 3 months before I will be able to afford a 7800 to mod into this lappie...) then I have Failed

wish me luck.....

wow, ~5500, I'm damn impressed mmz, excellent, excellent work. And of course thanks shoman for doing all the tweaking/research/work, etc.
Great job guys.

A thing I'd like to point out is that fact that 83C is actually pretty cool when you consider that the ultra's go to 95C and temp throttle. There's gotta be a big circuitry difference between the two cards. Well, that and the fact that GDD3 probably causes a good portion of that heat increase. That said, I'm very much intrigued. I'd like to try it but don't want to fry my card as I need my laptop for school... I'm going to pull my laptop apart and take a good luck at the cooling solution and the circuitry on the board and see if there's any kind of universal improvements that can be made.

Also, when you flashed your clocks onto the card were those the 3D only clocks (i.e., you still had your 125/318 clocks at 1.1v), or were they the only clocks and the card ran at 1.39v nonstop?

I have Returned.... (which means that my card is not dead)

But even though my card is not dead... my spirits are broken... No matter what voltage I used it still artifacts like crazy after 385... I pushed it as high as 1.36v and no go...

I did not have my external cooling solution going and I would need to burn another cd with a 1.4v rom to go higher... I think I will wait and see if anything else comes up... I must have read the entire thread a dozen times so I don't think I did it wrong... I guess some cards won't go higher no matter how much you push em... I did see a temperature difference of 4c between stock and modified voltage so i must have done it right... i guess i'm still stuck around ~4500 until I get enoughf for the 7800...

Looking like some success for the NV41M core but none for the NV42 I didn't really see any temp difference between my 1.1 and 1.38v

Guys I agree with mmzmaster.. we now know that theoretically these speeds are possible on the 6800 Go by overvolting.. but the thing is.. do you really want to risk it? the 6800 Go is not cooled in the same way as the ultra.. 1 heatpipe less etc.. so by doing this.. your really risking the life-span of your cards.. and any way at the moment.. our cards will play any of the most demanding games without problems with a lil overclocking.. im getting near 4600 in 3dmark05 and ive still got some room to move, just havent pushed it yet. So why risk it? if you really want that kinda performance b/c you MUST have it... honestly guys.. just sell your 9300 and get an M170

Been using the beta ATI tool, thks for link. Its much different than v24 ATI tool

So......not much has changed for my card
ATI max core suggestion was 343.5 which suprised me as I had been running with 350/750 for months with 76.5 drivers without any apparent visual artifacts, then 380/780 with 77.77 drivers

But the artifact finder clearly shows them coming in at 350 clock, so I am now running with 340/750 overclock (the FPS was much the same) and later I'll find out how that impacts the 3dmark5. I figure why not run it there, and prevent artifacting (nvidia setting is default quality too), and because of the throttling(?) I saw, see below

I got:

271 FPS @ 340/750 high 60s GPU
282 FPS @ 380/750 70deg GPU
288 FPS @ 390/750 73deg GPU
Flashed different voltage combinations 1.36, 1.37,1.38, on voltage 2
Tried with 2 and 3 entries
Tried with overvoltage on all 3 voltages

No change to when artifacts came in on core clock speed with the increased voltage. Very dissapointed in this.
Noticed card throttling or at least hicupping when it hit 71deg C clocks setting 750 and above
I have fangui running

The original BIOS (now back to it) has 1.1v on all 3 channels, and gives same FPS in ATI tool

Seems I'm sh*t out of luck, I would love to see if anyone with an v42 can do this, due to manufacturing variances. Dont think my card clocks particulary high for an v42
One thing I didn't do was overclock the core and memory DIRECTLY in bios like mmzmaster, maybe there's something of note there, linking the overvolted and overclocked bios. Doubt it though, think its the distinction between v41 and v42

Good luck.

My theory is that the program still isn't compatible with the new nv42 6800 go cores. Maybe someone should contact the guy who codes nibitor and send him a copy of the nv42 bios for him to analyze. Then hopefully, he'll add support for vmodding in the next release.

Something is not right about your ATITool FPS. Me running at 1.1V | with 375/775Mhz | Temp @ 73'C is giving me an average of 305 FPS.

2nd mission... lol

Setting in my BIOS before flashing
Voltage: 1.39V
Core Clock: 430Mhz
Memort Clock: 850Mhz
(I lowered those clocks... scare of being busted)

15-20 run on ATITool 0.25 Beta 8
Final Core Clock: 397Mhz (5Mhz lowered for headroom)
Final Memory Clock: 793Mhz (5Mhz lowered for headroom)
Max Temperature: 79'C
3DMark05 score: 4626

Conclusion:
It seems like clocks are gone back to near non-ultra stats but a little better. I think running at 1.39 just to increase the heats more not the performance. lol.

I ran back with the same core/mem 375/775Mhz speed, my score were the near same but the temp when up by 6-8'C extra because of the higher volt.

So far, I hope the chip is not weared off yet.