6800 GT to Ultra

KraftMayo · 12-July-05, 04:26 PM

Word on the street is modding a 6800 GT to an Ultra isnt tough at all. Couple questions.

Does anyone have instructions? How the hell do I do this?

Will this work for the AGP card?

Is it stable?

Will heat be an issue? Will the stock fan keep the board cool?

Thanks guys.

TYCOON · 12-July-05, 04:47 PM

The 6800Ultra core is 400MHz and the memory runs at 1100MHz.
The 6800GT core is 350MHz, and the memory runs at 1000MHz.

Its the simple task of using your video card overclocking tool of choice(coobits, PowerStrip, etc...)
And raising the 6800GT to 400/1100 on the slider bar, just like the 6800Ultra.

Not to sure, but I think you can even get modded 6800GT BIOS's that use 400/1100 so no 3rd party programs are needed to overclock it. Also, you may be able to flash the 6800GT with a 6800Ultra BIOS.

But you will get more help from someone else, I dont own either.

nev_payne · 12-July-05, 04:56 PM

The easiet things you could do before overclocking, is downloading the latest drivers form nVidia, and also replacing the thermal paste under the heatsink with AS5. That way any extra heat taken be quickly dispersed without the need for placing fans near the card to keep it kool. Always remember htough - AS5 should be applied the correct way...no overkill on thickness

KraftMayo · 12-July-05, 05:04 PM

No extra pipes to unlock? No problems with power?

The Arctic Silver will keep everthing cool?

Anyone have a link for the bios?

turbopsi · 12-July-05, 05:41 PM

There are no extra pipelines to unlock, you have the highest number of pipelines already(on the geforce 6*00 series anyhow) which is 16 pipelines.

Follow TYCOON's advice about overclocking it with Powerstrip or Coolbits. You need to test it's stability at Ultra speeds before you go and flash it... you could ruin your card that way.

Download Coolbits or powerstrip(google it) and use it to clock that card at Ultra speeds. If it works, artifact free, and 100% stable.. THEN I would flash it..

If you ever decide to go watercooling or just good air cooling, I could mod your BIOS for you..More voltage.. and for whatever speeds you could handle.. etc.

KraftMayo · 12-July-05, 05:45 PM

Not interested in alot of OCing, just looking for Ultra performance at GT price.

KraftMayo · 13-July-05, 07:00 PM

More questions guys.

I bought an MSI 6800GT today. I installed the latest drivers and the Coolbits registry changes.

What should I consider as a safe temp for when I go to overclock? Is there any way I i can overlay the temp on a game, so I can see what it does when it loads?

When I go into "Clock Freq. Settings", I have three options. Till I slap some thermal paste on it I'm gonna stick with "No OCing". What is the Auto OCing fuction for? How does it work? How well does it work?

When I select Manual OCing, and "detect optimal freq." it sets the core at 390, 40 over stock, and the memory at 1.09, 90 over stock. Is the software telling me something about speeds and safety.

Answers to any or all would be greatly appreciated.

KraftMayo · 13-July-05, 08:23 PM

Pimp Obi Wan Kenobi, you're my only hope.

KraftMayo · 13-July-05, 10:45 PM

Welp, I clocked it up to 400/1100, Ultra speeds, and it runs maybe 7 degrees hotter than it did stock.

Seems sucessful, though I'll only know if it artifacts. Keep your fingers crossed.

Thanks all.

wolfareno · 23-July-05, 11:41 PM

I currently own a XFX 6800GT 256mb GDDR3 and since Ive owned it (august 04) it has been clocked at 402/1100.... very very rarely did I have any issues with artifacting.

Recently I purchased the NV5 silencer and now I am able to run my card @ 412/1200 with zero problems with artifacting or crashes... I can run almost anything @ 1600x1200 w/ 4x AA

I love my 6800GT paired with the NV5...

newegg sells them for about $45 i think...
I got mine brand-new from ebay for about $30 shipped...

my two lincolns....

koolgreen · 23-July-05, 11:49 PM

You should be fine. I had a 6800gt, and was able to push it even above stock ultra speeds. For cooling I just set a 120mm fan on the back heat sink, and that keep it around 60C under full load. There's not much to gain by re-flashing the bios because they use most of the same hardware as the ultra. Also if it starts to slow down after pushing it up to a nice OC just put some more air on it cause that means it's throttling back.

j-dogg · 23-July-05, 11:55 PM

I have a 5900SE which is spec for 400mhz and the 5900 Ultra is 475 and I can do 485 no sweat. I would like to try for 500 but that will require some beefier cooling and voltz.

The mem won't OC for **** all I can get is 885 from 850.

I think you shouldn't have any problems at Ultra speeds, I sure don't

Pupp4_Kick3R · 07-September-05, 07:47 PM

Quote:

Originally Posted by KraftMayo


	Welp, I clocked it up to 400/1100, Ultra speeds, and it runs maybe 7 degrees hotter than it did stock. Seems sucessful, though I'll only know if it artifacts. Keep your fingers crossed. Thanks all.

Is this an AGP ? Or PCi E

$SOLID$ Necro · 08-September-05, 01:54 AM

Quote:

Originally Posted by KraftMayo


	Pimp Obi Wan Kenobi, you're my only hope.

Clocking Over you seek? You seek Yoda.. yes, Yoda help you he can!

Well my young Jedi friend..you are in luck

First of all, you said you aren't intrested in Overclocking...just Ultra Speeds for a GT price, guess what? It's still Overclocking, even if it just to a higher stock speed.

That is the Origin of the hobby in the first place..buying low end parts cheap and running them like the big$$ high end stuff , people have just taken the ball and run with it., OC'ing the hell out da good stuff

Now..on to the Bios Flashing portion. One thing most people don't realize is the GT Bios has "Tight" memory timings, wich is great for performance, but will somewhat limit the maximum potetentail OC speeds.

If you allready run at Ultra speeds now with CoolBits, and then go and flash it to the Ultra Bios, your scores will go actually go down because of the slower memory timings.

If you can't reach Ultra speeds, then Flashing to the Ultra bios will probably help you get your clock speeds up there.

However, I did the just opposite with my PCIE BFG 6800 Ultra, I flashed a GT Bios in it to get better memory timings !!!

One major difference between GT's and Ultra's is often overlooked, the Ultra has an extra power connector..it's there to support the increase in voltage needed for Ultra Speeds.

From what I understand, the GT is 1.3v stock, and the Ultra is 1.4v. Most GT"s however run fine with the bump in voltage as long as the cooling is decent and your sytem has a "Robust" power supply with very stable voltages.

While I was researching my quest for Mods, I found a nice utility called NBITOR, wich can be used to change memory timings, voltages and clock speeds.

I ended up raising the voltage on the GT Bios from 1.3 to 1.5v, wich allowed for around another 10-15MHZ.
To get 1.6v or more, a soldering iron and potentimeter are needed, there are a few guides at VR ZONE. Way beyond your needs, but it's nice to know it can be done, others may want to try it...

The stock BFG cooling works fine even with the higher voltage, my temps never get over 60-70C, but then again... I use "Ludicrous" air cooling methods

You can also run the fan at higher speeds by using a bios from Gainward, they allow you to run it 100% all the time.

Bottom line..just "Mod" you stock bios to run at the Ultra speeds, it will be faster.

You will need a 3.5 Floppy Drive and a spare PCI vid card (In case the flash goes bad, then you can reflash it with a good one)

I'll be back in a few with links...

EDIT: Here ya go..enjoy!

Necro's SLI Bios flashing toolkit (Links will still be relavent)

http://forums.pcapex.com/showthread.php?t=39513

MVKTECH.net (The ultimate source for hardcore vid card mods)

NVIDIA GeForce Cards
NVIDIA GeForce BIOS

FYI:

NVIDIA's official reference Ultra speeds are 400x 525 (1050DDR)

The BFG's I use in my SLI rig are "Factory" Overclocked to run 425 core and 1100 memory

Overclocking with the BFG "Out of the box stock" resulted in 450 core and 1200 memory.

After the "Mods" mentioned earlier in the post, I was able to run Benchmarks at over 480MHZ core and 1300MHZ memory.

http://service.futuremark.com/compare?3dm05=821668

Pupp4_Kick3R · 10-September-05, 12:23 AM

Oh yea got my NV Silencer 5 VGA cooler. Last night i was using a stock cooler for my 6800 GT and had my core at 408 MHz and had my memory at 1100 MHz. My temp was 63 deg. on Idle.

After installing my NV Silencer, this is what i got

$SOLID$ Necro · 10-September-05, 04:30 AM

Great job!

Now just grab the Bios editor and bump the voltage up .1 volt, you have plenty of cooling headroom now. that should get you well over 430MHZ Core.

Actually now that I think about it, instead of modding yours, and you want to try the Ultra Bios, I believe the default 1.3v is stock on the GT, and 1.4v is stock for the Ultra wich will be exactly what you want, and the looser timings may allow a little more memory speed

Just need the exact brand, model number and revision, and see if they have the Ultra version posted for download at MVKTech.

Pupp4_Kick3R · 10-September-05, 05:19 AM

Quote:

Originally Posted by $SOLID$ Necro


	Great job! Now just grab the Bios editor and bump the voltage up .1 volt, you have plenty of cooling headroom now. that should get you well over 430MHZ Core. Actually now that I think about it, instead of modding yours, and you want to try the Ultra Bios, I believe the default 1.3v is stock on the GT, and 1.4v is stock for the Ultra wich will be exactly what you want, and the looser timings may allow a little more memory speed Just need the exact brand, model number and revision, and see if they have the Ultra version posted for download at MVKTech.

LOL all these years of building machines and this is the first thing ive ever OC. Never really had the need to do it since i usually get parts that are up to par or was just too scared to do it . Anyway, Im running a PNY 6800GT Verto

$SOLID$ Necro · 10-September-05, 04:51 PM

Here are the Bios's for PNY, you will have to pick the closest match to yours and give it a try.

http://www.mvktech.net/index.php?opt...r&filecatid=67

MAKES SURE YOU BACK UP THE ORIGINAL ON A FLOPPY!!!
(In fact make 2 copies in case one is bad, and throw another copy in a folder on the desktop)

Ator · 11-September-05, 01:42 AM

Damn, these 6800's run HOT. My X800 Pro with the ATI Silencer 4 runs at 38 degrees core idle, and that's at 520/560! I'm guessing it's because of only 12 pipelines.

12-July-05, 04:26 PM	#1 (permalink)
KraftMayo Apex Techie II Join Date: Apr 2004 Location: Charlottesville, VA Posts: 107	6800 GT to Ultra Word on the street is modding a 6800 GT to an Ultra isnt tough at all. Couple questions. Does anyone have instructions? How the hell do I do this? Will this work for the AGP card? Is it stable? Will heat be an issue? Will the stock fan keep the board cool? Thanks guys. __________________ "It will test your head, and your mind, and your brain... too."

12-July-05, 04:47 PM	#2 (permalink)
TYCOON Apex Tech God Join Date: Sep 2002 Location: SCHOOLLLSSS Posts: 4,728	The 6800Ultra core is 400MHz and the memory runs at 1100MHz. The 6800GT core is 350MHz, and the memory runs at 1000MHz. Its the simple task of using your video card overclocking tool of choice(coobits, PowerStrip, etc...) And raising the 6800GT to 400/1100 on the slider bar, just like the 6800Ultra. Not to sure, but I think you can even get modded 6800GT BIOS's that use 400/1100 so no 3rd party programs are needed to overclock it. Also, you may be able to flash the 6800GT with a 6800Ultra BIOS. But you will get more help from someone else, I dont own either. __________________ AMD Athlon 64 X2 3800+ @ 2.7GHz DFI LanParty SLI-D 2GBs PC3200 @ PC3500 // 2.5-3-3-6 EVGA 7950GT 512MB @ Stock Audigy 2 ZS 36Gb Raptor (os) 2x300Gb WD SATA 16MB CACHE (storage) 450Watt OCZ modstream Coolermaster Wavemaster Last edited by TYCOON; 13-July-05 at 05:17 PM.

12-July-05, 04:56 PM	#3 (permalink)
nev_payne Apex Tech God Join Date: Mar 2004 Location: Somerset, England UK........ News Threads: 8,143 Posts: 4,085	The easiet things you could do before overclocking, is downloading the latest drivers form nVidia, and also replacing the thermal paste under the heatsink with AS5. That way any extra heat taken be quickly dispersed without the need for placing fans near the card to keep it kool. Always remember htough - AS5 should be applied the correct way...no overkill on thickness __________________ You have reached Nev's Voicemail. Please leave a message in the PM. Thank-you.

12-July-05, 05:04 PM	#4 (permalink)
KraftMayo Apex Techie II Join Date: Apr 2004 Location: Charlottesville, VA Posts: 107	No extra pipes to unlock? No problems with power? The Arctic Silver will keep everthing cool? Anyone have a link for the bios? __________________ "It will test your head, and your mind, and your brain... too."

12-July-05, 05:41 PM	#5 (permalink)
turbopsi Supe-Hoe-Charged Join Date: Jun 2004 Location: Birmingham, Alabama Posts: 1,737	There are no extra pipelines to unlock, you have the highest number of pipelines already(on the geforce 6*00 series anyhow) which is 16 pipelines. Follow TYCOON's advice about overclocking it with Powerstrip or Coolbits. You need to test it's stability at Ultra speeds before you go and flash it... you could ruin your card that way. Download Coolbits or powerstrip(google it) and use it to clock that card at Ultra speeds. If it works, artifact free, and 100% stable.. THEN I would flash it.. If you ever decide to go watercooling or just good air cooling, I could mod your BIOS for you..More voltage.. and for whatever speeds you could handle.. etc. __________________

12-July-05, 05:45 PM	#6 (permalink)
KraftMayo Apex Techie II Join Date: Apr 2004 Location: Charlottesville, VA Posts: 107	Not interested in alot of OCing, just looking for Ultra performance at GT price. __________________ "It will test your head, and your mind, and your brain... too."

13-July-05, 07:00 PM	#7 (permalink)
KraftMayo Apex Techie II Join Date: Apr 2004 Location: Charlottesville, VA Posts: 107	More questions guys. I bought an MSI 6800GT today. I installed the latest drivers and the Coolbits registry changes. What should I consider as a safe temp for when I go to overclock? Is there any way I i can overlay the temp on a game, so I can see what it does when it loads? When I go into "Clock Freq. Settings", I have three options. Till I slap some thermal paste on it I'm gonna stick with "No OCing". What is the Auto OCing fuction for? How does it work? How well does it work? When I select Manual OCing, and "detect optimal freq." it sets the core at 390, 40 over stock, and the memory at 1.09, 90 over stock. Is the software telling me something about speeds and safety. Answers to any or all would be greatly appreciated. __________________ "It will test your head, and your mind, and your brain... too."

13-July-05, 08:23 PM	#8 (permalink)
KraftMayo Apex Techie II Join Date: Apr 2004 Location: Charlottesville, VA Posts: 107	Pimp Obi Wan Kenobi, you're my only hope. __________________ "It will test your head, and your mind, and your brain... too."

13-July-05, 10:45 PM	#9 (permalink)
KraftMayo Apex Techie II Join Date: Apr 2004 Location: Charlottesville, VA Posts: 107	Welp, I clocked it up to 400/1100, Ultra speeds, and it runs maybe 7 degrees hotter than it did stock. Seems sucessful, though I'll only know if it artifacts. Keep your fingers crossed. Thanks all. __________________ "It will test your head, and your mind, and your brain... too."

23-July-05, 11:41 PM	#10 (permalink)
wolfareno Apex Advanced Techie Join Date: Jan 2003 Location: Wherever Uncle Sam sends me - currently New Mexico Posts: 132	I currently own a XFX 6800GT 256mb GDDR3 and since Ive owned it (august 04) it has been clocked at 402/1100.... very very rarely did I have any issues with artifacting. Recently I purchased the NV5 silencer and now I am able to run my card @ 412/1200 with zero problems with artifacting or crashes... I can run almost anything @ 1600x1200 w/ 4x AA I love my 6800GT paired with the NV5... newegg sells them for about $45 i think... I got mine brand-new from ebay for about $30 shipped... my two lincolns.... __________________

23-July-05, 11:49 PM	#11 (permalink)
koolgreen Apex Advanced Techie Join Date: May 2005 Location: Michigan Posts: 188	You should be fine. I had a 6800gt, and was able to push it even above stock ultra speeds. For cooling I just set a 120mm fan on the back heat sink, and that keep it around 60C under full load. There's not much to gain by re-flashing the bios because they use most of the same hardware as the ultra. Also if it starts to slow down after pushing it up to a nice OC just put some more air on it cause that means it's throttling back. __________________

23-July-05, 11:55 PM	#12 (permalink)
j-dogg Mystical Schwinn Guru Join Date: Jul 2003 Location: West Melbourne, Fl-HOE-rida Posts: 8,821	I have a 5900SE which is spec for 400mhz and the 5900 Ultra is 475 and I can do 485 no sweat. I would like to try for 500 but that will require some beefier cooling and voltz. The mem won't OC for **** all I can get is 885 from 850. I think you shouldn't have any problems at Ultra speeds, I sure don't __________________

10-September-05, 12:23 AM	#15 (permalink)
Pupp4_Kick3R Apex Techie I Join Date: Aug 2005 Posts: 74	Oh yea got my NV Silencer 5 VGA cooler. Last night i was using a stock cooler for my 6800 GT and had my core at 408 MHz and had my memory at 1100 MHz. My temp was 63 deg. on Idle. After installing my NV Silencer, this is what i got

10-September-05, 04:30 AM	#16 (permalink)
$SOLID$ Necro Mastah Overclocker Join Date: May 2003 Location: Lima, Ohio Posts: 7,217	Great job! Now just grab the Bios editor and bump the voltage up .1 volt, you have plenty of cooling headroom now. that should get you well over 430MHZ Core. Actually now that I think about it, instead of modding yours, and you want to try the Ultra Bios, I believe the default 1.3v is stock on the GT, and 1.4v is stock for the Ultra wich will be exactly what you want, and the looser timings may allow a little more memory speed Just need the exact brand, model number and revision, and see if they have the Ultra version posted for download at MVKTech. __________________ Join the PC Apex "Overclock and Benchmark" team today! Click Here! Necro's "Ultimate Links" Collection Click Here!

10-September-05, 04:51 PM	#18 (permalink)
$SOLID$ Necro Mastah Overclocker Join Date: May 2003 Location: Lima, Ohio Posts: 7,217	Here are the Bios's for PNY, you will have to pick the closest match to yours and give it a try. http://www.mvktech.net/index.php?opt...r&filecatid=67 MAKES SURE YOU BACK UP THE ORIGINAL ON A FLOPPY!!! (In fact make 2 copies in case one is bad, and throw another copy in a folder on the desktop) __________________ Join the PC Apex "Overclock and Benchmark" team today! Click Here! Necro's "Ultimate Links" Collection Click Here!

11-September-05, 01:42 AM	#19 (permalink)
Ator At-Whore Join Date: Mar 2005 Location: The ends of the earth Posts: 2,057	Damn, these 6800's run HOT. My X800 Pro with the ATI Silencer 4 runs at 38 degrees core idle, and that's at 520/560! I'm guessing it's because of only 12 pipelines. __________________ AMD Opteron 146 CAB2E 0540 FPMW @ 3216Mhz 321.6x10 (max OC benchable, 300x10 daily)\| Radeon X1800XT @ 766/900 (stock cooler, 700/800 daily) \|SuperPI 1M: 26.109\| 3DMark05: 11454 \| 3DMark03: 21355 \| 3DMark01: 40456 \| Join Team Ator's F@H FORCE! Click HERE for info! NOW RECRUITING!