Sampsa & Kamu: GeForce 7800 GTX SLI with LN2 [Archive]

Sampsa

06-26-2005, 11:35 AM

Ok, G70 cold bug is fixed with BIOS update. The problem was serious performance drop when cards were cooled below 35C. New BIOS disables temperature sensor in drivers and throttling mechanisms.

We did some testing today with Kamu and were able to run cards in SLI when GPUs were working at 580 MHz and memory at 1420 MHz. This was with default voltages and around -25C was measured from the base of GPU copper containers.

There was still some strange behavior when going above 580/1420. System froze immediately at 525/1425 when I pressed Rivatuner's "Test" button even though 580/1420 worked fine in 3DMark05. Same thing happened with Coolbits.

Next we'll do some modifications and try to get our CPU even higher. Currently we are able to run 3DMark05 at 3575 MHz.

:toast:

althes

06-26-2005, 11:38 AM

Let the fun begin

QuikSilver

06-26-2005, 11:40 AM

Cant wait for the xtreme scores in the near future :toast:

Sampsa

06-26-2005, 11:41 AM

Thx for informing us sampsa...
i hope you wil be able to hit the same as shamino a nice 745 on the core :woot:
gl :toast:

745? 3DMark05 reports GPU speed around 40 MHz higher than it really is. But 700 MHz is still very nice :)

I'm pretty sure there are some insane numbers coming from Singapore :toast:

[XC] moddolicous

06-26-2005, 11:55 AM

Cant wait to see some numbers. Is someone going to break 40k in 3d03? Opp got like just under 35k with his watercooled, will jumping to LN2/cascade get an extra 5k points?

Zyklon5

06-26-2005, 11:59 AM

Nice results to begin with Sampsa :) i have one important question for you how come the SanDiego FX55 is working with LN2 ? no cold bug i presume ? I expected a bit more from a LN2 cooled SD didn't you ?

Kinc

06-26-2005, 12:33 PM

WTG! :toast:

You two must have the best LN2 wrist in the world :D

Waus-mod

06-26-2005, 12:34 PM

Hope to see some crazy mhz overthere... succes guys

Sampsa

06-26-2005, 12:54 PM

WTG! :toast:
You two must have the best LN2 wrist in the world :D

I have to admit that Kamu has much better LN2 wrist than me. Although today it was a bit shaky because he had a hangover :D

afireinside

06-26-2005, 12:59 PM

:lol:

Why didn't you take the GPU containes lower than -25C?

Have you tried disabling the internal clock test with riva tuner?

Sampsa

06-26-2005, 01:07 PM

:lol:

Why didn't you take the GPU containes lower than -25C?

Have you tried disabling the internal clock test with riva tuner?

"Guess" ?

Anyway, there still is a test when you raise clock speeds with Rivatuner and have to run it before you can apply them, right?

OPPAINTER

06-26-2005, 01:11 PM

"Guess" ?

Anyway, there still is a test when you raise clock speeds with Rivatuner and have to run it before you can apply them, right?
You can disable that test.

OPP

don_vercetti

06-26-2005, 01:12 PM

it's in the rivatuner poweruser settings, it's very easy to do.

nvidia/overclocking/disableinternalclocktest , iirc. Certainly something along that line, i'd check myself if i wasn't on a mac at the moment.

Sampsa

06-26-2005, 01:13 PM

You can disable that test.

OPP

Ah, thanks. Never had any problems with 6800 Ultras :)

HaLDoL

06-26-2005, 01:15 PM

Sampsa

06-26-2005, 01:22 PM

There is still a rivatuner test left if you disable the internal testing

Looks like it can be disabled from Power user options: Rivatuner 2.0 RC 15.5 \ Overclocking \ Global \ and set DisableClockTest to 1

I'll test it with voltage modifications, more LN2 already ordered :)

afireinside

06-26-2005, 01:27 PM

yes you have to disable it under overclocking \ global as well as overclocking \ nvidia I believe it is. You can also enable "enableperflevelforcing" under overclocking \ nvidia then set "force constant performance level: performance 3d" under the overclocking screen to disable the throttling :D Not sure if it works with cold throttling, though.

Playful_Buffalo

06-26-2005, 02:16 PM

yay :D

i look forward to results

Kriller

06-26-2005, 02:28 PM

more LN2 already ordered :)

Can't wait! :D

mesyn191

06-26-2005, 03:07 PM

Good to know the cold bug is fixed!

Apocalipsis

06-26-2005, 04:11 PM

Can you post a link for that bios Sampsa?

BadlyDrawnBoy

06-26-2005, 04:32 PM

I can't wait to see what you can do with these.

Kriller

06-26-2005, 04:43 PM

Can you post a link for that bios Sampsa?

OPP couldn't share it, I don't think Sampsa is allowed either...

metro.cl

06-26-2005, 05:24 PM

hope you can break some wr

massman

06-26-2005, 11:39 PM

good luck guys :D

Apocalipsis

06-26-2005, 11:52 PM

OPP couldn't share it, I don't think Sampsa is allowed either...

Wondering why not...then all of the mortals are condemned to suffer the cold bug? :stick:

Sampsa

06-27-2005, 01:05 AM

Wondering why not...then all of the mortals are condemned to suffer the cold bug? :stick:

Sorry, I can't share it. I think NVIDIA doesn't want to giveit to public just yet. It's only less than one week from launch.

JuanFlaiter

06-27-2005, 04:09 PM

Anybody has news on FM aproving 77.72?

charlie

06-27-2005, 04:58 PM

Wondering why not...then all of the mortals are condemned to suffer the cold bug? :stick:

If they allow the "public" to have the BIOS, then people will "turn off" their thermal controls and their partners may get tons of RMA'd overheated boards... logical, but it sucks!!

C

HiJon89

06-27-2005, 05:03 PM

If they allow the "public" to have the BIOS, then people will "turn off" their thermal controls and their partners may get tons of RMA'd overheated boards... logical, but it sucks!!

C
I think the few people who have it should be able to give it out to those who ask, that way only people who know what they're doing would get it. The hard part would be stopping someone from posting it on a site :(

zakelwe

06-27-2005, 05:05 PM

I think the few people who have it should be able to give it out to those who ask, that way only people who know what they're doing would get it. The hard part would be stopping someone from posting it on a site :(

I think you have just successfully argued against yourself there .. ;)

Regards

Andy

shadowing

06-27-2005, 06:03 PM

Hope you guys break some records! I can't imagine what scores it'll get with the cold bug finally gone for a bit.

craig588

06-27-2005, 06:22 PM

If you meet with one of the NV guys in person they are very willing to give you unofficial "hacked" bioses with whatever functions you want disabled under the condition you don't distribute them.

drcrawn

06-27-2005, 06:26 PM

Wondering why not...then all of the mortals are condemned to suffer the cold bug? :stick:

Nvidia is going backwards with this cold bug now at 35c, 6800 was at 25c. Since my 6800u is below 35c alot of the time, this would be a real problem with watercooling. It is unacceptable to have a video card cold thottle at 35c above freezing.

Trixxy

06-27-2005, 07:20 PM

Nvidia is going backwards with this cold bug now at 35c, 6800 was at 25c. Since my 6800u is below 35c alot of the time, this would be a real problem with watercooling. It is unacceptable to have a video card cold thottle at 35c above freezing.

I know, they'll probably start to throttle for some people in cold climates during the winter, even with the stock cooler. :)

craig588

06-27-2005, 07:27 PM

Wow, I just kinda skimmed this thread, but I just noticed that 35C throttles the stock cards. I can strap a SLK948 onto one of these with a tornado and get lower temps than that. That's a bad temp. 25C is kinda reasonable, but 35C makes it seem like they want ATI to win in the enthusiest market. (Which is unfortunate because I like NV much more than ATI)

afireinside

06-27-2005, 07:47 PM

If they allow the "public" to have the BIOS, then people will "turn off" their thermal controls and their partners may get tons of RMA'd overheated boards... logical, but it sucks!!

C

Well they can just say flashing the BIOS will void the warrenty... Besides, anyone who knows how to and is willing to flash a video card BIOS probably has the slightest clue what they are doing...

Onepagebook

06-27-2005, 10:00 PM

http://img133.echo.cx/img133/5783/bfg021nj.jpg

AQ3 Official (http://arc.aquamark3.com/arc/arc_view.php?run=1966862400)

http://img68.echo.cx/img68/2484/aq31221126ds.jpg

533/1448:

http://img68.echo.cx/img68/1109/1221122yg.jpg

http://img296.echo.cx/img296/5640/425325td.jpg

http://img64.echo.cx/img64/3869/151986un.jpg

I have serius problem running 3d03 nature..when CPU is 300x11

[XC] leviathan18

06-27-2005, 10:16 PM

^^ nice results opb really impressive using which of your fx 55 line up? why you dont try your old fx ??? maybe you can bench at higher speed?

JuanFlaiter

06-27-2005, 10:17 PM

OPB are you using Phase Change?

Onepagebook

06-27-2005, 10:17 PM

no, the problem is why I can run 3d05 @ 3300(300x11) but not for 3d03..?weird

Supertim0r

06-27-2005, 10:36 PM

no, the problem is why I can run 3d05 @ 3300(300x11) but not for 3d03..?weird

Are they loud ? or similar to 6800 in term of noise (heat too)
BTW congrats @ 3dmark scores ! Can't wait to see cards ... on phase change ?? :D

Sampsa

06-28-2005, 02:19 AM

Good job OPB :toast:

Unfortunately 3DMark05 with GeFroce 7800 GTX SLI is more system depending than graphics cards :(

Are they loud ? or similar to 6800 in term of noise (heat too)

Much quieter than 6800U

Kanavit

06-28-2005, 04:35 AM

OPB, that BFG 7800 GTX looks awesome man. nice scores

gundamit

06-28-2005, 05:24 AM

@OPB ... 533 core clock on Aquamark and 519 on 3Dmark '05? Good OC if thats air cooled. I think OPP used some Swiftech water blocks ...and an awesome CPU clock ...to crack 16K on '05. Just wondering what you're cooling plans are for your cards? :confused:

rilot

06-28-2005, 06:06 AM

For those of you with air or water: How are you guys hitting such high core speeds with your GTXs? Volt mods?

Mine is watercooled with a DD Maze4 but I can't bench without artifacts at anything over 495/1330. Temps never get above 48 degrees.

I'd welcome some tips.

perkam

06-28-2005, 06:19 AM

OPB JOINS THE FRAY :p: :D !!!

And to think we all thought he'd go on a vacation :( :cry:

Nice to have you back OPB, when we be seeing YOUR tri cascade action ?? :p:

Perkam

Waus-mod

06-28-2005, 06:19 AM

Congrats opb.. mayb you break the 2k1 wr if you go on!

Sampsa

06-28-2005, 06:28 AM

Compare URL with GeForce 7800 GTX (Stock cooling)

http://service.futuremark.com/compare?3dm05=953015

pinto

06-28-2005, 06:56 AM

Here is the max i could get without artefacts with innovatek 6800 modified waterblocks
I need more cpu's mhz!

http://img234.echo.cx/img234/5221/3dmark05150051zt.jpg (http://www.imageshack.us)

Revage

06-28-2005, 07:12 AM

does dd nv- fits on 7800gtx

rilot

06-28-2005, 07:47 AM

does dd nv- fits on 7800gtx

It will fit but the GTX has RAM on both sides of the card so you will only be cooling half of it.

Kanavit

06-28-2005, 08:25 AM

Compare URL with GeForce 7800 GTX (Stock cooling)

http://service.futuremark.com/compare?3dm05=953015
15k in 3dmark05 on stock cooling g7800gtx, is that for real? :eek: thats awesome! :woot:

Sampsa

06-28-2005, 10:24 AM

15k in 3dmark05 on stock cooling g7800gtx, is that for real? :eek: thats awesome! :woot:

15,6k to be exact but yes :)

mda96bjh

06-28-2005, 04:43 PM

Cornelious0_0

06-28-2005, 05:05 PM

How is everyone overclocking their SLI 7800's with the 77.72???

I have a serious bug with these.....whenever i attempt to overclock with coolbits it will not allow me to alter the clock speed at all....if i try to force it, it just throttles the cards.......This is a known issue in the release notes.

I had to revert to the 77.50 for overclocking functionality to work......

I wonder if that's just an issue with coolbits and the latest driver release. Have you tried turning off the clock testing and using Rivatuner or does it matter if you're directly using the coolbits interface?

Gibbo

06-28-2005, 05:07 PM

15,6k to be exact but yes :)

Thats an amazing result!!

I am managing just under 14k with an FX57 at 3GHz with 2 x 7800GTX running at 500/1380. :)

Your scoring an extra 1500 points than me, differences for me is that I am using the 77.50 drivers and the nVidia drivers for overclocking/tweaking.

If I go to the 77.72 drivers and use Rivatuner can I expect big gains or is it just the fact your CPU is clocked much higher your scoring 1500 more marks than me?

Any help or tips you can give would be appreciated to improve my scores. :)

P.S. Do you know the order to run the test in 3D Mark 2001 to get best result and does altering LOD amounts benefit 7800's for individual test and other 3D Marks? If so can you tell me what too use? :D
Thanks

Gibbo

Jort

06-28-2005, 05:10 PM

its due the bottlenecked cpu i think:)

if you crank up that cpu you will see the real power:)

edit: tried lowering your gfx speed allready, to see whats going on

Jort

06-28-2005, 05:34 PM

Thats an amazing result!!

I am managing just under 14k with an FX57 at 3GHz with 2 x 7800GTX running at 500/1380. :)

Your scoring an extra 1500 points than me, differences for me is that I am using the 77.50 drivers and the nVidia drivers for overclocking/tweaking.

If I go to the 77.72 drivers and use Rivatuner can I expect big gains or is it just the fact your CPU is clocked much higher your scoring 1500 more marks than me?

Any help or tips you can give would be appreciated to improve my scores. :)

P.S. Do you know the order to run the test in 3D Mark 2001 to get best result and does altering LOD amounts benefit 7800's for individual test and other 3D Marks? If so can you tell me what too use? :D
Thanks

Gibbo

don't use lod its lame:)

Sampsa

06-29-2005, 12:36 AM

If I go to the 77.72 drivers and use Rivatuner can I expect big gains or is it just the fact your CPU is clocked much higher your scoring 1500 more marks than me?

400 MHz more with Athlon 64 FX gives around 1000 points more. With GeForce 7800 GTX SLI 3DMark05 is very CPU intensive.

HaLDoL

06-29-2005, 03:20 AM

mda96bjh

06-29-2005, 03:49 AM

You already got an FX57 and 2 GTX's?
Of course altering LOD values helps a lot, what values you should use is up to you. Test different values for each test and note them. Same with the order of tests. Just try it.

That must be Gibbo from Overclockers.co.uk.....;)

he will have free access to all the latest kit....

By the way Gibbo, if u don't mind me saying u could improve customer support. I had a right job buying my 2 7800Gtx's....

Sampsa

06-29-2005, 12:37 PM

Voltage modifications done (VGPU and VMem). Unfortunately we encountered strange problem in SLI with Rivatuner. When performance was forced to 3D, other card didn't "join" the 3D Rendering and it's voltage didn't raise to 1,57V. When performance forcing was disabled voltaged raised but the system crashed everytime when GT1 started loading. I'll have to take more deep look into this. With single card everything seemed to work just great at +600/+1450.

don_vercetti

06-29-2005, 12:40 PM

you could try doing the clocks in the BIOS instead, i find rivatuner gets quite flaky when you reach high-ish speeds.

lupacchiotto

06-30-2005, 11:49 AM

hi sampsa..
you have notice cold bugs' problems with the fx57?
thankx

lupa

[XC] leviathan18

06-30-2005, 11:59 AM

how do you force 3d in riva tuner im crazy looking that option :$

HaLDoL

06-30-2005, 05:33 PM

how do you force 3d in riva tuner im crazy looking that option :$
it's in the overclocking tab, you can't miss it

http://www.vr-zone.com.sg/index.cgi?i=1582&s=3

Sampsa

07-01-2005, 03:01 AM

Ok, got my 2nd FX-57 today, it's 0513. The first one is 0512.

I'll be testing the cards again today and see if I can figure out why the other card didn't join the 3D rendering. I'll try with different mobo also.

lupacchiotto

07-01-2005, 05:00 AM

hi sampsa..
you have any cold bug's problems during the test with the fx57?
thank you

Sampsa

07-01-2005, 08:26 AM

I haven't studied FX-55 and FX-57 cold bug completely yet.

harleybro

07-01-2005, 08:38 AM

Voltage modifications done (VGPU and VMem).
Anyway to get pics of the mods or mod points? I should have a evga 7800gtx sitting on my porch when I get home. ;) No SLI but I'll see what I can do w/ a single card. :)

lupacchiotto

07-02-2005, 03:45 AM

I haven't studied FX-55 and FX-57 cold bug completely yet.

Ok, thank you man ;)
When you will finish your study you can say me?
Regards

zakelwe

07-04-2005, 10:49 PM

745? 3DMark05 reports GPU speed around 40 MHz higher than it really is. But 700 MHz is still very nice :)

I'm pretty sure there are some insane numbers coming from Singapore :toast:

There is an interesting thread on this here

http://www.beyond3d.com/forum/viewtopic.php?t=24615

looks like at least part of the card is running at 40Mhz higher than set ....

Regards

Andy

sysfailur

07-06-2005, 02:13 PM

Not really understanding the whole secrecy of the no-cold-bug BIOS... I'd personally love to get my hands on that--this is the first instance where there is a need for such a mod, so do you see what I'm getting at? People would do it either way. If they download a mod, or if the card comes like it standard.

But whatever.

c7775

07-06-2005, 05:04 PM

SO WHERE ARE THE RESULTS ??? lots of talk but no numbers

LowRun

07-06-2005, 05:49 PM

Right now those 7800 gtx seem far from trouble free, looks like there's some debugging left.

Sampsa

07-07-2005, 04:00 PM

SO WHERE ARE THE RESULTS ??? lots of talk but no numbers

Stock cooling results can be found here: http://www.muropaketti.com/3dmark/g70

and previous numbers can be found here: http://www.muropaketti.com/3dmark

Too bad if you think we are able to play with LN2 all day and night long. Numbers will be there when we are satisfied.

----

Running GeForce 7800 GTX in SLI with extreme cooling and VGPU mod is pretty tricky. Now that part is under control and cards are running fine at +600 / +1450 MHz. Next we need to get our CPU running atleast 3700 MHz to compete with OPP and Shamino.

[XC] leviathan18

07-07-2005, 04:27 PM

dont worry sampsa just bench we will wait all the time needed to see awesome results :toast:

happyhero

07-08-2005, 07:33 PM

so is there a fix for the cold bug. i get my card next week.

lupacchiotto

07-09-2005, 02:18 AM

don't worry samspa..the score will go ;)
you are two of the best overclockers in the world :D

happyhero

07-09-2005, 02:33 AM

don't worry samspa..the score will go ;)
you are two of the best overclockers in the world :Dyeah i think they will fix the cold bug.

Sampsa

07-09-2005, 03:41 AM

yeah i think they will fix the cold bug.

Well the cold bug is already fixed by NVIDIA. It needs a BIOS with all thermal mechanisms turned off. I can't share it to public.

Apocalipsis

07-09-2005, 04:22 AM

A bios with no cold-bug? Shamino said he has a bios with no-throttling but still it has cold-bug.

Throttling....cold-bug.....it seems very hard to get good results with those card on aggresive cooling.

Apocalipsis

07-09-2005, 04:24 AM

Well the cold bug is already fixed by NVIDIA. It needs a BIOS with all thermal mechanisms turned off. I can't share it to public.

Yeah, I understand that perfectly but instead of public access, can you email that bios file? :D

happyhero

07-09-2005, 04:45 AM

Yeah, I understand that perfectly but instead of public access, can you email that bios file? :Dyou can get the bios from, http://www.xtremesystems.org/forums/showthread.php?t=67249

kappa2001

07-09-2005, 04:45 AM

Yeah, I understand that perfectly but instead of public access, can you email that bios file? :D

that person would share it with the public :rolleyes:

Apocalipsis

07-09-2005, 10:16 AM

that person would share it with the public :rolleyes:

Well, I was referring to me, and if Sampsa say "dont share it", I will not do it, like him I have a GTX card with a second one coming and I play with LN2.