all vmod for all 6800

[Nosfer@tu]

chek your PM

You have been addet

BTW I reached 435 Mhz a few days, This is only with V-bios and astek whatercooling

HOPING for the 487½ Mhz = 50% Oc soon

[money2]

There. Just take the 100 K variabel regulator

http://www1.uk.conrad.com/scripts/wg...ad_area=241660

fu... the links didnt work...
i am not foxier then before ;-)
perhaps u can post another link or the article description...
sorry for that guys, but it is a really very new environment for me and i dont want to cook my card ^^

money

[Nosfer@tu]

http://www1.uk.conrad.com/scripts/wg...ad_area=241660

[Bilabong]

I find it very freaky that you solve the problem by undervolting your ram.

I agree, but i guess it could be explained by faulty overvolt protection? or another random power supply fault on the card?

Its not like i used to get freezes... the card shut itself off totally and gave me a blackscreen. When this happens Vddr and Vgpu fall to 0V and it can only be brought back to life by a hard reset.

I think there is something fishy in the overvolt protection... but i dunno which chip controlls it.

Any ideas greatly appreciated!

Bila
PS AFAIK in a later board revision, they changed a capacitor, inductor and the V regulator.... these cards dont suffer from the blackscreen "feature" apparently.

[Nosfer@tu]

I agree, but i guess it could be explained by faulty overvolt protection? or another random power supply fault on the card?

Its not like i used to get freezes... the card shut itself off totally and gave me a blackscreen. When this happens Vddr and Vgpu fall to 0V and it can only be brought back to life by a hard reset.

I think there is something fishy in the overvolt protection... but i dunno which chip controlls it.

Any ideas greatly appreciated!

Bila
PS AFAIK in a later board revision, they changed a capacitor, inductor and the V regulator.... these cards dont suffer from the blackscreen "feature" apparently.

So maybe you need to change those?

[kryptobs2000]

I wouldn't bother unless you got an extremely good overclocker, I'd rma it.

[Bilabong]

I tried that... Gainward ignored my repeated requests, then banned me from their forum. See this post for further details if your interested in Gainward "technical support" : http://forum.gainward.de/viewtopic.php?t=721

TBH id rather not go into it and keep the thread on topic... Alas, after some tinkering i managed to fix the card with lots of help from Zadah.

[stealthbomber]

It appears the posts from Zadah on that forum suggests that Gainward deviated slightly on the nVidia reference design of the card which is the cause of the problem?

[kryptobs2000]

Call up gainward technical support, ask to speak to a manager and just yell at em, and tell em the situation and how the bs'd you on the forum

[goatman]

I have a 6800 GTO PCI-E - on the same pcb ast the GT and ultra.
u guys want hq pics? pics?
i'm greatly in need of a ram vmod!

[Del Gro Badeu]

sure we want hq pics !!

[Nosfer@tu]

I would like to remind peapol that It migth be a good idear to set Vagp to 1.55 Insted 1.5

I started to se white dods and geet spontanius reboots

before i start modding like a Psyko I would love to geet som more fedback regarding results????

Also i have a littel picture you migth want to tjek out, Adding profiles on the marked areas gave me a bost of 15 Mhz on core.

So before i couldent bench at 425 Mhz, but 423 was okay.

Now I can run 438 Mhz

Just cant Oc my ram more then 11 mhz because I only have a standard astek whater head Did 880 mhz on air thoug

[Del Gro Badeu]

no problem with Vagp ^^, i'm currently running it @1.6 ...if i run it lower, i've got some CPU overclocking issues : /

[goatman]

ok, here's some pics of my PCI-E 6800 GTO. this card is on the 6800u/gt PCI-E pcb.
http://oc-lair.com/pub/6800gtopcix.rar/

[Del Gro Badeu]

404

[Nosfer@tu]

http://oc-lair.com/pub/6800gtopcix.rar

http://oc-lair.com/pub/

[Nosfer@tu]

I belive its a
ISL
6634CV
L0427HBNG

And on IMG_0030
I se a 14 Pin

43CHICK
ACTOS

Hope it helps!

Nosfer@tu of denmark

[goatman]

should i google the datasheet for those?

edit: sorry, my bad for putting the / in

[goatman]

there has got to be a connection here.
here's the same chip on my board, and the same chip vr-zone vmodded

i think the vmod would be easy but to find a measuring point would definetly be the hardest

[goatman]

i did as best as i could to trace the measuring point back to the chip for the 6800u AGP vmod from this pic:
http://www.ixbt.com/video2/images/nv...-scan-back.jpg
I think it's 4th pin from the top right of the IC. I measured it and got 1.043V so that can't be it.

[goatman]

it could also be pin 5 from the top right.
i tried that, i got 1.173V.
we're looking for 1.3-1.4 or so, right?

[goatman]

I also measured pin 5 on the top right when running 3dmark03.
i measured 1.155V
pin4 from the right didn't change voltage

[Del Gro Badeu]

i will take a look tomorow, i'm a bit sleepy actually ( just come back from a long night party )

but if it's the same chip as one on the ultra, the mod will be nearly the same for this one too

[Nosfer@tu]

Try to Look for TPxx They are read points!

I would say that you should have the data sheet. But lest se What Del Gro Badeu comes up with when he wakes up :p

[Del Gro Badeu]

^^ i just awaken :p

i've somethings to do before, and i will have a look during the night i think