GTX285 various mods.. which may work for GTX260/280/295 also

[Leeghoofd]

Cryptik do you recall the stock volts on these cards, I'm reviewing the Asus Matrix card and running into some issues here as my EVGA was also voltmodded along time ago... Plus I ain't gonna remove the voltmod...

Was stock GPU voltage 1.16 on the vanilla cards ( so not the SC or SSC editions)

[CryptiK]

Yeah, stock EVGA vanilla vgpu is 1.16v

[Leeghoofd]

ta, know I hope sergio can measure his BFG card for me...

[nkresho]

Its just pushing it too hard for the voltage, frame rates drop giving you a lower score. Give it some more voltage if you want to run it higher.

Figured it out, mostly. I ran vantage instead of '06 and it was flawless up to 775-1765-1400 (scored a 17407). Then I ran the furry donut for an hour and it was stable. Last, I ran crysis benchmark for 50 loops on very high with 8xaa, and it was fine.

I kept the ram lower and that may have been my issue. More testing another day.



Also, my ram voltage stayed the same when I bridged 2 only. My loaded gpu voltage went from 1.16 to 1.21, but the ram stayed at 2.14. I'm happy with the mod. I may not even bridge any more.

[CryptiK]

ta, know I hope sergio can measure his BFG card for me...

He's got a DMM, I should imagine it would be no trouble.

Figured it out, mostly. I ran vantage instead of '06 and it was flawless up to 775-1765-1400 (scored a 17407). Then I ran the furry donut for an hour and it was stable. Last, I ran crysis benchmark for 50 loops on very high with 8xaa, and it was fine.

I kept the ram lower and that may have been my issue. More testing another day.



Also, my ram voltage stayed the same when I bridged 2 only. My loaded gpu voltage went from 1.16 to 1.21, but the ram stayed at 2.14. I'm happy with the mod. I may not even bridge any more.

Nice 24/7 clocks, good you got it figured out. I guess some cards behave differently for some reason when i comes to the ram voltage.

[andressergio]

ta, know I hope sergio can measure his BFG card for me...

leeg. cryptik i did the measures on my BFG GTX285 H2O OC wich comes stock clocks:

729/1674/1390 and perfect stable till 771/1800/1512

IDLE vGPU = 1,05 / LOAD 1,1578

IDLE vMEM = 2,1 / LOAD 2,1

Seems this card clocks awesome on normal volts.

This weekend i will mod, here are the vids on my card



as you can see

1/3/11 are bridged the rest no, should i bridge 2 and 4 ?

Cheers
Sergio

[andressergio]

Ok boys i did the mod,

vid 2 leads me to 1,2vgpu / 2,11 mem loaded so i went to vid 4 and gave me

1,23vgpu loaded / 2,11 mem

i got now 1/2/3/4/11 bridged i dont know wich increases vmem

so far i went on W7x64 on Sacuary for this and played crysis very nice clocks

couldn pump much more on CPU as i have 25,7C in my room damn hot tomorrow i will do some benches under AC




Cheers
Sergio

[andressergio]

Damn heat didnt make bench at 4750, so far i got this with the volt mod on lower mhz



Cheers all
Sergio

[FedericoUY]

Any info on volt mod on this PCB bro ?

Have you get it?

Evga's new PCB is like my MSI 285 superpipe 1gb. Need info about vmod on this PCB. Anyone?

[andressergio]

Have you get it?

Evga's new PCB is like my MSI 285 superpipe 1gb. Need info about vmod on this PCB. Anyone?

Hey guys anyone can help my mate from my country his PCB is very different from us

Cheers all
Sergio

[Boulard83]

@ andressergio

I get 21k with cpu @ 4.08 and GPU stock 694.

Quite a jump to 4.5cpu and 800 gpu !

[chispy]

Have you get it?

Evga's new PCB is like my MSI 285 superpipe 1gb. Need info about vmod on this PCB. Anyone?

Hola ,here it is, read last 2 pages , enjoy it and good luck.
Suerte.
http://www.xtremesystems.org/forums/...=220607&page=3

chispy.

[andressergio]

@ andressergio

I get 21k with cpu @ 4.08 and GPU stock 694.

Quite a jump to 4.5cpu and 800 gpu !

Thanks mate ! Thats on XP32 on 4680Mhz

the mod is working fine thanks to all

This is what i get in W7x64 7600 RTM at 4608CPU



Cheers
Sergio

[andressergio]

Hola ,here it is, read last 2 pages , enjoy it and good luck.
Suerte.
http://www.xtremesystems.org/forums/...=220607&page=3

chispy.

Gracias Chispy !

Thank you for helping ma mate Federico

[chispy]

Gracias Chispy !

Thank you for helping ma mate Federico

De nada , glad to help a fellow Latino .
Buen Dia.

chispy.

[FedericoUY]

De nada , glad to help a fellow Latino .
Buen Dia.

chispy.

Thank you very much for your help. The guide is very clear, so I'll try to do it.
Sergio, gracias como siempre. Cheers.

[andressergio]

Thank you very much for your help. The guide is very clear, so I'll try to do it.
Sergio, gracias como siempre. Cheers.

Glad to help mate carefull on that mod as its seems harder maybe you do it with ya electronics fella

Cheers
Sergio

[CryptiK]

Nice work as always Andressergio

[andressergio]

Nice work as always Andressergio

Thanks mate

[andressergio]

Broke my own record now with the 2/4 vids mod



Cheers
Sergio

[EL RICHARDO]

I have now a Asus 285 TOP with the uP6208AM / VGK939 voltage controller like the one on this page: http://www.syndrome-oc.net/articles....page=4&lang=en I know that pin 9 is the one to use. Anybody has a clue what pot value should I use? Many thank's.

[NapalmV5]

^ just how tight is OCP @ 285/uP6208..

ocp removed/vgpu @ 1.4-1.5 and the 285s could do ~900 core on air easy

ocp is just too tight on 285.. then again i guess that was the point/purpose

[NapalmV5]

285 1gb/2gb ver1.1 OCP mod

dont thank me.. thanks goes to crotale for the ver1.0 ocp mod

pic by chispy



i used a 1k resistor and gained a boat load of clocks @ stock/air cooling on the 2gb evga ftw

good luck!!


ill post results shortly

[NapalmV5]

ocp mod results

ocp: only mod
vgpu: default
vmem: default
cooling: stock/air

clocks gained from ocp mod
core: 18mhz
shader: 36mhz
memory: 162mhz

the 1250mhz mem is actually 1242mhz



if i got time today ill try vgpu mod

[EL RICHARDO]

^ just how tight is OCP @ 285/uP6208..

ocp removed/vgpu @ 1.4-1.5 and the 285s could do ~900 core on air easy

ocp is just too tight on 285.. then again i guess that was the point/purpose

How can I measure my 285/uP6208 OCP resistance, NapalmV5? Is between IMAX2 pin and GND?