R3E + 3x ENGTX480 overclock help please

[lysaer]

Hey all, new here, been overclocking and messing with computers for years.

 

trying to get my Tri setup to overclock a little more, would like to break the 900 barrier. The most I can get right now is

 

core 875

mem 1945

voltage 1.2

 

whenever I go over 875 i get a display has stopped responding error.

 

currently I have IOH/ICH @ 1.36/1.59v for both NB/SB, Everything is watercooled on independent loops, CPU, GPU's and NB/SB.

 

GPU temps max out at 52c under full load, CPU 52c and NB/SB 39c.

 

I have the unlocked bios on my cards allowing my voltage to go to a maximum of 1213 as displayed in afterburner and even with the voltage maxed I can't get past 875mhz.

 

I've tried dropping the mem down to stock and pushing the core up but still no luck.

 

Should i consider getting a bios to allow me to go higher than 1213 ?

[lysaer]

Well I've done some reading and it looks like I might go ahead and try doing the cap mod, anyone know roughly what sort of gains I might see at 2560x1600 res ? also is the cap mod something that can be run on a daily usage gaming system ?

[Massman]

Have you tested all cards separately?

 

In 3-Way SLI, the maximum stable frequency is determined by the worst of all three cards. It's possible that one card just doesn't want to do 900MHz.

[lysaer]

Have you tested all cards separately?

 

In 3-Way SLI, the maximum stable frequency is determined by the worst of all three cards. It's possible that one card just doesn't want to do 900MHz.

 

Hmm, I will give that a go today, since i can just disable each PCI-E slot on the R3E