EVGA 750i FTW Overclock Thread

[Hardycore77]

Whats ur guys SPP temps? Idle mine is showing 54C, is that high or normal?

[Hardycore77]

TIP:

If you don't want that crappy NB fan blowing onto your vid card just take it off and replace it with an 80mm fan blowing upwards instead of down. I just tied it on there with two small strands of wire i stripped out of an old ethernet cable. I get good temps (32-36) and no extra crap blowin on my vid card.

edit: yes i know only half the fan fits over the heatsink but it seems to work great for me.

[NoodleGTS]

Hey anyone here with Q9550 at 4GHZ and what are your settings? 3.825 is not that hard but damn 4 GHZ is near impossible for some reason.

[tht-kid]

Originally Posted by Hardycore77

TIP:

If you don't want that crappy NB fan blowing onto your vid card just take it off and replace it with an 80mm fan blowing upwards instead of down. I just tied it on there with two small strands of wire i stripped out of an old ethernet cable. I get good temps (32-36) and no extra crap blowin on my vid card.

edit: yes i know only half the fan fits over the heatsink but it seems to work great for me.

Could you post a pic of this? finding it hard to work out how to do it, got a pair of 8800GT's in SLI and a Zalman 9700 CPU cooler so I don't get how to make it fit.

[Microsis]

Originally Posted by tht-kid

Could you post a pic of this? finding it hard to work out how to do it, got a pair of 8800GT's in SLI and a Zalman 9700 CPU cooler so I don't get how to make it fit.

Well i got a Tuniq Tower that is pretty big, no clearance problems:

(old pic)


*EDIT* an aftermarket NB 80mm fan should *just* fit with my HSF.

[xguntherc]

I have the 750i FTW with not a Q9550, but a Q9650 and 4.0 Ghz is easy as can be.. I've been running that since the first hour I installed the baby. haha

I've managed to hit 4.205 Ghz on mine, but that was the first night I had it. I've yet to try and go higher, but I'm sure I can. you should be able to hit 3.9 ghz or more with your Q9550 man.

is it the E0 stepping. also make sure your adding some fsb/vtt voltage.. thats important while clocking quads.. I'd put it to 1.4v
oh and the pencil mod might help you hit that mark. I never could get my old Q6700 to be 3.7 Ghz stable, until I did the pencil mod. then it was.

[tht-kid]

Originally Posted by Microsis

Well i got a Tuniq Tower that is pretty big, no clearance problems:

(old pic)


*EDIT* an aftermarket NB 80mm fan should *just* fit with my HSF.

I'll have a play around but im assuming you mean to put the fan between the graphics card and the NB?

[Microsis]

Originally Posted by tht-kid

I'll have a play around but im assuming you mean to put the fan between the graphics card and the NB?

You replace the EVGA fan that is on the NB.

[Kornowski]

Could somebody please explain the GTRF (probably wrong, lol) lanes, and how I should go about changing them?

I had it Windows stable, but two cores would fail Prime;

[GeforceGTS]

Give this a read

http://www.evga.com/forums/tm.asp?m=...55697;�

Long story short though

FOR QUAD CORES:
Lane 0 is for Core 0,1 Data Bus (die 0)
Lane 1 is for Core 2,3 Data Bus (die 1)
Lane 2 is for Core 0,1 Address Bus (die 0)
Lane 3 is for Core 2,3 Address Bus (die 1)

Boot into Windows (assuming you can boot into Windows) and start a prime95 torture test.
Watch the cores fail...
For quad cores:
When the failure is on core 0 or 1, increase GTLREF on lanes 0 and 2.
When the failure is on core 2 or 3, increase GTLREF on lanes 1 and 3.

Havn't really seen many people have much success with them, although they helped me get stable.