nateman_doo

VERY nice guide!!  i will certainly try your methods when I finish my RMA process. 

trs32505

So far this guide has helped me more than I thought it would. I have a feeling I've got a golden mobo and cpu.

Just a hint of what I mean. Right now I'm at 227 BCLK with a VTT of +150, vdimm at 1.65 with mem speed at 1810 9,9,9,1T, cpu at 3.39ghz w/vcore at 1.1 w/vdroop. Running LinX right now 3gig mem use running at 119.095 sec and 44.833 GFlops. PCIE is at 102.

What's nice is I don't think I'm finished with what this puppy can really do at low voltages.

All I can say is good show linux. Good show.

trs32505 

So far this guide has helped me more than I thought it would. I have a feeling I've got a golden mobo and cpu. 

Just a hint of what I mean. Right now I'm at 227 BCLK with a VTT of +150, vdimm at 1.65 with mem speed at 1810 9,9,9,1T, cpu at 3.39ghz w/vcore at 1.1 w/vdroop. Running LinX right now 3gig mem use running at 119.095 sec and 44.833 GFlops. PCIE is at 102. 

What's nice is I don't think I'm finished with what this puppy can really do at low voltages. 

All I can say is good show linux. Good show. 

trs32505

Well. Decided to level off at 234 (233.43 actual) BCLK. Now moving the multiplier up. Will post final out come later. So far tho, so good.

AceBaran

**Update

Best i can do atm

fairchildbrad

Excellent guide.  I do have an issue I would like to get some opinions on.  My VRM temps seem to be quite high.  I stopped the QPI OC process at 200 when I noticed the VRM temps in the upper 80s so I added 2 40mm fans blowing on the Vreg heatsink which brought the temps down some.  That is as far as I took the QPI and I just finished the overclock.  When I run Prime95, my VRM temps idle at 74 and run 90-93 under load (I don't like them this high so I don't run it for long).  My question is that is this normal and what can I do to reduce the temps other than reduce the clock/voltage?  Thanks in advance.

E758
i7 920 D0

linuxrouter

The VReg temps do run hot on the E758. The two things I have found that drive up the VReg temps include higher Uncore frequency and higher PWM frequency. If you have not already done so, I would try Uncore at 16x and PWM at 800 KHz. The other option would be to replace the TIM for the VReg heatsink. The contact might not be the best which can also drive up your temps.

jdookie
Okay, followed the guide, and managed to get all the way up to 225 bclk, then hit a wall and couldn't really go any farther without some kind of major change, so I'm just going to say, for now, that 225 is my max bclk.

Thing is, 225 wasn't giving me the cpu/memory ratio that i wanted, so I backed it down a bit to 215. With everything still set very low, other than bclk, I can run and pass LinX all day long.

Next step was the memory. I have 1600MHz Mushkin Redline ram, and, using a 2:8 ratio, that puts me at 1715MHz. At stock speed, timings are 6-7-6-18 72, so I loosened these up to 7-8-7-20 110. Just like before, I can run LinX all day without errors.

The problem comes in when I start increasing the multi. I'm trying to get the highest clock speed as possible, obviously, but at 215x20 (215x21 with turbo) I get errors in Linx around the 50 minute mark.

I've increased Vcore and it doesn't seem to help. I'm already at a fairly high level of Vcore, so I don't feel too comfortable pushing it much farther, even though I still have a little room left with temps. My hottest core, under full load, is 82C.

Here's my template. Any suggestions on how to get rid of the 50 minute error??

AceBaran

Edit: I have dominator GT 2000 cl7 memory running them @ 1744 8-8-8-20 1T timings.. now i want to tithen the timings to lets say 7-7-7-20

Isnt the only thing i have to adjust the VDimm volt ?