GA-X58A-UD5 (rev. 1.0)

[wazza300]

i only asked because i dont remember seeing it in my bios,maybe its in newer bios's or its only for the ex58a mb's,what have you tried regarding qpi/vtt voltages?

[Kaishi]

Wazza300: I just tried out following your template. I managed to get to the Welcome screen before BSOD, but, that's further than I've ever gotten @ 4.2 GHz!! I probably just need more vCore, as I hear it takes some power to get a 930 up there...

The ErP setting is under Power Control, not under M.I.T.

Rearding QPI / VTT, did you see the template I posted? I can post it again if you want, but it's already in this thread.

I'm reworking my OC, targetting 4.2, and using the dvid function rather than higher vCore + LLC.

[wazza300]

just add two or three click up on dvid +0.0850v or maybe 0.1200v? start with +0.0750v and just add two clicks up at a time,
if u have 930 chip its better to use a 21x cpu multi and disable intel turbo boost so 21x200,start at 1.35000v for qpi/vtt

[Kaishi]

just add two or three click up on dvid +0.0850v or maybe 0.1200v? start with +0.0750v and just add two clicks up at a time,
if u have 930 chip its better to use a 21x cpu multi and disable intel turbo boost so 21x200,start at 1.35000v for qpi/vtt

I feel like this is a fair amount higher than I ever went when I was on BIOS F5, at 4.01 GHz (191x21). I think I'm comfortable to try it, but I don't want to hurt anything. I'm using a Noctua NH-D14 cooler, which is absolutely insane <3

[wazza300]

you need to look at what "normal" sets the cpu voltage at,then add the extra voltage through dvid which is only used at load if you have all the c-states enabled in the advanced cpu features except for c1e(use balanced)in win7 or (minimum hardware)in xp power saving options,that way it will throttle at idle but not at load,same thing for cpu voltages,for me with an average heatsink i get 36-39c idle core temps and 77-79c load core temps

you might need anything from 1.25v-1.35v for cpu voltage maybe more depends on your chip

[Kaishi]

Currently benching at 4.01 GHz again, and looking good so far. Temps have hit 72C for an instant on one core but are hovering just below 70C on average. I'm not using a "big air" case, so I can't expect to get really high, but I do have good airflow...

EDIT: looks like I'm 100% stable at 4.01 GHz again. One thing I had forgotten to do during my initial testing was to open the front door to my case and crank up the exhaust fans.

In case anyone is curious, I'm running an Antec P183 with a CPX-850 right now. Whole thing is on a Cyberpower 800+ watt 1350vA UPS, and draws about 450w peak CPU, haven't checked CPU + GPU at peak yet...

[wazza300]

you should be able to hit 4.2ghz stable,i cant clock any higher and fully stress test due to air cooling,highest ive been is 21x215 and run a few bench programs but no way i could prime95 due to excessive temps,71c at 4ghz is good you could go higher if you keep playing with voltages and testing,my cooler isnt high end like a noctua or megahalems

[Kaishi]

I don't think I care to get up to that range. 4.0 GHz was always good in the past. I wanted to get to 4.2 just for the look of it, to see that huge number :) but I never managed. It doesn't make much difference though.

EDIT: I've managed to get 100% stable at 4.01 GHz (191x21) which was my old overclock. I had increased voltages to try to reach 4.20 (200x21) GHz, and when I bumped back to 4.01, I left them for the sake of stability. As I creep them back, I am getting a better picture for what my core needs.

My VID is about 1.256V. I know I need about 1.300V to get 4.01 GHz. Instead of using LLC like I used to, now I'm DVID to bring my VCORE up to slightly above 1.300V just in case the CPU wants some extra juice.

My next project will be maximizing the performance of the QPI, VTT, MCH and ICH. I've been playing around with RAM timings too:
@ 1528 9-9-9-24 1N, 1.54V I am stable, zero memory errors.
@ 1600 9-9-9-24 1N, 1.6V I think I am stable too but my CPU can't handle the 200 MHz FSB.
@ 1528 7-7-7-20 1N 1.6V I get memory errors but no bluescreens or other windows problems. Not using this setting.
@ 1528 8-8-8-24 1N 1.62V I still get memory errors but no bluescreens....
so I'm back down to the first one, and now I'm creeping my VRAM back down toward 1.50V to see if I can get there.

If anyone has any advice on better RAM timings I could try, I'm open to suggestion.

[Lsdmeasap]

I ran my first stability check last night... system lasted about 30 or 40 seconds before hard-lock. It used to be 100% stable and could handle the test indefinitely.

Is there a solid guide for step-by-step overclocking here? I still know my VID from the last time, and I know the minimum voltage I need, but I want to roll-back a few steps and figure out what I really need to make it work. just don't want to fry anything in the process.

Yes there is guides here if you still need more help, but looks like you are making some good progress already!
http://forums.tweaktown.com/gigabyte...56-1366-a.html

i only asked because i dont remember seeing it in my bios,maybe its in newer bios's or its only for the ex58a mb's,what have you tried regarding qpi/vtt voltages?

Ya it's in the power page, and may be called EuP or ErP in your BIOS, depending on the BIOS version

[Kaishi]

Yes there is guides here if you still need more help, but looks like you are making some good progress already!
http://forums.tweaktown.com/gigabyte...56-1366-a.html

Thanks for the help. I think I've settled on 4.01 GHz, as I'm having trouble keeping my thermals where I like them otherwise. In fact, at peak stress, even 4.01 GHz is causing me to hit 71C... but only for an instant each time. I'm not too worried about it.