Sandy bridge OC Guide

[johnksss]

ok, so what does this mean in terms of out over clocking the x58 series?
running at 5 ghz..is this better than say a 975 running at 5 ghz?

[danielkza]

ok, so what does this mean in terms of out over clocking the x58 series?
running at 5 ghz..is this better than say a 975 running at 5 ghz?

The SBs have better IPC (0-20% depending on the application), and they should run much cooler and consume less power than an equivalently clocked Bloomfield.

[LardArse]

Thanks, testing now.

Can you check out the 'Extreme OV' option as well? Takes a long time to respond to +/- key stroke for enabling/disabling it.

response should be fixed in this version:

http://www.mediafire.com/?odkq8x3v7cxha3y

[@rne]

- TP67XE (F103): http://91.121.148.119/downloads/BIOS/P67AF103.BST

Works fine here

[_mat_]

I installed the new Bios but i cant overclock my CPU Higher (2500K D2 ES).

My 2500K ES D2 is awful as f***. Little buddy can't go over 5 GHz on my P8P67 Deluxe ... mostly i get "63" displayed and no boot. Memory controller seems to be weaker too. I tested two 2600K ES D2 so far and both are way better.

[johnksss]

dbl post

[johnksss]

The SBs have better IPC (0-20% depending on the application), and they should run much cooler and consume less power than an equivalently clocked Bloomfield.

your kidding right!
1: water chiller
2: phase change
3: 5 screens
4: two servers
5: 2 laptops
6: portable ac

[saaya]

awesome thread! vote for sticky in the intel section
the marketing stuff is a bit annoying, but oh well

[trans am]

there's gotta be a way to get past the sub zero issues.
Yeah its rad to get 5 ghz on 20c but there must be a way to trick the damn thing somehow. Does anyone have the Intel sandy whitepaper cpu pin diagram that shows all the points and what they do?

[OC Maximus]

Anyone have a silver conductive pen?

OCM

[Chri$ch]

Does anyone have the Intel sandy whitepaper cpu pin diagram that shows all the points and what they do?

Pin layout is different

Sandy Bridge


Clarkdale


techdocuments can you find at ark.intel.com, sandy bridge is listed

[trans am]

Pin layout is different

Sandy Bridge


Clarkdale


techdocuments can you find at ark.intel.com, sandy bridge is listed

thanks man. this is what I was looking for.
has anyone screwed around with a conductive pen yet? any trial and error?
Is anyone else working on figuring this thing out or want to contribute how to go about this? Do you think a pin mod will fix this issue or is it a lost cause?
Has anyone been in touch with Hicookie?

sxs112 nice guide. yeah I agree with saaya this is sticky material.

[Johnny87au]

thanks man. this is what I was looking for.
has anyone screwed around with a conductive pen yet? any trial and error?
Is anyone else working on figuring this thing out or want to contribute how to go about this? Do you think a pin mod will fix this issue or is it a lost cause?
Has anyone been in touch with Hicookie?

sxs112 nice guide. yeah I agree with saaya this is sticky material.

Worth a try mate..

[TiN_]

Chri$ch

Could not find any DS with pin outs you posted. Can you show, if it's public info?
There is no PEG RBIAS pin on SB package, which help on Clarks/Lynns 1156.

But there are other compensation pins, like PEG_ICOMPI, PEG_ICOMPO, PEG_RCOMPO.
Anyway, I'm almost sure that cold issues have different origin than was on 1156 CPU's. Maybe it's SA or ringbus wastes cold play, etc.

[_mat_]

Could not find any DS with pin outs you posted. Can you show, if it's public info?

I uplodaded the Sandy Bridge datasheet (volume 1) here. Have a look at 8, "Processor Pin and Signal Information".

[C-N]

I uplodaded the Sandy Bridge datasheet (volume 1) here. Have a look at 8, "Processor Pin and Signal Information".

Thanks, I was too lazy to go look for it!

[zalbard]

I uplodaded the Sandy Bridge datasheet (volume 1) here. Have a look at 8, "Processor Pin and Signal Information".

Thanks!
Do you have volume 2? Might have a proper voltage limit table in there.
I could only find this:



Looks like the only valid info is vCore, vDIMM and vPLL. Not sure what the hell vCCSA is...
Also, 1.52V max vCore means that SB can take much higher vCore than Gulftown and Clarkdale 24/7 (1.4V for them), means people can push these chips higher not worrying too much about them dying.

[kroks]

doc is up on intel site
http://www.intel.com/products/processor/corei7/#docs
http://download.intel.com/design/pro...hts/324642.pdf

[matose]

response should be fixed in this version:

http://www.mediafire.com/?odkq8x3v7cxha3y

This BIOS has the Overvoltage error fix?

What is the latest BIOS for M4E? 0066 or 0070?

Thanks!

[zalbard]

doc is up on intel site
http://www.intel.com/products/processor/corei7/#docs
http://download.intel.com/design/pro...hts/324642.pdf

Thank you! I will check them out a soon as I can.

Edit: browsed quickly, and it appears to be all the voltage limits info we have is already in my picture above.

[danielkza]

@zalbard:

That 1.52V is not an actual safe voltage, just the maximum voltage that can be represented in the new SVID encoding, with 5mv steps instead of the 6.25mv in older CPUs. You can confim that by checking the SVID table in section 7.4, that coincides exactly with the 0.25V - 1.52V range in the table you posted.

[Garrett]

For those who use the Sandy Bridge cpu's already... what kind of temps do you see on air?

[zalbard]

@zalbard:

That 1.52V is not an actual safe voltage, just the maximum voltage that can be represented in the new SVID encoding, with 5mv steps instead of the 6.25mv in older CPUs. You can confim that by checking the SVID table in section 7.4, that coincides exactly with the 0.25V - 1.52V range in the table you posted.

What's the max safe vCore, then? I could only find these tables, no tables similar to previous processor releases...

[danielkza]

What's the max safe vCore, then? I could only find these tables, no tables similar to previous processor releases...

I'm on the same boat. I looked for them quite a bit, but it seems Intel chose not to tell us what's the safe voltage actually is.

[deathelement]

Wait, so is 1.575 v the max safe voltage for RAM?