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Alright so I decompressed my BIOS with PhoenixTool from MyDigitalLife forum. Now what, how can I tell which of these files is the vBIOS? Thanks for the guidance!

The voltage options are locked on this Ivy Bridge laptop. I was hoping to unlock them through modifying the BIOS?

Hey guys, So about a year ago I tried this and even though I was able to extract the bios ME region and modify it, it didn't unlock anything on my UX32VD with Intel HM76 board. Is there anything I can modify in the bios image to allow some undervolting? The CPU just gets way too hot when also running the dedicated GPU on this laptop. Attached is the ME region I extracted a year ago. ME Region.zip

Thanks. I'll work on extracting the vbios for now. I know I decompressed the entire bios before trying to unlock the CPU. So has no one has been able to edit a vbios for a Fermi mobile card? That's not good news!

Hey I know I'm digging this up from 2 years ago, but I'm looking for a modded nVidia 620m vbios. I'm hoping to undervolt it as this card just gets too damn hot in my Asus UX32VD. Did you ever have a custom vbios for it? The only "trick" I've managed so far is to disable nVidia PowerMizer with PowerMizer Manager app, set it in to low performance mode, and then up the clocks in that mode back to stock clocks. This allow me to run at 0.925v instead of 0.975v but it's STILL really hot. It'll reach 85c+ under load at 24c ambient. This is in combination with an i7 3517U with eliminated TDP for turbo power boost with Intel XTU. The problem is they share a heat pipe and heat eac hother up. Would anyone be so kind as to build me a modded vbios or point me to some documentation on doing this myself? I can post the original. Thanks!

So should I try this on my ASUS UX32VD with HM76 chipset? Could it cause something bad?

Thanks! Yea then I'm not even interested in changing BCLK, I know in the past when I've tried increasing FSB on other computers with PCI-E SATA harddrives, it would lock up very very fast. If I could unlock the multipliers, that'd be great. Were you able to do that?

Interesting, I opened up the ME region only .bin I posted earlier and you are correct, the changed bits aren't there (I guess the "Int" folder is no good). However, they are if I open up the full image, which I flashed. I also re-dumped the current FW and opened the image in fitc and the bits are changed. Here is my newly dumped .bin after the changes: http://s000.tinyupload.com/?file_id=61252391357967251527 I'm really just doing this to see if it's possible, not so much out of need, this is an Ultrabook after all. I would love to unlock the multipliers. The BCLK would also overclock other components right?

Well I built and flashed the entire FW (8mB). I figured it wasn't necessary to change the number of flash devices if I did that? I did indeed do the flashing in Windows.

Seriously!? The modified one I pulled from the "Int" (Intermediate) build folder. It creates these when building the full .bin image which I flashed.

Yea I guess so. Here's my original and modified ME regions (in .zip). I just realized the modified one is much larger. I took these from the files FITC first created for the original, and from the Int folder for the new one. ME Region - modified.zip ME Region.zip

So I flashed my modified firmware (just built and flashed the full thing), nothing additional unlocked in XTU or ThrottleStop that I can tell. In fact, I could have sworn that in XTU, I previously could see "Reference clock - 100Mhz" greyed out but now I can't see it at all. I tried attaching my original and modified ME regions here but it says invalid file. Tried both .bin and .rar.

You are correct. I tried drivers 347.88 just to check and the same thing happens. I can choose the clocks to apply, but they don't actually apply. What else should I check? This is on a Asus UX32VD running Windows 8.1 Pro.

It always shows 625MHz in Afterburner when memory has also ramped up to 900MHz under load, no matter what I set it to. Memory changes on the other hand do take effect. Sent from my Nexus 5

I just did that. Completely wiped with DDU, re-installed drivers 350.12, core clock selection still doesn't have an effect. Tried both with MSI Afterburner and Nvidia Inspector. I.e. I can set the clock, but when checking the actual clocks in Nvidia control panel "system information", the GPU clock is at 625. The memory clock overclocks fine and is reported as such. I initially realized there's a problem when I noticed 3DMark11 was reporting my GPU core clock as stock, and the memory clock as overclocked.

This: Nvidia clockblock: vBIOS (unblocked in 347.88, reblocked in 350.12) | NotebookReview And it seems to be true, core clock changes don't take effect.

I've searched and searched but can't find an unlocked vBios for the NVIDIA 620m, which came in my Asus UX32VD. Is anyone willing to unlock this for me? I can post the original vbios if needed. I mostly need this because on the latest drivers, 350.12, the core clock overclocking has been blocked (again). Thanks!

Wow that's pretty unlucky! Well I'll give it a shot and see if it really is our chipset that's the problem. The OP hasn't said exactly which lines to change. I opened his modded ME in fitc and the lines I changed (posted above) seem to be the only ones he changed, but I'm not sure. Could you verify?

Damn, yea I noticed that you were having problems. Would it hurt for me to try? Are the changes I have made sufficient? Were you trying something else when you bricked it?

Alright this is where I'm at with my Asus UX32VD, please help me proceed. I've made the FW dump with fptw64.exe. I opened it up in FITC. It's detected as "Intel 7 Series Chipset / Intel HM76 - Mobile". Someone on the previous page was having issues with a HM76 chipset? I changed the following bits as I think this is all you changed, and this is what I saw recommended in the Intel PDF regarding overclocking in the ME section of the firmware. ICC Data\ICC Profile 0\FCIM/BTM Specific ICC Registers: Clock Source Select: from 0x00011A33 to 0x00011A34 SRC Source Select: from 0x00033733 to 0x00133744 PLL Reference Clock Select: from 0x00088CBF to 0x000A8CBE Divider Enable: from 0x000005EB to 0x000005FF SSC Control: from 0x00010000 to 0x00000000 ICC Data\ICC Profile 0\ICC Registers: PI12BiasParms: from 0x08880888 to 0x00000888 Can you please verify this is correct? I really don't wanna brick this laptop. Also, how do I build just this portion? I'm thinking: Build, build settings, check "build compact image". Any other settings I need to change?

Hi, thanks for this program! I am trying to overclock my old Inspiron 9300 just for fun. I have found my PLL on the motherboard, it's ICS954201. Using SetFSB, the PCI slider is disabled for this PLL. This results in the overclock quickly becoming unstable after only 1-2MHZ FSB increase. It looks like the HDD locks up. If I create my own LUT file, do you think I'll be able to increase FSB and specify the stock PCI-E clock?

Just for kicks, I'd like to try this on an old old Dell Inspiron 9300. It has a Pentium-M 1.86Ghz 533MHz FSB. I tried installing XTU but it says hardware not supported. What would I use to actually change the CPU BCLK once I unlock the bios? I don't want to change the FSB only as that quickly becomes unstable due to other components.

Sweet! I'll have to do this very very carefully. If anyone has done this on a Asus Zenbook (UX31 or UX32) please chime in!

Hi guys. I came across this thread referenced from ThrottleStop thread. I carefully read the first post, but before I even begin, would this work at all for an ultra low voltage CPU? I have a 3517U in my UX32VD. So far I've been able to increase the TDP limits with ThrottleStop which allows full boost indefinitely. That's nice, but a small overclock would be nice Cheers.