anyone undervolted the 5650m?

Hey there, On my quest to supercool my laptop, I came across undervolting which seems to have its pros and cons.

I was wondering has anyone undervolted the 5650m? and how would I go about doing it, as I've searched google and the forums and can't find a tutorial anywheres, it wouldn't be a major undervolt.

I've heard of people undervolting too much and blind flashing which I don't want to get into, so I thought I'd test the voltage with software max overclocked speeds and if it crashes then I know stock clocks will be no problem as once the laptop restarts, the vbios will take over and it'll startup ok, please correct me if I'm wrong.

any help would be greatly appreciated.

 

Extract your bios, then extract the video bios within that, edit it using RBE (setting the voltage), re-insert and package up the bios. Flash it to your system.

 

I tried to make a backup using gpu-z but it said it wasn't readable, are there any other programs that'll work? winflash doesn't like it either.

 

I couldn't find anything to extract the bios or vbios. any ideas?

 

Yes, download the BIOS from the manufacturer. Usually it's in an executable form. Extract all the files and look for the BIOS file (you can recognize it by the extensions, it depends on the BIOS manufacturer... .fd, .rom, etc...)
Then use a tool which works with your BIOS type to search for the VBIOS, as Meaker said.

 

I tried to undervolt mine a coupla months ago... HP locked up the BIOS is all I can say.

 

I tried using 7zip to extract the downloaded exe as well and it didn't work, even tried -writehdrfile, that didn't work either. I think my BIOS may have been locked as well. I've also tried universal extractor which didn't work either.

I forgot to mention its a dell n5010, if that helps any

EDIT: if anyone wants to have a crack at it, it can be found here

 

managed to open the exe with resource hacker but, I have no idea what to look at change or otherwise, its all gibberish

 

What type of Bios is it? Award? Phoenix?

 

its an AMI, just managed to get it extracted there, into a .rom and .hdr file, I was using a hyphen when I should've used a forward slash when using the writehdrfile and writeromfile commands, but every website said use a hyphen, so now I've got them extracted.

 

Good. I don't have much experience with AMI, but on my Pheonix the VGA bios was 60 KB and called "OPROM01.ROM". I don't know if your's will be the same, but I wish you luck with your BIOS. (After you get the VGA BIOS you can open it up in RBE and change what you want. Then recompile it, and flash... if you dare)

 

Ok,
1. This thread would fit better into the graphics section.
2. seeker_moc is one of us who knows how to do this .
3. I also know how to do this and i will post a guide tomorrow because its now too laaaate

 

Cheers Alxlbf2, your a life saver, looking forward to trying it out

thanks again, Alex

 

Here you go:

1. Download RBE 1.28 (RadeonBIOSEditor)
2. Download PhoenixSLICTool 1.90
3. Download YOUR BIOS
4. Create a new folder and put all those programms ( unzipped) and the BIOS
in it.
5. Launch Phoenix Tool and point it your BIOSupdate.exe with it.
6. It will show you the recovery filename and some header information. Just click ok.
7. Now you click on Advanced and select:
NO SLIC
and
ALLOW USER TO MODIFY OTHER MODULES
now you can click done.
8. Press go
9. You will get the message that you can make now changes in the dump folder. DO NOT CLOSE THIS WINDOW!
10. Open RBE and search in the dump folder for ca. 60KB big .rom files and try to open them.
11. When you have found the right file you can click on CLOCK Settings in RBE and apply new voltages and clocks.
12. Save the new VGABIOS.rom file with clicking on SAVE Bios and pointing the BIOS.rom file wich you have opened (DO NOT RENAME THE vga_BIOS.rom).
13. Go back to Phoenix Tool and click OK.
14. It should pack the new BIOS now and will create a new BIOS file with _SLIC @ the end.
15. Find out how to flash the file and youre done.

I never worked with AMI BIOS so i cant say how to flash them. Google might help you.

 

Hey alxlbf2, thanks for the guide. I followed the instructions up to step 10 and couldn't find any 60kb big files. I didn't know what you meant by the 'ca.' bit but I found two files starting with CA and they still didn't work. RBE didn't recognize them as BIOS files.

one file detected an old ATI bios and said I should use RaBIT. I haven't went through all the files yet because there's absolutely millions of them, and I never got the message that says I can now make changes to the BIOS. I get a message saying SLIC performed successfully and thats it.

cheers Alex

 

Ca. = circa, so check all the files which are approximately 60KB. Sort the file by size and you can rule out a lot of them.

 

I got down to the 10k files starting from the top, and the only files that came back anything was roughly a 200kb big file.

I tried rabit and it says its missing 0xAA55 bios signature or zero size rom image. Could the BIOS be blocked?

edit: found this posted in a thread in 2003;
The Exe-file is just a self-extracting/self-executing file that contains both the AwdFlash'er and the S018 BIOS. I assume that the zero-sized ROM-file gets created because you tried to execute the Exe from Windows, right? Well, it is a DOS-program, so you have to create a DOS boot disk (write-enabled!), put the Exe on the disk, reboot, and run the Exe from the DOS disk. The Exe will extract the S018 (I guess this is the step that fails in Windows resulting in the zero-size ROM-file) onto disk and run the AwdFlash'er using the following options: /cp/cd/py/sn/

So i Think I need to run from dos, or extract from dos?