MS-6547 BIOS 1.8

Question

Hi all,
just found that MSI had released a new Bios 1.8 for 645 Ultra.
Before I flashed i thought that they didn't solve the IOQD-Issue (low RAM-Bandwith).
But SURPRISE:
this new one seems good for me!!!
Whats your expierience ???
ockk

Answer 1

Quote
Originally posted by ockk
So u want to know the way how to mod the CMOS to get 1.65V ?
1.) get a tool to save the CMOS. There is one in my old Patch called VCORE6547, or search for  "CMOSSAVE & CMOSREST" or "MBC" or any tool that can save and restore the CMOS will do fine. These programs dosn't work corect under Win NT/2K/XP; - only Win98 or pure DOS !
2.) Make a File after setting Bios to 1.475V
3.) Make a File after setting Bios to 1.5V
4.) Make a File after setting Bios to 1.525V
5.) Make a File after setting Bios to 1.55V
6.) Make a File after setting Bios to 1.575V
7.) Make a File after setting Bios to 1.6V
8.) Compare the Files with a hexeditor
(Do not get confused by the first 16 Bytes, its only the Time)  
9.) If there is a Byte which is incremented by one for every saved File, check which Bits of that Byte are used by VCORE-Settings.
10.) Try formerly not used combinations of these Bits, store the patched File to CMOS, make a reboot, and jump straight to Bios "PC-HEALTH-Page" to look what u have done.
11.) Keep in mind that another Bios-Version, "could use" these Bits for other things, so make a test with all Bios-Versions before calling "It WORKS"
good luck
ockk
OK ! Done What you've said  
(Except for steps 10 & 11 from which im a little afraid :D )
I have WinXP so ive created a bootup disk (which gave me Win ME DOS) for the CMOS saving.
I have found out that except for the time bytes,
the CMOS's differ only in places 3E, 3F and 54.
Here  are the exact differences (values in decimal - I like it better than HEX   :P ).
The files are Here in case u want to check them out (or if you don't believe me  :D).
It would be my guess that 1.625V would be
3E = 243 ||| 3F = 002 ||| 54 = 230
And that 1.65V would be
3E = 243 ||| 3F = 003 ||| 54 = 231
The only thing stopping me from trying it is that I fear that I'd set the Voltage to 1.9V or something and burn my CPU... so how do I prevent that from happening ?
Also, I have never actually flashed the BIOS and if something goes wrong, Is it certain that the Ctrl-Home Flashing combination will work?
Is there anything else that can go wrong? if so, how do I prevent it from happening and how do I fix it if it does happen?
Basically, is there anything that could do seruois damage, something of which I should really be afraid in the flashing process ?
Last question - How could it be that the CMOS files the CMOSSAVE program gave me are 128 bytes each, while the original A6567SMS.100 MSI BIOS file is 256 Kbytes? Was i supposed to enable BIOS caching in the BIOS before saving it ?(
Thanks In advance  8)