Bios Reverse Enginering, Help Wanted.

[Treker]

Hey Guys,

I have an oem'ed Intel AN430TX Mother board with the attached Bios from Packard Bell, listed under the board name PB790.

*edit * wont attach to big, e-mail me at [email protected] for it *edit*

The board has an ICS 9147-01 Clock chip that is capible of 50,55,60,66,75, and 83.3 settings.

Yet the board has only one Jumper for the FSB selection and the chip itself was programed to use settings 60/66fsb for that jumper.

If we can reverse the Bios itself, we might have a chance of programing the clock chip to see the jumper as 75/83.3mhz

Or allowing FSB settings in the Bios for all the speeds the clock chip is able to do. ( which would kick *** as we could aply this to other Intel mobos )

That is the Goal for this project, if anyone can help me reach it I will do my best to reward them!

-Trek

 

[DocClock aka MadClocker]

You might look carefully at the jumper section of your mobo, there could be provisions for the extra jumpers, but just not soldered in....so if they are there, and marked, you could just rob some jumpers form something else, like an old 386...and solder them in...but you have to have a steady hand....oryou can just take out the jumpers for 66/60, and temporarly short the other spot you would need.
Of course I take no responsibility if you fry your stuff
as all the above is very risky if you don't know what you are doing

 

[Treker]

DocClock aka MadClocker (Mar 22, 2001 05:47 a.m.):
You might look carefully at the jumper section of your mobo, there could be provisions for the extra jumpers, but just not soldered in....so if they are there, and marked, you could just rob some jumpers form something else, like an old 386...and solder them in...but you have to have a steady hand....oryou can just take out the jumpers for 66/60, and temporarly short the other spot you would need.
Of course I take no responsibility if you fry your stuff
as all the above is very risky if you don't know what you are doing

I've been over this board with a fine tooth comb for about 2-3 years now, nope, no jumpers, that was my first thought

Actually if you read my last post http://forums2.overclockers.ws/forums/UltraBoard.cgi?action=Read&BID=3&TID=2278&SID=36452
I've discovered that removing the resistor from "REF2" on the chip will theroticaly give me 83.3mhz right off the bat.... looking into it more, but this was confirmed by ICS the chip manufacture.

Things are getting interesting, just think of what other Intel boards can be overclocked this way?

-Trek

 

[marty]

I am surprised that so little has been publicly writtern about how to make a BIOS update program. It must be fairly hard.

That being said, there are definately people "out there" who know how.

There are two programs that I have played with that might help. Since I don't know how they will do with your motherboard I can't guarantee anything.

The first one is from H. Oda. It is called WPCREDIT. I downloaded it and a file that allows it to work with my motherboard's chipset. I tried a few tweaks with the program and it didn't really work that well for me. It does allow BIOS changes from Windows.

Try:

H-oda - Expertos en Seguridad

Expertos en Seguridad

www.h-oda.com

The second program is SMBIOS from Qualitas. This seems to dump a whole lot of stuff from the BIOS but I can't even see it let alone understand it. Many screens of information flash by quickly in a DOS box. I can't figure out how to read it page by page.

Try:

Sudley Place Software

If you have already seen these then I apologize for wasting this valuable bandwidth.

And if anyone knows of any spot on the web that explains how to "make your own BIOS" I am interested in reading it.

 

[Treker]

marty (Mar 22, 2001 04:53 p.m.):
I am surprised that so little has been publicly writtern about how to make a BIOS update program. It must be fairly hard.

That being said, there are definately people "out there" who know how.

There are two programs that I have played with that might help. Since I don't know how they will do with your motherboard I can't guarantee anything.

The first one is from H. Oda. It is called WPCREDIT. I downloaded it and a file that allows it to work with my motherboard's chipset. I tried a few tweaks with the program and it didn't really work that well for me. It does allow BIOS changes from Windows.

Try:

H-oda - Expertos en Seguridad

Expertos en Seguridad

www.h-oda.com

The second program is SMBIOS from Qualitas. This seems to dump a whole lot of stuff from the BIOS but I can't even see it let alone understand it. Many screens of information flash by quickly in a DOS box. I can't figure out how to read it page by page.

Try:

Sudley Place Software

If you have already seen these then I apologize for wasting this valuable bandwidth.

And if anyone knows of any spot on the web that explains how to "make your own BIOS" I am interested in reading it.

Agreed, you think it would be easy to find information on Bios programing!, but I've been searching for ever, cant find anything helpful, and yes thanks for the links, but I've exploared every optioin I could find.. So far it looks like I'm vamped up for a hardware mod.. More to come shortly!.

-Trek

 

[marty]

Can you understand the SM Bios program??

 

[Treker]

marty (Mar 22, 2001 07:38 p.m.):
Can you understand the SM Bios program??

No Clue

-Trek

 

[marty]

Did SM Bios at least work on your motherboard?

Also have you tried the method of using CPU Cool but choosing the "motherboard" based on which PLL chip is present on your motherboard? This works for me. It didn't help me but it worked!

 

[Treker]

marty (Mar 23, 2001 05:49 a.m.):
Did SM Bios at least work on your motherboard?

Also have you tried the method of using CPU Cool but choosing the "motherboard" based on which PLL chip is present on your motherboard? This works for me. It didn't help me but it worked!

I've tryed everything availble, I did get a few tweaks to the board with tweakBIOS, but thats about it.

I'm going to shortly remove the resistor to either pin 1 (will give me 83.3mhz) or pin 2 (will give me 75.0 mhz)

Just waiting to check all my options before I do something perminate.

-Trek