Build my own "Top Hat Flash" plcc module

BIOS Questions that don't belong in the other forums. Read them!
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pyno
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Posts: 1
Joined: Wed May 11, 2011 9:47 am

Hello,
I have two identhical MB with plcc soldered bioses, one is good, the other is bad (flashed).
Chips are SST49LF080A LPC8 type.
I have also some spare new plcc sockets and one blank SST49LF080A from ebay.
I would like to build my own "Top Hat Flash".
Image

I found some interesting advices from here http://www.badcaps.net/forum/showthread ... 905&page=3
Have you ever made this before?

That would be great!
Thanks
edwin
The Hardware Archivist
Posts: 6286
Joined: Wed Mar 20, 2002 7:11 pm
Location: Netherlands
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http://www.coreboot.org/Developer_Manual/Tools
After bootup, it can manually be lifted off the original BIOS chip, so the original BIOS can be reflashed after a failure. The RST# pin is wired to OE# on the spare chip, otherwise it's wired 1:1. Top Hat Flash is equipped with a Winbond W39V040AP FWH. It may rely on particular circuitry on the mainboard to operate.
Some info here:
http://www.badcaps.net/forum/showthread ... 905&page=2

From what I read it involves modifying the connections on the chip on your motherboard. I think you might as well use a hot-air gun to desolder the chip and put in a socket, then an already flashed chip with the right bios...
edwin/evasive

Do not assume anything

System error, strike any user to continue...
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