[ILUG] Still at the BIOS

[Mel]

On Tue, 12 Oct 1999, Kenn Humborg wrote:

> On Tue, Oct 12, 1999 at 01:40:25PM +0100, Mel wrote:
> 
> That seems odd...  Flash programmable EPROMs usually have an F in
> the part number.  The 27C020 is probably not flash programmable.
> 

It does, The part is

39SF020 90-4C-PH 991391-A
   ^

I think the SST part is some internel lookup on their own catalog

> However, if you are content with having a non-flashable BIOS, 

I'm not :-)

> then
> the 27C020 should be OK.  Farnell order code 671-137 is an AMD
> 2Mb (256K x 8), 90ns EPROM (non-OTP).  (OTP means one-time-programmable
> which means that the package doesn't have a little window in the
> top for erasing the chip with UV light.)  If you can find a good
> BIOS chip identical to your dead one, any standard EPROM programming
> kit should be any to copy it for you.  Talk to your EE dept.
> 

What would the order code be for a flashable one? I don't have access to
Farnell's catalog but the store in college does so they can probably get
it for me. I've also managed to get access to a few EEPROM programmers at
this stage. All I need is that chip.

> If you can't find a good BIOS chip, you might be able to extract the
> relevant info from the BIOS update files, but it could be tricky...
> 

ouchies.

> Have you tried going back to whoever you got the motherboard from in
> the first place and asking them for a spare part?
> 

I trawled on usenet asking more or less the same thing. Most ppl were told
to fuck off. One managed to get a chip of them but it took two months and
cost him 40 dollars.

	Mel