"news_reader" said:
Is it in Bios posting or on the board?
Whenever an engineer changes the copper tracks in a PCB, they
change the revision number, as the board is now different than
before. Normally, the silk screen (white letters) on the board
are updated, with something like "Rev x.y" printed somewhere on
the board.
The second kind of information, is called the PCBA (PCB assembly).
The PCBA is a "shopping list" of the components used to build
the motherboard. If the same revision of PCB is used, but the
components used to build the board change, then the PCBA value
must be incremented. For example, on some of the old P2B-xx
family motherboards, some PCBA include the use of better
voltage regulators, and the supported processor list for the
board is changed by the use of those voltage regulators. In
some circumstances, you would also want to know what PCBA
was used to build a motherboard.
This picture of a P4C800-E, shows a sticker between a couple of
PCI slots, which seems to be a sloppy way to do things. The
sticker has a revision number printed on it. What happens if
that sticker falls off ? The revision number should really
be printed so that it cannot be washed off.
http://leonardoss5.altervista.org/images/overclock/asus-p4c800e-big.jpg
Here is what a PCB revision should look like:
http://web.archive.org/web/20050927...t/FAQ/FAQ_Bilder_allgemein/faq077_rev_pic.jpg
The PCBA is a field of numbers printed on one of the stickers
on the motherboard. In this example, the PCB assembly is A02:
http://web.archive.org/web/20050927.../FAQ/FAQ_Bilder_allgemein/faq077_pcba_pic.jpg
Paul
