tyan motherboard video woes

  • Thread starter Thread starter asdf
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A

asdf

Have tyan motherboard which has an onboard video
card. After power on have 'FF' code displayed on the
motherboard LED but no beeps and no output to the screen.
Tried using PCI-X video card without any results.
Manual doesn't state anything regarding the FF code
so I don't know what's wrong. The only
related problem i found on the web is from some person
who fixed it by changing jumpers on the mobo.
Unfortunately the manual isn't clear enough
on what, if anything, I have to change.

If anyone has any tips I would be very interested in
hearing them out.
 
asdf said:
Have tyan motherboard which has an onboard video
card. After power on have 'FF' code displayed on the
motherboard LED but no beeps and no output to the screen.
Tried using PCI-X video card without any results.
Manual doesn't state anything regarding the FF code
so I don't know what's wrong. The only
related problem i found on the web is from some person
who fixed it by changing jumpers on the mobo.
Unfortunately the manual isn't clear enough
on what, if anything, I have to change.

If anyone has any tips I would be very interested in
hearing them out.
Click to expand...

Well, lets see. You want tips on changing jumpers, and
you don't even mention the motherboard model number!
Some Tyan boards have a number of jumpers on them,
because of the extensive I/O options.

FF is pretty universal. It means the processor was not
able to execute any code at all. FF is the default
state for a port 80 display. (00 is also a favorite, so
it is one or the other). Any code which is not 00 or FF,
was put there by the execution of BIOS code, so then you
know that the processor has executed some BIOS code.

My guess would be, you forgot one of the many power
cables, needed to make those boards work.

Paul
 
Have tyan motherboard which has an onboard video card. After power on
have 'FF' code displayed on the motherboard LED but no beeps and no
output to the screen. Tried using PCI-X video card without any results.
Manual doesn't state anything regarding the FF code so I don't know
what's wrong. The only related problem i found on the web is from some
person who fixed it by changing jumpers on the mobo. Unfortunately the
manual isn't clear enough on what, if anything, I have to change.

If anyone has any tips I would be very interested in hearing them out.
Click to expand...

Here is the mobo model number:

S2912G2NR
 
asdf said:
Here is the mobo model number:

S2912G2NR
Click to expand...

Three power cables. 2x2 + 2x4 + 24 pin. The first two of those, carry 12V to
the board.

JP3 controls the clear CMOS function and jumper should be on pins 1-2.

Check that the power switch and reset switch are on the correct pins.
The reset switch is not absolutely necessary for initial testing. And
you've already proved the power switch works. Remove the reset switch,
in case it is shorting the reset to ground because of a bad (always
closed) switch.

The first doc shows jumpers, but the second (six part) manual is
really needed, to get more details.

ftp://ftp.tyan.com/quickref/q_s2912_100.pdf

ftp://ftp.tyan.com/manuals/m_s2912_100.part01.exe
ftp://ftp.tyan.com/manuals/m_s2912_100.part02.rar
ftp://ftp.tyan.com/manuals/m_s2912_100.part03.rar
ftp://ftp.tyan.com/manuals/m_s2912_100.part04.rar
ftp://ftp.tyan.com/manuals/m_s2912_100.part05.rar
ftp://ftp.tyan.com/manuals/m_s2912_100.part06.rar

If using only one CPU, there are two CPU slots (CPU1 and CPU2),
and CPU1 is closest to the NFP3600. So the CPU would go into
"CPU1" and at least one stick of RAM into the DIMM slots near
CPU1.

Paul
 
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