Kony,
Thanks again for your help. Let me try to fill in the blanks I seem to have
left. The original CPU was a PIII 600Mhz in a Slot 1 configuration. The
replacement CPU is a 933 Mhz PIII in the Slot 1 configuration. This
motherboard version does not include the jumper 21 switch even though the
socket is there. The board is indeed a Tyan Trinity 400 S1854. The board's
revision markings are 99MOAC, if I am reading them right. The number is
printed directly next to the power supply connector, so I assume this is
right. The small white box next to the IDE connector (revision letter) has
C. This certainly leads me to think the board can't handle this CPU speed,
since the .
I jsut did try to set the multiplier down to a lower level. I tried 6 (the
multiplier for the previous CPU) and then 4.5, but got the same error each
time. I don't see any way to use jumpers to set the CPU speed the way I
read your suggestion, so perhaps I'm doing that wrong. Certainly the lower
multiplier settings didn't seem to help.
Multiplier is locked on any retail P3 or Celeron. They
introduced multiplier feature before they knew for sure if
Intel would implement it.
The FSB jumpers on two boards I had- I had to solder on
jumper pins, there were spots on the PCB for them, but I had
assumed you have the jumper since you had mentioned changing
it to 133 versus (100?) MHz. My memory of the jumper
location is poor, it is one of the few boards I didn't take
a full high quality picture of. IIRC, the jumper location
was somewhere towards the right side, a little below the AGP
slot. I'll include a note I made at the time about manually
setting it, I made the note when overclocking a Tualatin
Celeron 1.1 to 1.47GHz because it seemed when it was set to
do it in the bios (change FSB to 133 from 100 after posting)
settings, that left the AGP rate locked and thus overclocked
too, to 89MHz which wasn't workable with the target video
cards I wanted to use.
=======
Locate the "FS0/FS1" jumpers on the motherboard, on the
right-side end of the AGP slot. There are 4 pins arragned
in a square... the first horizontal row is "FS1" and the
second horizontal row is "FS0". Place a jumper across the
top horizonal row "FS1" of pins then turn the system on. It
should now be running at 100MHz FSB. To return to 133MHz
FSB operation, FIRST change the BIOS setting back to
"133MHz/off", then power off the system and remove the "FS1"
jumper.
======
It's been a few years but based on the above, if you took a
piece of wire as a jumper and shorted these two positions it
would force it into 100MHz FSB mode. Perhaps better to use
a small DIP switch if you have one. Unfortunately my memory
of anything more relating to these jumpers is vague, I have
played around with too many boards to remember particulars
of most after a period of time has passed and I have no idea
of the board revisions I had were the same as yours or not.
It might still help to put the old CPU back in, see if it
works and if so, try flashing the newest bios. If Micron
didn't offer one as new as Tyan did then perhaps trying to
force it to accept the Tyan bios, EXCEPT, on a Tyan page I
saw it seemed to suggest Micron might have spec'd some
enhancements, perhaps onboard video or a seperate sound
chip? I don't know, I only had the retail Tyan boards not
those from Micron.
As for the heat sink, well I can't be sure, but I was really careful putting
it together. I followed all the directions provided for applying the arctic
silver paste, and I'm pretty sure this is OK. I don't see anything visibly
wrong with this, and the cartridge seemed to go together without a problem.
I have a feeling that my problem is that the revision of this board will not
handle this CPU. I didn't realize this limitation before I started. It
does seem that changing the clock setting downward didn't help this though.
Thanks again, and I'm not sure if all this would lead somewhere, but any
suggestions or ideas are appreciated.
If you had the socket 370 CPU there might be some pin
manipulations that Google searching would find, or it
might've been possible to use it in a slotket adapter in the
slot, but as is, the only two best suggestions I have is to
try bridging the FSB 100MHz positions if possible, or put
the old CPU in and flash the last bios then retry the newer
CPU.
Besides the limited bios settings available I actually liked
those boards a lot, as they offered AGP4X and use of over
512MB of high density PC133 memory. I think I had to add
an insulator over the Tualatin CPUs to get them to work
overclocked but that was the other benefit, that they
allowed a cheap CPU upgrade that outperformed the lower end
Pentium 4s costing hundreds more at the time.
Unfortunately Tyan didn't supply much info on what they
changed on their board to accomdate the later
P3/coppermines. If they had I might've been able to assist
further but as it is, this is all I have... except if you
want the archive file I made for the board (8.38MB),
http://69.36.189.159/usr_1034/Tyan_Trinity_400_S1854.zip