boby wrote on 2025-07-31, 17:06:

I have a board which is difficult to identify.

not hard at all .
https://theretroweb.com/motherboards/s/trigem-lyon

Your dip switches also seem to not be set right. Assuming you have a 350mhz pii you need to set the dips to on-off-off-on and not off-on-on-off
did you also try the on board video.

old school gamer man wrote on 2025-07-31, 17:41:

not hard at all . https://theretroweb.com/motherboards/s/trigem-lyon […]
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boby wrote on 2025-07-31, 17:06:

I have a board which is difficult to identify.

not hard at all .
https://theretroweb.com/motherboards/s/trigem-lyon

Your dip switches also seem to not be set right. Assuming you have a 350mhz pii you need to set the dips to on-off-off-on and not off-on-on-off
did you also try the on board video.

Didn't touch switches, I got this board yesterday, I shows 350 Mhz, not sure if overclocked, or not. I already tried on board video.
So wrong clock could prevent BIOS to show up?

P.S. I don't have floppy cable by hand, but floppy is enabled by default. When it boots to system, it hangs on floppy for few seconds. I assume that is not the issue?

Update1: I did switches as suggested, still same problem. Shows 350 MHz

Update2:

There are more switches, just can't figure out the correct position as CMOS enable didn't do the trick:

boby wrote on 2025-07-31, 18:10:

Didn't touch switches, I got this board yesterday, I shows 350 Mhz, not sure if overclocked, or not. I already tried on board vi […]
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Didn't touch switches, I got this board yesterday, I shows 350 Mhz, not sure if overclocked, or not. I already tried on board video.
So wrong clock could prevent BIOS to show up?

P.S. I don't have floppy cable by hand, but floppy is enabled by default. When it boots to system, it hangs on floppy for few seconds. I assume that is not the issue?

Update1: I did switches as suggested, still same problem. Shows 350 MHz

can you post a photo of the top of the cpu ? it should have Pentium 2 on it and some info like voltage, clock speed and so on.

Move dip switch 5 to the off position, on wipes the cmos.

did you try move the ram to the other 2 slots ? I had a frew 440 boards that did not like runnign right with the ram in the slot next to the CPU if the other slots were empty.

Initially jumpers 5 - 8 were set to ON. Which is strange.
I set 5 & 6 OFF -> Normal mode & setup enable
7 On or Off it complains now on every boot: "103: Password switch disabled, Change password JMP". Whatever I set, this errors shows every time
If I set back 5-8 to ON, error is not there. What a hell is happening?

RAM swap not helping

Update3: Something is very very wrong here. I set J6 Setup Enable and I get that PW error from above. I didn't even touch PW switch!
What is the correct setup for J5 - J8?

the CPU dips, d1-4 should be on-off-off-on
d5 should be off when not wiping the cmos
d6 should on I think.
d7 is for wiping the bios PW.
I have no clue what d8 is for. something to do with the fdd

Hi, can you add a second video card to see if it makes any difference?

randi wrote on 2025-07-31, 19:42:

Hi, can you add a second video card to see if it makes any difference?

Tried that - same 🙁

crazy idea but could your monitor not support the right display modes used by the bios... also can you get past the post screen ? say put a dos boot disk in the system and does it boot to that ?

And this might be a board that used a bios setup on a hdd? I can't see that being the case but I seen that in a few IBM PC and laptops from the era.

old school gamer man wrote on 2025-07-31, 19:39:

the CPU dips, d1-4 should be on-off-off-on d5 should be off when not wiping the cmos d6 should on I think. d7 is for wiping t […]
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the CPU dips, d1-4 should be on-off-off-on
d5 should be off when not wiping the cmos
d6 should on I think.
d7 is for wiping the bios PW.
I have no clue what d8 is for. something to do with the fdd

I am not offered to press some key for bios at all with this config

boby wrote on 2025-07-31, 19:48:

old school gamer man wrote on 2025-07-31, 19:39:

the CPU dips, d1-4 should be on-off-off-on d5 should be off when not wiping the cmos d6 should on I think. d7 is for wiping t […]
Show full quote

the CPU dips, d1-4 should be on-off-off-on
d5 should be off when not wiping the cmos
d6 should on I think.
d7 is for wiping the bios PW.
I have no clue what d8 is for. something to do with the fdd

I am not offered to press some key for bios at all with this config

dose it get past the post screen tho?

old school gamer man wrote on 2025-07-31, 19:50:

boby wrote on 2025-07-31, 19:48:

old school gamer man wrote on 2025-07-31, 19:39:

the CPU dips, d1-4 should be on-off-off-on d5 should be off when not wiping the cmos d6 should on I think. d7 is for wiping t […]
Show full quote

the CPU dips, d1-4 should be on-off-off-on
d5 should be off when not wiping the cmos
d6 should on I think.
d7 is for wiping the bios PW.
I have no clue what d8 is for. something to do with the fdd

I am not offered to press some key for bios at all with this config

dose it get past the post screen tho?

yes, that happens every time. I can even boot to DOS if I connect HDD.

Simply whatever I try it is blank in BIOS. Would bios flash help? I am not on the latest version. But I need to get working floppy first.

I was thinking a bios flash might fix it, but be sure you back up the bios you have now and be ready to brick the board and have a way to flash the bios back. If you can boot into dos I would leave it be and just setup the OS and stuff. I cant see a board like this having much if anything in the bios to change.

old school gamer man wrote on 2025-07-31, 20:01:

I was thinking a bios flash might fix it, but be sure you back up the bios you have now and be ready to brick the board and have a way to flash the bios back. If you can boot into dos I would leave it be and just setup the OS and stuff. I cant see a board like this having much if anything in the bios to change.

True, but would be nice to have everything in control.

Ok, solved.
Just needed older monitor 😒

Still what is strange I have no errors only if I set J5 - J8 to ON. That is strange as this is set to clear CMOS, but data is saved there. So many strange things

boby wrote on Yesterday, 10:07:

Ok, solved.
Just needed older monitor 😒

Still what is strange I have no errors only if I set J5 - J8 to ON. That is strange as this is set to clear CMOS, but data is saved there. So many strange things

The dip switches could be backwards. Seen that a few times.