Chaintech 6BJM0, aka BCM QS440BXP

PcBytes wrote on 2025-04-13, 23:32:

Chaintech 6BJM0, aka BCM QS440BXP

I've been looking for this info, Many many thanks!

update: just blasted the ever loving hell out of the motherboard, memory, cpu pins, and video card with crc plastic safe contact cleaner and now it posts properly

There was never a Celeron 550, if it's a Mendocino, it's probably a 533, or if a Coppermine, a 533A or 566. Or could, of course be an overclocked Mendocino 366, which at 100 MHz FSB would run 550. A very popular choice by overclockers back in the day ..

H3nrik V! wrote on 2025-04-15, 04:15:

There was never a Celeron 550, if it's a Mendocino, it's probably a 533, or if a Coppermine, a 533A or 566. Or could, of course be an overclocked Mendocino 366, which at 100 MHz FSB would run 550. A very popular choice by overclockers back in the day ..

you're right, I was probably just misremembering since it was a moment since I last checked, I just checked again and it's actually a Celeron 566!

steakguy120 wrote on 2025-04-15, 04:20:

H3nrik V! wrote on 2025-04-15, 04:15:

There was never a Celeron 550, if it's a Mendocino, it's probably a 533, or if a Coppermine, a 533A or 566. Or could, of course be an overclocked Mendocino 366, which at 100 MHz FSB would run 550. A very popular choice by overclockers back in the day ..

you're right, I was probably just misremembering since it was a moment since I last checked, I just checked again and it's actually a Celeron 566!

Oh, that would be a Coppermine then. Very cool running, and often they're capable of running at 100 MHz FSB for an 850 MHz CPU clock 😀

Celeron 533A i would like to have, like Celeron 300A that i have. 😀.

H3nrik V! wrote on 2025-04-15, 05:50:

steakguy120 wrote on 2025-04-15, 04:20:

H3nrik V! wrote on 2025-04-15, 04:15:

There was never a Celeron 550, if it's a Mendocino, it's probably a 533, or if a Coppermine, a 533A or 566. Or could, of course be an overclocked Mendocino 366, which at 100 MHz FSB would run 550. A very popular choice by overclockers back in the day ..

you're right, I was probably just misremembering since it was a moment since I last checked, I just checked again and it's actually a Celeron 566!

Oh, that would be a Coppermine then. Very cool running, and often they're capable of running at 100 MHz FSB for an 850 MHz CPU clock 😀

well that's quite nice to know, definitely will give it a shot when i get the chance

So, as of 5/12/2025, I've got a 1ghz/133 pentium III, matrox g250, 512mb pc100 ram, soundblaster audigy, and i am running the system at the bus speed of 100mhz, i was installing drivers on windows 98se, and i was specifically installing the last intel 440bx drivers but now the system does not post, and instead lets out one long beep followed by three short beeps, any clue on what could have gone wrong here, I already reseated the memory, and video card, so I'm currently a little stuck.

If it were me, I'd try a different video card, something like a very basic PCI card such as an S3 Trio.

Repo Man11 wrote on 2025-05-13, 04:33:

If it were me, I'd try a different video card, something like a very basic PCI card such as an S3 Trio.

you are far smarter than I... so I followed your advice and threw a trio64 in, that got the system posting properly, then I tried the Matrox G400 (flex 3d), that didn't work, tried the G250 again, that didn't work either, and now I tried the ATI Rage 128 pro and that seems to work properly as well.

I suppose my motherboard just hates weird matrox cards now, finally got some pc 133 memory, threw that in, and now im running the system at a bus speed of 133mhz, which seems to work as well, now I'm gonna try to update the bios of the board using the included flashing utility, so I'll wait and see how that works out.