AlexZ wrote on 2026-01-17, 14:48:

You may need newer BIOS. CPUs are rarely dead. It's the motherboards and GPUs that die. Buy only CPUs verified by seller or they need to be super cheap.

while the "CPUs rarely die" thing is largely true, those CPUs with exposed die are the exception to that rule

I've seen plenty of broken cumines

squelch41 wrote on 2026-01-24, 20:13:

Check the slotket adapter - some only support up to certain steppings of Socket 370 chips - intel put things in place to block […]
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Check the slotket adapter - some only support up to certain steppings of Socket 370 chips - intel put things in place to block newer CPUs working - if that's the issue, you need to modify the sockets:

https://web.archive.org/web/20250621151232/ht … der.com/370mod/

https://web.archive.org/web/20170829114242/ht … /reads/MSMG.htm

I have a tualitin celeron running in a 440BX with a slotket but it took quite a lot of trial and error to get it working!

Rom.by used to have a bios patcher to add support for additional CPUs for boards that didnt support them - mine worked without but just reported the wrong speeds on the bios screen - rom.by sorted that out.
I only did it though as the EEPROM was socketed, so I dumped the original rom and then played with the adjusted image on a new ROM chip, safe in the knoweldge that if it went wrong, I could just swap the old one back in.

Rom.by site seems to be dead now but is on archive.org:
https://web.archive.org/web/20220117162114/ht … ok/BIOS_Patcher

There is some info about patching here:
https://www.youtube.com/watch?v=0KBYj1vx3zQ

I really cant remember how I did it as it was a couple of years ago now

Wow, thanks, it was interesting to read this. But it's too risky for my skills, so I ended up getting an 866MHz P3 from eBay, and it works... It's fine anyway.

Devil996 wrote on 2026-01-30, 20:12:

squelch41 wrote on 2026-01-24, 20:13:

Check the slotket adapter - some only support up to certain steppings of Socket 370 chips - intel put things in place to block […]
Show full quote

Check the slotket adapter - some only support up to certain steppings of Socket 370 chips - intel put things in place to block newer CPUs working - if that's the issue, you need to modify the sockets:

https://web.archive.org/web/20250621151232/ht … der.com/370mod/

https://web.archive.org/web/20170829114242/ht … /reads/MSMG.htm

I have a tualitin celeron running in a 440BX with a slotket but it took quite a lot of trial and error to get it working!

Rom.by used to have a bios patcher to add support for additional CPUs for boards that didnt support them - mine worked without but just reported the wrong speeds on the bios screen - rom.by sorted that out.
I only did it though as the EEPROM was socketed, so I dumped the original rom and then played with the adjusted image on a new ROM chip, safe in the knoweldge that if it went wrong, I could just swap the old one back in.

Rom.by site seems to be dead now but is on archive.org:
https://web.archive.org/web/20220117162114/ht … ok/BIOS_Patcher

There is some info about patching here:
https://www.youtube.com/watch?v=0KBYj1vx3zQ

I really cant remember how I did it as it was a couple of years ago now

Wow, thanks, it was interesting to read this. But it's too risky for my skills, so I ended up getting an 866MHz P3 from eBay, and it works... It's fine anyway.

Glad to hear you're up and running 😀