Socket 5 motherboard and P150+?

[Eli]

Will a Cyrix P150+ (running at 120) work on a socket 5 motherboard, with no voltage or multiplier adjustments on board, and with 50, 60, and 66MHz bus speeds? It's currently running an Intel P75 at 90MHz. Thanks muchly.

[Peter M]

Hi!

You will find that those socket-5 boards can't feed enough amperage into the processor socket to feed the original 3.5V Cyrix 6x86. You'll have unstable voltage causing unstable operation, and overheating of the board's voltage regulators.

Remember those old "Cyrix is unstable" stories? It wasn't the processors' fault back then. (Although Cyrix "fixed" it by gradually reducing power consumption through updated manufacturing processes - just like AMD just did for the K6-2 and -III series, which are now down from 2.4V to 2.2V for all desktop speed grades, and from 2.2V to 2.0V for those mobile "P" types.)

Regards, Peter

[Eli]

You might've just helped me more than you know... The P150+ is in my brother's socket 7 system, which is very unstable because of the voltage regulator overheating. Until now I assumed that it was a fault in the motherboard... Thanks for the info, I really appreciate it.