Overclocking a P166 Classic!

Zach

Diamond Member
Oct 11, 1999
3,400
1
81
Anyone do that in the old days? I got a board with a P166 classic that can put out 3.3, 3.4, and 3.5 volts. It's dying to be a little file server! Running at 66x3 is unstable... think 3.4v would hurt it?
 

Dexion

Golden Member
Apr 30, 2000
1,591
0
76
No,it won't hurt. However I used to own a Pentium 150 that would do 200mhz on default voltage. Simply change the multiplier(its unlocked). Try 2.5x75 and see if it likes it.
 

EvilDonnyboy

Banned
Jul 28, 2000
1,103
0
0
make sure you got decent cooling for that thing. Not too hard consider it' dont' give out a jillionth the amount of heat of current cpu's. But some ppl underestimate the heat from these things. Just make sure ur using thermal grease and have any size fan pointed at the heatsink.
 

steven185

Member
Feb 17, 2001
43
0
0
I remember an old p133 i had that ran just fine at 200 with stock hs/f
thermal paste at default voltage
 

Zach

Diamond Member
Oct 11, 1999
3,400
1
81
Yeah, my old P100 did 133 no problem, like a current 166MMX that does 200 right now. I may still use the 166MMX chip, but I'd need to swap some SIMM's to do that (need at least 128megs).
 

Deanodarlo

Senior member
Dec 14, 2000
680
0
76
No AMD presence here from the good old days so here it goes.......

Had a 586 P75 133 at 160. No voltage change or heat problem. Arrrrhhhhh simplicity, I LOVE IT!

Deano
 

burnedout

Diamond Member
Oct 12, 1999
6,249
2
0
Ah, the good old days.

My first was a 486/20 at 33 MHz. Then a Pentium 60 at 66 MHz.

Had a P100 at 133. A 166MMX at 233. All on 60ns EDO too.

 

AdamK47

Lifer
Oct 9, 1999
15,675
3,529
136
I had a P166 Classic about 4 years ago. I couldn't even get the mofo to 180MHz no matter what. It could have been the EDO SIMMs I was using though.
 

Blayze

Diamond Member
Feb 22, 2000
6,152
0
0
had/still have in back room a Pentium 200 MMX chip that did 225 default voltage with a cheap little heatsink and fan.
 

FlowerCourier

Junior Member
Feb 22, 2001
2
0
0
got a p150 classic up 168/112fsb default voltage stable.
CPU unstable? i'd put a big block of metal on top, increase the voltage to 3.5V. did no harm...

case your wondering my mobo = Via chipset mvp3c2
 

AmazonRasta

Banned
Dec 2, 2000
2,005
1
0
I had an old Packard Bell Pentium 166MHz that overclocked to 200MHz (66x3) at default voltage (whatever that is) without a problem.
 

Zach

Diamond Member
Oct 11, 1999
3,400
1
81
Whoohoo! used the giant fan from my K6-3, it was a big one from Computer Nerds... IE crashed but who know if that was the processors fault.

What's a good program to use to test stability now?... I'd use SETI but I think it wont run in 16 color (only an ISA video card).