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From: ong@d.cs.okstate.edu (ONG ENG TENG)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Trying 25MHz? (Speedup 386SX from 16MHz to 20MHz: SUCCESS!)
Message-ID: <1991Jan22.160249.5110@d.cs.okstate.edu>
Date: 22 Jan 91 16:02:49 GMT
Organization: Oklahoma State University
Lines: 27

Well, a certain Mr. M (thank you) from Finland told me that his friend
successfully sped his 16MHz 286 up to 25MHz with a small fan.
Hhhhmmm... beside the CPU that is warm (at 20MHz), the other chips
seems pretty cool.  The C&T chips, the other decrete components, DRAM's,
seems OK.  The only thing that is hotter than the CPU is the *big* serial
chip on my multi-serial card (that's the one chip you have to add for
an extra serial port, I got 4 on mine for 4 serial ports).  Anybody 
wanna stop me (yeah, like you would stop the astronunts (sp?) from going
to Mars!)?

Also, I was asked where to get the oscillator?  It's from Digi-Key,
800-344-4539.  Part# for 40MHz (20MHz operation) is X120 or CTX120.
Part# for 35MHz (17.5MHz operation, if you worry about the heat) is
CTX134.  If you are braver, and wanna to go for higher speed, ask the
Digi-Key operator for higher speed X series or CTX series oscillator,
and be sure to let us know!  (no, we wouldn't give you a prize). 
Also, I got a 35MHz and another 40MHz oscillator extra.  Anyone wants 
to come to Stillwater, Oklahoma and get one for $4? 

Could anyone define hot on a chip (that requires heatsink)?  I know
when a chip is too hot (i.e. ready to burn out), but mine is kind of 
slightly below that.  I can put my finger on it for minutes and my
finger would not burn, but it is quite uncomfortable.

Thanks in advance

E. Teng Ong (ong@d.cs.okstate.edu) 800-344-4539