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- Newsgroups: comp.sys.mac.hardware
- Path: sparky!uunet!mcsun!chsun!amaag
- From: amaag@chsun.chuug.ch (Andreas Maag)
- Subject: Re: Finally got my IIsi to 25mhz!
- Message-ID: <1992Dec23.115208.21737@chsun.chuug.ch>
- Organization: CHUUG, Swiss UNIX Systems Users Group
- References: <!ds2+_m@rpi.edu>
- Date: Wed, 23 Dec 1992 11:52:08 GMT
- Lines: 36
-
- In article <!ds2+_m@rpi.edu> simsh@crockett1a.its.rpi.edu (Big Guy) writes:
- >Well, after waiting a month and a week for my crystal to arrive due to the
- >campus electronics store's silliness, I finally got my 50mhz crystal for my
- >IIsi. After removing the old one, jabbing myself in the thumb with the pins
- >from the new one (ouch!), etc. I finally got my computer set up. It was truly
- >amazing! I checked with Speedometer and also did some scrollbar tests in Micro-
- >soft Word 4 and found my document's scroll time in 8-bit color went from 40
- >seconds before to 27 seconds after. Not bad! And from 10 seconds in b&w to 6.5
- >seconds! Not twice as fast 8-bit as before, but not bad! Also, I have 5megs of
- >RAM on my si, all of it 80ns. I have a nubus/fpu board installed. I have a heat
- >sink on BOTH the cpu AND the fpu, just because. I have experienced NO problems
- >at all due to this upgrade. Also, I touched the crystal and cpu after the
- >computer was on for a couple of hours, and the crystal was cool to the touch,
- >the cpu slightly warm as expected with the heat sink, the fpu was also cool to
- >the touch (well not cool, but room temperature, you know what I mean...) Thanks
- >to the original posters who convinced me to do this to my expensive piece of
- >equipment! Tomorrow, I go to the store and order a 60mhz crystal, will let
- >everyone know how it works when I get it sometime next year!
- >
- I was also successful with 25 MHz but with 30 Mhz (60MHz crystall) my
- IIsi had after 2 or 3 Minutes some strange error. I had to turn
- off the computer by hand, because the reboot (rb) of MacsBug didnt work
- anymore.
- Additionaly I`ve installed a cooler for the 68030, just to be sure.
- With 30 MHz the Rams became rather hot too.
-
- CHUUG/EUnet Switzerland Andreas Maag
- Zweierstrasse 35 Tel: +41 1 291 45 80
- CH-8004 Zuerich Fax: +41 1 291 46 42 amaag@chuug.ch
- Do you wish men to speak well of you? Then never speak well of yourself.
- Pascal
- --
- CHUUG/EUnet Switzerland Andreas Maag
- Zweierstrasse 35 Tel: +41 1 291 45 80
- CH-8004 Zuerich Fax: +41 1 291 46 42 amaag@chuug.ch
- Do you wish men to speak well of you? Then never speak well of yourself.
-