Power Mac 7200/90 a few issues.

laserspot1

macrumors newbie
Original poster
Jun 8, 2012
14
0
I own this powerpc 7200/90 and it always has a loud sweaking sound that come every now and then. It seems like its the motherboard not the fan.

It runs on os 9 and is super slow and there is barely anything installed on it. How should this be fixed?

Also it doesn't seem to read dos/ibm floppies. Is there a way to fix this? (i'm scared it can't read mac floppies but i don't know)
 

hantsbay

macrumors newbie
May 16, 2012
9
0
Hampshire, UK
Re the speed issue, this is a 90MHz PowerPC 601 - one of the earlier PowerPC chips from 1995/96, so it will definitely struggle with OS 9 (having shipped with System 7.5.2).

I remember because I also had one of these and tried the same thing!

OS 9 was rarely lightning fast on anything pre-G3 to be honest.
 

Lil Chillbil

macrumors 65816
Jan 30, 2012
1,322
95
California
The only thing I can think of doing for this old machine is maxing out the ram
to 512mb using 4 128mb sticks of ram
then try it on 9.1 and it should be just fine

a larger harddrive will also help but not with speed
 

pacmania1982

macrumors 6502a
Nov 19, 2006
993
191
Birmingham, UK
Re the speed issue, this is a 90MHz PowerPC 601 - one of the earlier PowerPC chips from 1995/96, so it will definitely struggle with OS 9 (having shipped with System 7.5.2).

I remember because I also had one of these and tried the same thing!

OS 9 was rarely lightning fast on anything pre-G3 to be honest.
I had one back in the day. I bought Mac OS 8.5. I found 8.5 struggled on it. I couldn't upgrade to 8.6 as it required 24MB of physical RAM. A few months later I got a blueberry iMac DV 400

Have you tried Mac OS 8.1 on it?
 

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havokalien

macrumors 6502a
Apr 27, 2006
650
49
Kelso, Wa
Faster

Ram and os 8.1 are both great ideas for the machine. If you don't wanna change anything else I would say a cheap pci video card will speed it up as I just did that for a friend. Best upgrade path though to keep the case is a 7300 or up motherboard as it slaps right in and processor upgrades are cheap up to g4 on eBay.

Good luck
 

robivy64

macrumors member
May 29, 2004
46
0
Fort Worth, TX
For the squeaking: You might want to consider changing the capacitors on the motherboard and/or power supply.

I had an old Fujitsu FM Towns PC that made a high-decibel noise while powered on, and one of the capacitors in the power supply had failed.
 
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