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SE/30 Not Booting up

Submitted by Rodimus99 on October 21, 2007 - 2:21pm. 680x0 Macs and Lisa

I get a blank gray screen and an interesting tone, it freezes after that. Thanks in advance.

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Bad RAM, Mrs. Torrance?

Submitted by william ahearn on October 22, 2007 - 2:13am.

Hey,

That tone -- or series of notes -- indicates bad RAM in most cases. It could be something else. Are you comfortable going inside?

William
www.williamahearn.com

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I'm pretty comfortable openin

Submitted by Rodimus99 on October 22, 2007 - 7:25pm.

I'm pretty comfortable opening it up. Is it difficult to replace the RAM?

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lefevere's picture

oxidation on the connectors of the ram

Submitted by lefevere on October 22, 2007 - 11:11pm.

possible solution :

remove the ram
clean with a pencil eraser the connectors
replace the ram

» my apple computers

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pmjett's picture

nope

Submitted by pmjett on October 23, 2007 - 1:16am.

It's not hard to get at the se/30 RAM. You will have to take the logic board out. Get your T15 torx driver from Sears, lay the se/30 down on it's front (on a towel), and persuade the case to come apart. Some folks use a case opener, I use a spring clamp from Sears with the "jaws" flattened out into a duckbill. Just disconnect the SCSI connector, floppy connector, and power connector from the motherboard. Obviously remove any cards in the PDS slot. I don't remember any other fasteners holding the motherboard. It should slide right out. The RAM is immediately obvious. There are spring tabs on each side that you'll need to push in to release the SIMMs. The previous poster is correct, it is possible that you have some oxidation.

While you have the motherboard out, I'd look around for capacitors that are misshapen (bulging tops), or more commonly- leaking. Plan on replacing them. A decent web guide (that you may have seen) is:

http://www.biwa.ne.jp/~shamada/fullmac/repairEng.html

mike

» 128K now working!, 512K, Mac Plus, Classic, SE/30, ANS 700/200, Indigo iMac, B&W, Sawtooth, iBook G4. Numerous SGI and Sun boxen.

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