Old Skool: Will RAM from a PM 7100/80 work in a LaserWriter 12/640PS ?

[Big Daddy Cool]

Just picked up a 12/640PS on CL. Looking over the RAM specs, it seems the RAM from my old 7100/80 PowerMac would work. Before I go into the storage locker and tear the old 7100 apart, would appreciate some verification– I remember the 7100 not being fun to get at the RAM.

[mikebw]

Are both 72-pin SIMMs? 7100 shouldn't be too hard, it was the 8500's that were the worst.

[wickedsteve]

Only one way to find out.

[Biff Lugnut]

The 12/640 and the 16/600 take regular 72 pin chips. Non-EDO 16 MB chips.

Assuming the RAM is fine in the 7100, you should be set.

[WHiiP]

http://www.versiontracker.com/dyn/moreinfo/macosx/10816

Product Description:
Mactracker provides detailed information on every Apple Macintosh computer ever made, including items such as processor speed, memory, optical drives, graphic cards, supported Mac OS versions, and expansion options. Also included is information on Apple mice, keyboards, displays, printers, scanners, digital cameras, iPod, Apple TV, iPhone, Wi-Fi Cards and Base Stations, Newton, and Mac OS versions.

[Big Daddy Cool]

Whiip,

That's where I got the information from. According to MacTracker, they appear to be the same. I was hoping for a more definitive answer than "try it" I upgraded the RAM in the 7100 and I know how much of a pain in the a$$ it was (whole machine has to come apart)– I'd hate to go through it again if somebody here knows that they're not compatible.

[Big Daddy Cool]

So maybe that $1,300 I spent for four 32Mb chips back in the day will pay out, lol.

[Harry in MI]

Check this doc out:

http://docs.info.apple.com/article.html?artnum=16352&coll=ap

[Big Daddy Cool]

Thanks Harry, but that' sfor the 16/600, not the 12/640.

[Harry in MI]

Oops, looked up my printer by habit, here's a big mem. config. chart for laserwriters:

http://docs.info.apple.com/article.html?artnum=9968