crwdns2933423:0crwdne2933423:0

Model A1001 or A1025 / 667, 800, 867, or 1.0 GHz G4 processor

crwdns2934591:050crwdne2934591:0 crwdns2934593:0crwdne2934593:0

repeated crashes after memory upgrade

I upgraded my G4 Titanium 867 DVI memory from 512MB to 1 GB. The computer recognises the memory. System profiler says its OK. After a few minutes of operation programs start crashing, then the computer crashes. I re-installed the memory twice but the problem persists. Reverting to the old memory chips removes the problem. I am running osx 10.5.8

crwdns2934081:0crwdne2934081:0 crwdns2934083:0crwdne2934083:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 -1
crwdns2934285:0crwdne2934285:0

crwdns2933313:01crwdne2933313:0

crwdns2934051:0crwdne2934051:0

You solved the problem. Please tell us all about the new RAM.

crwdns2934105:0crwdne2934105:0

crwdns2889612:0crwdne2889612:0 1

crwdns2944067:05crwdne2944067:0:

The new RAM is labelled SMT 512MB SO DIMM PC133 8300UC www.siliconmemnory.com. Each module has 8 chips on each side, six in a row and two at right angles behind.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

Some RAM chips that are made for PCs will not work in MACs. I do not recognize the SMT and could not find RAM listed at www.siliconmemory.com. I would get RAM from a suppliers that specifically handles MAC such as:

http://www.ramdirect.com/51pbg4tisopc.ht...

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

I bought the RAM from a MAC specialist. From my research on the internet it seems identical to that being offered by a number of RAM suppliers for this particular computer. I'm in Hobart, Australia, so my sources are limited. If I can't solve the problem I'll return it to the supplier and order on the internet. I'm wondering whether resetting pram or pmu might help. Haven't tried that yet.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

I don't think it will help but try removing the battery and AC, hold the power button for 10 seconds and then retry it. Just tell your supplier what is happening.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

Thanks, I'll try that. If no result I'll contact the supplier for advice tomorrow. I thought perhaps it might be a common problem with a simple answer, but it appears not.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0

crwdns2934229:0crwdne2934229:0

Rex crwdns2934231:0crwdne2934231:0
crwdns2936625:0crwdne2936625:0:

crwdns2936751:024crwdne2936751:0 0

crwdns2936753:07crwdne2936753:0 0

crwdns2936753:030crwdne2936753:0 1

crwdns2942667:0crwdne2942667:0 548