Hi,
I'm trying to add 2GB memory to my iMac. Found new one on eBay,
2GB DDR2 SDRAM PC2-4200 (533MHz) ECC, placed it in the only slot available,
which had a 512 MB in it. The iMac did not recognize the 2 GB RAM.
What could possibly be wrong? Beside the RAM being bad.
Ed
iMac, Mac OS X (10.5.8), PPC, 20", G5
It is possible the G5 does not like DIMMS greater than 1GB each. i.e. one 2GB DIMM may be too much for it to hangle in one chip.
Based on the following it seems to be true for earlier models: http://support.apple.com/kb/HT2248
Thanks for the quick responce.
According to the model, MA064LL/A, it should be able to handel 2.5GB.
The Processor runs at 2.1Ghz.
ED
You got the wrong RAM for a couple of reasons. According to Crucial's RAM finder, the 2.1G 20" G5 iMac should take this RAM:
It's PC2-5300 and non-ECC. PC2-4200 ECC won't work
Return it. I can't begin to tell you the number of posts about getting the wrong Mac RAM on an auction site I've seen over the ~12 years I've spent in these forums.
You do not say where you are. If you give us an idea, we can direct you to respected vendors of Mac RAM that works first time.
Hi Allan,
Thanks for your patiences. I'm in NYC.
The specs for the MA064LL/A dosen't mention a PC2-5300,
but they do say the G5 will not support ECC DIMM on a hidden page.
Ed
Hi Ed,
When I checked other vendors' site, the PC2-4200 is showing for your G5. Crucial knows faster RAM will clock back so that may be a way for them to limit inventory.
These are the two vendors from whom I've bought all our Mac RAM for over a decade:
Data Memory Systems (New Hampshire):
http://www.datamemorysystems.com/_apple_info/Apple_G5_iMac_20_2.1GHz_Memory_1187 .asp
Other World Computing (Illinois):
http://eshop.macsales.com/shop/apple/memory/iMac/G5_1.9GHz_2.1GHz_iSight
Add Ram toan Imac G5
