Tiger Does Not Recognize Amount Of Ram

dailydoseofjosh

macrumors newbie
Original poster
Mar 31, 2004
5
0
Question,

I have an eMac 1Ghz - and two 512 sticks of RAM in it. (Just bought a new 512 stick to bump it up before school starts.) My computer recognizes only 768 mb though. I thought that maybe one of the sticks was loose or something, so i switched the slots they were in and it still registered at 768. Any suggestions?

Thanks
 

GimmeSlack12

macrumors 603
Apr 29, 2005
5,396
7
San Francisco
Need to know what kind of RAM you put in it. If you are 100% sure of the compatibility with the eMac, then you are probably lookin at some bum RAM.
 

CanadaRAM

macrumors G5
That's a classic case of a RAM module built with high density chips that is incompatible with the Mac. The RAM you bought probably has 8 physical chips on it. The eMac requires one with 16 physical chips of a lower density. The 8 chips are high density on yours, and the eMac can only read the first half of each chip, so only recognizes 256 of the 512 on the module.

The RAM module is probably perfectly good, but it just aint a Mac-compatible one. Next time, purchase from a reputable vendor who tests and guarantees compatibility with your model Mac, and offers a no-charge return if it doesn't work.

Thanks
Trevor
CanadaRAM.com
 

slooksterPSV

macrumors 68040
Apr 17, 2004
3,258
117
Nowheresville
CanadaRAM said:
That's a classic case of a RAM module built with high density chips that is incompatible with the Mac. The RAM you bought probably has 8 physical chips on it. The eMac requires one with 16 physical chips of a lower density. The 8 chips are high density on yours, and the eMac can only read the first half of each chip, so only recognizes 256 of the 512 on the module.

The RAM module is probably perfectly good, but it just aint a Mac-compatible one. Next time, purchase from a reputable vendor who tests and guarantees compatibility with your model Mac, and offers a no-charge return if it doesn't work.

Thanks
Trevor


Heck I'd like to know where you get that kind of information at. Cause I could use info like that.
 

redAPPLE

macrumors 68030
May 7, 2002
2,614
2
2 Much Infinite Loops
CanadaRAM said:
That's a classic case of a RAM module built with high density chips that is incompatible with the Mac. The RAM you bought probably has 8 physical chips on it. The eMac requires one with 16 physical chips of a lower density. The 8 chips are high density on yours, and the eMac can only read the first half of each chip, so only recognizes 256 of the 512 on the module.

The RAM module is probably perfectly good, but it just aint a Mac-compatible one. Next time, purchase from a reputable vendor who tests and guarantees compatibility with your model Mac, and offers a no-charge return if it doesn't work.

Thanks
Trevor
CanadaRAM.com
if this is a fact, then i have been lucky 100% of the time, i buy ram. e.g. i need a pc3200 ram. i buy that and up to this point, i never go wrong.