Swad Posted August 26, 2006 Share Posted August 26, 2006 So my dad bought some RAM for his Power Mac G5, but when I installed it for him, it didn't show up in Profiler. It's the same speed, etc. Any ideas? The only thing I could think of is that the RAM I got is High Density, and I'm not sure if that's allowed. It's a Power Mac 1.8 single. This is the RAM I bought: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...em=130018313506 Thanks! Link to comment Share on other sites More sharing options...
gwprod12 Posted August 26, 2006 Share Posted August 26, 2006 high density? like 1gb on a single ram board? Link to comment Share on other sites More sharing options...
Swad Posted August 26, 2006 Author Share Posted August 26, 2006 To be honest, I have no idea what that means, but it's listed at the bottom of the eBay listing. It's 2 1 GB sticks, and I installed them in the two DIMM slots moving from the inside out, just like the Apple guide said (although I already knew that). Link to comment Share on other sites More sharing options...
gwprod12 Posted August 26, 2006 Share Posted August 26, 2006 Well, high-density usually means > 256megabits per chip. if you got a 1gb stick, that means 16 512megabit chips. When you installed them, system profiler didnt recognize any new memory? Link to comment Share on other sites More sharing options...
Swad Posted August 26, 2006 Author Share Posted August 26, 2006 Nope, nada. Actually still showed the DIMM slots as empty, which is really strange. I don't have another Power Mac to test them on. Link to comment Share on other sites More sharing options...
gwprod12 Posted August 26, 2006 Share Posted August 26, 2006 Try removing the original memory chip and redistributing the new chips. Then see what happens. Link to comment Share on other sites More sharing options...
bofors Posted August 26, 2006 Share Posted August 26, 2006 This is the RAM I bought:http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...em=130018313506 Apple has tight specs. for DDR-400, you can't just stick anything in there. It has to be certified Mac compatible. Apple has done their best to ensure that the out-of-box experience with their machines is as stable and as reliable as possible by controlling what parts will work with their systems. Although all current generation Macs use PC compatible DDR memory, Apple adheres strictly to JEDEC specifications and requires very strict adherence to their timing specifications for module compatibility. Apple ensures that all memory modules meet their timing requirements by not POSTing if incompatible memory is installed in the system. So, it is very important that you only use memory that's specifically made for the Mac that you're trying to upgrade. http://www.anandtech.com/printarticle.aspx?i=2359 Link to comment Share on other sites More sharing options...
gwprod12 Posted August 26, 2006 Share Posted August 26, 2006 It could also be that the memory is bad. Link to comment Share on other sites More sharing options...
bofors Posted August 26, 2006 Share Posted August 26, 2006 It could also be that the memory is bad. Whatever, Mash just send that stuff back. Try looking here, Mac RAM is more expensive for a reason: http://dealnews.com/memory/prices/systems/...0633/1GBx2.html Link to comment Share on other sites More sharing options...
gwprod12 Posted August 26, 2006 Share Posted August 26, 2006 I'd still play around with it to make sure that it isnt just a matter of the correct memory configuration. Link to comment Share on other sites More sharing options...
Swad Posted August 26, 2006 Author Share Posted August 26, 2006 Yeah, I'll mess with it tomorrow. The problem with buying RAM from dealram et al is that it's so much more expensive - I got a good deal on eBay. Oh well, that may be what it comes to. I'll let you know how it comes out. If anyone has any more thoughts, feel free to pass them along. Link to comment Share on other sites More sharing options...
A Nonny Moose Posted August 26, 2006 Share Posted August 26, 2006 Mac OS X is super picky when it comes to RAM. I mean SUPER PICKY. I had a 512 stick in my iMac G3 and it went yucky. It showed up under OS 9, but it made OS X scream like a girl and refuse to start up. After doing everything possible without removing the RAM (including resetting PRAM and reformatting three times), I had to remove the RAM. Thankfully it was replaced and I've never had a RAM problem since. Link to comment Share on other sites More sharing options...
selectodude Posted August 26, 2006 Share Posted August 26, 2006 I never order my RAM for Macs from anyone other then Crucial. They're just to weird about RAM, and it's not something I want to mess with by getting crappy RAM. Link to comment Share on other sites More sharing options...
hanschien Posted August 27, 2006 Share Posted August 27, 2006 I order all of my ram through newegg.com. I just browse through the comments to see if people had any compatibility issues with the ram mobules. Link to comment Share on other sites More sharing options...
Swad Posted August 27, 2006 Author Share Posted August 27, 2006 Alright, so it looks like I'll have to send the RAM back for a refund. Here's what I'm thinking about doing. Since the Mac already came with 256 x2, what about buying 6 more 256 sticks? That way, for 130, I could bring the total RAM up to 2 GB. I'd buy them from here, found via dealram: http://dealnews.com/memory/ramclick.html?231378 Sound like a good idea? Link to comment Share on other sites More sharing options...
bofors Posted August 27, 2006 Share Posted August 27, 2006 Sound like a good idea? That's fine. 2GB should be all you need anyways. 18004Memory.com is a good vendor, they provide a lifetime warranty on the RAM. But don't forget to test your RAM upon receipt with Rember: http://www.versiontracker.com/dyn/moreinfo/macosx/24508 I got a bad module from 18004Memory once, but I did not relealize that it was the cause of my G5's problems for months. Link to comment Share on other sites More sharing options...
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