Hi guys, I have taken a quick look at the FAQ sticky, but still not 100% sure on this. I have salvaged an Apple PowerMac G5 that was about to be scrapped at work. It's a PowerMac7,3 according to System Profiler, and it's a dual 2.0GHz G5 model (2004, I think?). From what I understand, it takes 184-pin PC3200 400MHz memory with a max of 1GB per slot. We don't really use Mac's at work, these were passed on from another department, but I've been raiding the stock and we have some spare 1GB sticks from our old HP Compaq D530 machines, which is Kingston RAM labelled as KTH-D530/1G. From what I can work out, it is 184-pin PC3200 400MHz memory. The sticky mentions about it being low density though, and I'm struggling to find out if it is low density. I paired two sticks in the Mac last night and they didn't work, it didn't even recognise they exited... but knowing the kit we have, it's highly likely that the sticks were dead anyway. The machine isn't near me to test these at the moment, but will be having a go this evening with them. Does anyone know if these will, or more should, work with my PowerMac? Thanks, Mike.