G5 memory questions

[masterjedi73]

hey there -

i want to add memory to my power mac g5 tower. (dual 1.8) but I don't know which kind to get....do i have to add it in pairs? how do i tell?

thanks

 

[Sun Baked]

Dual channel memory -- requires pairs of DIMMs that meet the minimum spec.

Machine looks at both DIMMs as one big DIMM.

 

[masterjedi73]

Dual channel memory -- requires pairs of DIMMs that meet the minimum spec.

Machine looks at both DIMMs as one big DIMM.

So is that definitely what i have? it says on some of the memory sites that somes G5s have four dimm slots and others 8. I'm pretty sure mine has 8, but want to verify.

 

[CanadaRAM]

Easy enough to look in the G5 and count the sockets. It depends on the age of your machine.

PC RAM is not necessarily compatible -- Look for RAM from a reputable vendor who tests and guarantees comptibility with your model Mac, offers a lifetime warranty and a no-cost return if it doesn't work.

Thanks
Trevor
CanadaRAM.com

 

[yg17]

I got some Mushkin off of NewEgg for my PMG5. Works great.

 

[Sun Baked]

So is that definitely what i have? it says on some of the memory sites that somes G5s have four dimm slots and others 8. I'm pretty sure mine has 8, but want to verify.

As I said before...

PowerMac G5 = DIMMs in PAIRS

4 DIMM or 8 DIMMs do not matter, all PowerMac G5s use memory in pairs -- due to dual channel memory.

Single channel is 1 DIMM installed at a time, the PowerMac G5 is NOT one of these machines. Therefore install 2 at a time.

 

[masterjedi73]

As I said before...

PowerMac G5 = DIMMs in PAIRS

4 DIMM or 8 DIMMs do not matter, all PowerMac G5s use memory in pairs -- due to dual channel memory.

Single channel is 1 DIMM installed at a time, the PowerMac G5 is NOT one of these machines. Therefore install 2 at a time.

OK. thanks. I was at the apple store today and i told the salesperson that i wanted 1 gig of ram. he offered me a 1 gb stick, or two 512s. That's why i was confused. I told him that i thought they needed to be in pairs, and he said no.

thanks.

 

[Sun Baked]

OK. thanks. I was at the apple store today and i told the salesperson that i wanted 1 gig of ram. he offered me a 1 gb stick, or two 512s. That's why i was confused. I told him that i thought they needed to be in pairs, and he said no.

thanks.

Like car salesman, don't trust them with all their answers -- they could have been salesman at the Gap last week.

The iMac G5 is either/or.

If this keeps happening (seems you're not the only one) -- all the more reason to avoid Apple like the plague for memory upgrades, besides the insane cost.

Basically the Apple PowerMac G5 Developer Note -- RAM Expansion is much more trustworthy than a salesdrone.

 

[FFTT]

Your dual 1.8 GHz machine only has a total of 4 DIMM slots.

It can hold a total of 4 GB RAM with 2 matched pairs
of 1 GB DIMMS

You currently have 2 of your total 4 DIMM slots occupied with the stock RAM.

If you go to Crucial you need to select your model
and the appropriate offerings will be displayed.

Same thing with OWC ( www.macsales.com.)
They sell factory original Apple/Samsung RAM

If you want to add a total 1 GB you need to purchase
a pair of 512 sticks.

RAM has gotten so affordable, you might want to hold off till you can afford a pair of 1 GB sticks
and ramp that puppy up another 2GB.