Help with RAM in an iMac G3

[Zagreus]

Hi everyone, really need everyone's help with my iMac G3, I was recently upgrading it and I replaced the 2 sticks of 128mb RAM with 2 stick of 512mb RAM to make 1GB. However then when I powered on the machine all I got was a beep, meaning that there is no RAM detected. I then replaced the 2 128mb sticks and the machine booted fine so is it possible the RAM could be bad, or just incompatible? I brought it from eBay and it was marketed as Low Density, Non-ECC and PC133 RAM which I thought would be compatible, I also replaced the hard drive and the PRAM battery but these were fine when I powered up the machine, help please?

 

[Darth.Titan]

Depending on exactly which G3 iMac you have you may be limited to 512 MB, or you may indeed have faulty RAM.

 

[Zagreus]

Depending on exactly which G3 iMac you have you may be limited to 512 MB, or you may indeed have faulty RAM.

I don't think it's the RAM limit, having checked on Mactracker and on everymac.com it states the machine can handle 1GB of RAM, incidently my G3 is the 500mhz version.

 

[Hrududu]

Hi everyone, really need everyone's help with my iMac G3, I was recently upgrading it and I replaced the 2 sticks of 128mb RAM with 2 stick of 512mb RAM to make 1GB. However then when I powered on the machine all I got was a beep, meaning that there is no RAM detected. I then replaced the 2 128mb sticks and the machine booted fine so is it possible the RAM could be bad, or just incompatible? I brought it from eBay and it was marketed as Low Density, Non-ECC and PC133 RAM which I thought would be compatible, I also replaced the hard drive and the PRAM battery but these were fine when I powered up the machine, help please?

Just out of curiosity, who was the seller? I was looking at some cheap eBay PC133 RAM and if its from the same people, I'd like to avoid it now.

 

[Zagreus]

Just out of curiosity, who was the seller? I was looking at some cheap eBay PC133 RAM and if its from the same people, I'd like to avoid it now.

The original eBay sale is here: link. I'm gonna complain to them and see what happens, in the mean time, anyone got any more ideas?

 

[Zagreus]

In an update, I managed to get the machine to boot with one of the 128mb sticks and a 512mb stick, but when I get to the About This Mac page and head to the Memory Section it only shows as having 128mb of Memory installed, is this more evidence the RAM is bad? I am going to run Memtest and see if it can pick up any flaws, but I still haven't heard back from the seller yet. I'll update when I have some more progress