Decided to max out the ECC RAM in a PowerMac G5 (11,2) dual core 2.0GHz. A few days and eight sticks of RAM later, the G5 boots and reports that 16GB of ECC RAM is installed. However! When I look in the Memory section of System Report, one of the sticks is listed as PC2-3200 instead of PC2-4200.
Details:
I've reached out to OWC to see if they can find a replacement stick for me but considering that it appears I've cleaned them out I'm not sure that'll happen. Honestly, I doubt there will be anything I could do with this machine that could reasonably push 12GB of RAM anyway but it would've been nice to completely max it out.
Anyone have any ideas for how I could troubleshoot this? On OWC's recommendation I did try rubbing the contacts with an eraser and then cleaning it with isopropyl, but still no dice.
Details:
- The RAM is all sourced directly from OWC.
- Even though all the RAM was sourced from OWC and has the same SKU, two of the eight 2GB sticks are visually distinct from the others with physically larger chips.
- Those two odd sticks are nearly sequential serial numbers (one ends in 58 and the other ends in 60).
- The RAM chips on those odd sticks appear to all share the same part number (Elpida EDE1108ACBG-6E-E). On the data sheet that pegs them as 128MB DDR2-667 (AKA PC2-5300) parts, which I guess makes them faster than what the G5 can even take advantage of?
I've reached out to OWC to see if they can find a replacement stick for me but considering that it appears I've cleaned them out I'm not sure that'll happen. Honestly, I doubt there will be anything I could do with this machine that could reasonably push 12GB of RAM anyway but it would've been nice to completely max it out.
Anyone have any ideas for how I could troubleshoot this? On OWC's recommendation I did try rubbing the contacts with an eraser and then cleaning it with isopropyl, but still no dice.
