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G5 Dual core to quad core
- Thread starter Melchieor
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Yes, you can run the 2.0 and 2.3GHz dual core CPU cards in a Quad. I'm running a 2.3 in mine right now.
I’m only running a single 2.3 with it’s original heatsink until I can find a 2nd heatsink. Then both will be modified to fit and I’ll return to using the 2.5 cards.
To answer your question though, the 2.3 barely breaks 70C under full load with its giant heatsink, and that’s with the fans nearly silent at under 750 RPM.
Temps at idle. The fans are pretty silent as well . I used Kryonaut thermal paste which seems to help bring down the temps a few degrees . If you do want to try air cooling I suggest the heatsinks with copper bottom .
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Running Geekbench . I got a score of 3247. With the quad 2.5 I was getting about 200 points more .
Temps while benchmarking got to the mid 60s and quickly went down . Keep in mind I am using the heatsinks with aluminum bottom. The copper ones should fair better .
Temps while benchmarking got to the mid 60s and quickly went down . Keep in mind I am using the heatsinks with aluminum bottom. The copper ones should fair better .
It’s worth pointing out that Geekbench is not a particularly good thermal test. Try Cinebench R11.5 if you want more concrete numbers. It loads the processor more completely and for a longer period.
They aren’t modified. I just put 2 heat sinks from an air cooled unit . The problem are the screws which are just not present to hold it down to the motherboard as the board is different and not meant for those heatsinks. To ensure the cpu don’t pop out of the socket and cause a halt, I propped the two heat sinks with the top metal retainer of the LCS on the side of the bottom heatsink (cpu B). For screws I used the black screws that come witg the daughter cpu cards to tighten them down to the heat sink and have adequate contact. Honestly it’s not the best approach , it’s better to use a saw to cut heat sinks from the dual core version and cut the metal retainer on the bottom which screws the heatsink to the motherboard but I don’t have a saw to do that . Either way , my version works just not optimal .
Ah ok, this is the first time I’ve seen an air cooling conversion on a Quad using single core heatsinks. Very interesting.
I have 2 dual core 2.0 sitting on a shelf when the pump goes out on my quad. So far ive been lucky but I look closely, I keep the cover off the pumps so I can keep an eye on it.