agw Posted January 9, 2010 Share Posted January 9, 2010 I'm currently using an older MSI K9AGM2-FIH AM2 motherboard in my unRAID server. Normally it runs a BE-2400 processor - 45W, dual core @ 2.3 GHz. Power supply is PC Power & Cooling Silencer 500. I'm only running two drives at the moment, 4.5 beta 11. I got my hands on a 2650e processor: 15W TDP, single core @ 1.6 GHz. I was expecting that I might drop this in my board and be able to shave 20+W off my idle power draw. BE-2400 2650e 55W --- 48W --- Idle, disks spun down 68W --- 61W --- Idle, both disks spun up 89W --- 71W --- Parity check* * Currently running a parity check while streaming a dvd to a laptop, at 9% parity check progress the 2650e is doing 109,024 KB/sec (granted, only one data drive and parity) - which is similar to the BE-2400. And it's showing 96% idle as per the unMenu Top Processes view. So this is encouraging as far as cpu capability. I guess I'm a little surprised at the minimal power drop from the 2650e on this motherboard. I'm wondering if it's just not 'optimized' for the 2650e, as the board and the BIOS are a few years old and the 2650e is relatively newer? The board does not have any undervolt / underclock capability, unfortunately - otherwise I'd probably stick with the BE-2400 and try to cut it back that way. I'm going to run with this 2650e for a while and see how it works out. The numbers do suggest that it might provide more benefit in a higher power use environment. We'll see. Any comments? Link to comment
BRiT Posted January 9, 2010 Share Posted January 9, 2010 Both cpus draw minimal power when they're idle. Load each CPU to 100% usage to see and notice the real difference. Link to comment
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