farscapesg1
2[H]4U
- Joined
- Aug 4, 2004
- Messages
- 2,648
We decided to retire some older servers that are out of warranty at work so I grabbed a couple to play with. My home servers are getting a little constrained due to memory (32GB with a Xeon X3440 and only 24GB with a Xeon E5640 in the second host).
I grabbed a couple Dell R710's with dual Xeon X5650 procs and 96GB RAM (4 onboard nics, extra 2 port PCIe nic, dual single port 4GB fiber cards, 8x 2.5 drive bays, 2 146GB 15k SAS drives). Hey.. for free can't beat it right?
The problem comes down to worrying about power consumption since they will be at home running 24/7. I use my existing servers for lab/training (really need to get more certs) as well as some home 24/7 uses (untangle, SageTV/Media Center PVR, 2012 Server Essentials for PC backup, torrent/usenet, plex server, vcenter).
My current E5640 system runs at about 80W idle and I've gotten the R710 down to around 125W idle by dropping it to 64GB RAM, taking out the fiber cards, and replacing the two SAS drives with SSD drives. I still need to tinker with it, but I'm trying to decide if replacing the X5650 procs with L5640 ones from ebay would be worth it for energy savings vs the decreased performance, since they will be on 24/7 but the CPUs won't see more than 10% usage (if that) for 95% of the day. At 60W TDP versus 95W TDP, at full load that would only be about 70W difference, or about $6.50 a month per server at 12 cents/kwh, so the procs would pay for themselves (about $65 each on Ebay) in approximately 2 years... if running at full power 24/7. However, what I can't seem to find is a good comparison of idle power usage between the two procs to determine if my low load requirements would make a difference in power consumption.
TLDR;
Anyone know the idle power differences between dual L5640's vs dual X5650's?
I grabbed a couple Dell R710's with dual Xeon X5650 procs and 96GB RAM (4 onboard nics, extra 2 port PCIe nic, dual single port 4GB fiber cards, 8x 2.5 drive bays, 2 146GB 15k SAS drives). Hey.. for free can't beat it right?
The problem comes down to worrying about power consumption since they will be at home running 24/7. I use my existing servers for lab/training (really need to get more certs) as well as some home 24/7 uses (untangle, SageTV/Media Center PVR, 2012 Server Essentials for PC backup, torrent/usenet, plex server, vcenter).
My current E5640 system runs at about 80W idle and I've gotten the R710 down to around 125W idle by dropping it to 64GB RAM, taking out the fiber cards, and replacing the two SAS drives with SSD drives. I still need to tinker with it, but I'm trying to decide if replacing the X5650 procs with L5640 ones from ebay would be worth it for energy savings vs the decreased performance, since they will be on 24/7 but the CPUs won't see more than 10% usage (if that) for 95% of the day. At 60W TDP versus 95W TDP, at full load that would only be about 70W difference, or about $6.50 a month per server at 12 cents/kwh, so the procs would pay for themselves (about $65 each on Ebay) in approximately 2 years... if running at full power 24/7. However, what I can't seem to find is a good comparison of idle power usage between the two procs to determine if my low load requirements would make a difference in power consumption.
TLDR;
Anyone know the idle power differences between dual L5640's vs dual X5650's?