Is there really any benefit in terms of power consumption at idle from the Sandy Bridge / Ivy bridge line to say the Haswell/skylake line? Looking at an I3 or low end E3 for a possible NAS project that will be sitting idle most of the time.
Power consumption at idle - really any benefit?
- Thread starter Peanuthead
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Pretty easy to work out...just multiply your idle power consumption difference by the price you pay for electricity and compare the two.
A difference of just 20W for me would cost $0.1152/day, which is $3.5064/month, and $42.0768/year
You might have to make some assumptions about full system power draw if you don't physically have them, but you can definitely get a good idea
A difference of just 20W for me would cost $0.1152/day, which is $3.5064/month, and $42.0768/year
You might have to make some assumptions about full system power draw if you don't physically have them, but you can definitely get a good idea
I don't have any base lines so that is why I'm asking. I don't typically just reviews about idle power and most seem all over the place. Hence, why I like real world users reporting. From what I can remember about idle power the difference may be 10 watts on a good day. (from what limited testing I did)
I don't typically just reviews about idle power and most seem all over the place. Hence, why I like real world users reporting. From what I can remember about idle power the difference may be 10 watts on a good day. (from what limited testing I did)
Funny this comes up now... I'm working on a couple low powered nAS and desktop systems based on E3 v2, E3 v3, and both generations of the i3.
I don't think I have any SandyBridge CPUs left (e3/i3) to compare to, but they're tempting with what you can get them for... although I've seen the V2 1270s and 1280s under 200$ which I think is the SWEET spot for $/perf if you need high freq. / single core perf. I settled on the E3-1230 V2 for under $130, and I have a handful of i3s as well as the SUPER LOW E3-1220L V2 (my favorite E3 ever really) for the v3 I have a E3-1231 V3 in my test bench.
I'll let you know power #s when I build the V2 system today, and boot the v3 as it's already my bench complete system right now.
I wish v1 idled lower and/or we could get the E3-1220L V2 for <$100!
I don't think I have any SandyBridge CPUs left (e3/i3) to compare to, but they're tempting with what you can get them for... although I've seen the V2 1270s and 1280s under 200$ which I think is the SWEET spot for $/perf if you need high freq. / single core perf. I settled on the E3-1230 V2 for under $130, and I have a handful of i3s as well as the SUPER LOW E3-1220L V2 (my favorite E3 ever really) for the v3 I have a E3-1231 V3 in my test bench.
I'll let you know power #s when I build the V2 system today, and boot the v3 as it's already my bench complete system right now.
I wish v1 idled lower and/or we could get the E3-1220L V2 for <$100!
Go into the bios, enable:
Speedstep
C-states
C6/C7 states if possible
Set bios to power saving vs performance
I've seen some chips drop power consumption if you disable hyper-threading.
On my Xeon E5-2670, it's a difference of 200W idle in max perf mode, and 100W idle with power savings on.
Speedstep
C-states
C6/C7 states if possible
Set bios to power saving vs performance
I've seen some chips drop power consumption if you disable hyper-threading.
On my Xeon E5-2670, it's a difference of 200W idle in max perf mode, and 100W idle with power savings on.
A supermicro X9 motherboard, 16GB of ram, and an i3 2120 (and nothing else) idles at around 35W from the wall on a 200W psu. power supply inefficiency is actually kind of brutal at this range.
The newer platforms seem to idle at around 25W if I remember the sth reviews.
The newer platforms seem to idle at around 25W if I remember the sth reviews.
Hi T_Minus,
Did you ever get a chance to measure your power #s? Would be every interesting to see idle differences across E3 generations & series, even i3s.
Best Regards, Abq
I have a stack of 1U ready to deploy, haven't done them yet... v2, and v3.
I did just finish swapping my home AIO to a E3-1271 V3 which will be down graded to a E3-1265L V3 I've mentioned in the "Great Deal" area a few weeks ago.
I'll post power numbers when I get it running again, just a couple software things left to finish... I know it will save power over the E5-2670 V3 it's replacing LOL!!
I did just finish swapping my home AIO to a E3-1271 V3 which will be down graded to a E3-1265L V3 I've mentioned in the "Great Deal" area a few weeks ago.
I'll post power numbers when I get it running again, just a couple software things left to finish... I know it will save power over the E5-2670 V3 it's replacing
LOL!!As a datapoint on i3s...I'm running a few i3-3220 on Dell Optiplex motherboards (Very nice, sparse motherboards, very little extra fluff) with 8GB (2x4GB) Ram, SSD and just a CPU fan (which hardly runs with the i3).
On an old Antec Earthwatts 500 I had lying around - idles at ~19-20w
On a Supermicro 501p platinum - idles at 19-20w
On a Supermicro 741p platinum - idles at 23-24w
On a 90w PicuPSU with a generic 12v power brick - idles at 14-15w
On an old Antec Earthwatts 500 I had lying around - idles at ~19-20w
On a Supermicro 501p platinum - idles at 19-20w
On a Supermicro 741p platinum - idles at 23-24w
On a 90w PicuPSU with a generic 12v power brick - idles at 14-15w
Is there really a difference in the idle usage of the L vs Non L CPUs? I thought the L ones were gimped on the high side to maintain the power envelope low.I have a stack of 1U ready to deploy, haven't done them yet... v2, and v3.
I did just finish swapping my home AIO to a E3-1271 V3 which will be down graded to a E3-1265L V3 I've mentioned in the "Great Deal" area a few weeks ago.
I'll post power numbers when I get it running again, just a couple software things left to finish... I know it will save power over the E5-2670 V3 it's replacing
How do you connect those anyway? Power Brick and matching adapter cable? Never figured that out - never looked very hard either to be honest
@Rand__ you just have to make up a cable really, can’t be that hard although I have not done that specific cable before... may tell you shortly as I was thinking to do one soon, just a little fustrating that those boards only has 4 dimm vs the scalable version that’s 6 dimm so 50% more ram but e5 v4 cpu’s are cheaper and more plentiful.
Arent those cables same as the the one used in the supermicro SYS200 AND SYS300 superservers?those are available retail.
Hm product page states
DC power adapter -> MCP-250-10127-0N
Amazon has https://www.amazon.com/Supermicro-MCP-250-10103-0N-80W-DC-ATX-Board/dp/B00CMUGA0K
which looks like it would fit. Not really cheap though considered you still need a power supply...
But yes that might be it Thanks
DC power adapter -> MCP-250-10127-0N
Amazon has https://www.amazon.com/Supermicro-MCP-250-10103-0N-80W-DC-ATX-Board/dp/B00CMUGA0K
which looks like it would fit. Not really cheap though considered you still need a power supply...
But yes that might be it
Thanks