Xeon E3-1265L - what is this chip?

[J--]

I picked up one of these on eBay, but it doesn't appear in Intel ARK at all; the only processors in ARK are the 1260L V1 and the 1265L V2.

I'm not running Windows on it so I can't fire up HWinfo, is there something I can get from a linux util? The info tool on the cpustress ISO seems to state it's a Xeon E3-1265L, as was advertised.


The other issue (could be unrelated?) is there is no CPU temp showing up in IPMI, it just showing CPU temp = uninstall, but linux temp utils seem to be able to pull all 4 core temps fine. Google led me to a Supermicro support question that said to reset the IPMI, but there's been no change. Does this mean that it won't be throttling fans properly?

 

[Marsh]

My guess is
E3-1220 is without video , E3-1225 is with integrated video.
Same hold true for E3-1260 (without video ) vs E3-1265 ( with video )

 

[J--]

Hmm, that does seem to follow given the speed and core count.

 

[fractal]

ARK's search is pretty lame. Google is better. Google found Intel® Xeon® Processor E3-1265L v2 (8M Cache, 2.50 GHz) Specifications when I searched for your processor.

Looking at "/proc/cpuinfo" is the standard linux way to find out about your processor.

 

[J--]

Thanks for the tip.

Yeah, I'm not sure where these are from. The chip is marked as SR0G0. The CPUID 206A7 matches that of the other Sandy Bridge processors, excluding this particular one.

http://www.cpu-world.com/cgi-bin/CP...IGNATURE=132775&PART=&ACTION=Filter&STEPPING=


I'd like to get thermal monitoring working, although even with is loaded to the max, it's not breaching 55 deg C with the Supermicro 1U fans ~5000 rpm, so maybe I'm fretting over nothing.

Total system power seems decent @ 30w, 68.5w full CPU load in a Supermicro 1U w/ four fans blowing over a X9SCI-LN4F + 2 sticks of RAM, and a non-80 plus PSU.

 

[archangel.dmitry]

"L" series was designed to run cool .

 

[Locutis]

I have 4 servers running these chips. They are quad core 2.5 Ghz hyperthreaded beasts! I cool all of them with a Noctua NH-D14 with NO FAN. I haven't run them in Windows, my servers all run Debian 7. Without a fan, in a standard ATX case, (with two case fans in push/pull), with ambient room temperature of 21'C, mine stay at a cool 28-32'C on full load.

The 12x0 chips have no video support, the 12x5 chips have Intel video on the chip. The 'L' is low power, and they really are.

I used to have a pair of PowerMac G5 servers (11 years ago!) in our vault and they would heat the vault (about 2400 cubic feet) up to 40'C all by themselves. We had to use air conditioning. I switched those out for some dual-core Pentium E6300 which were low(er) TDP and only had to run AC during a few hot summer months.

I switched to SuperMicro boards with the 1265L-V3 chips, and the vault temps don't even fluctuate really from office ambient temperatures, they're that cool.

 

[tomaash]

Quick summary of E3-126xL 45W TDP quadcores with HT:

Sandy Bridge 32nm Socket 1155:
E3-1260L - 4x 2.4 GHz, turbo up to 3.3 GHz
E-1265L SR0G0 - the one this post is about. Intel used to have it on ARK some time back. Pretty much identical to 1260L as far as I remember. Used to run it in HP Microserver Gen8 with no issues.

Ivy Bridge 22nm Socket 1155:
E3-1265L v2 - 4x 2.5 GHz, turbo up to 3.5 GHz

Haswell 22nm Socket 1150:
E3-1265L v3 - 4x 2.5 GHz, turbo up to 3.7 GHz

 

[J--]

That 1265L v3 looks interesting.

I run a 1246 v3 as a workstation, which is almost double the TDP, and turbos only 200 MHz more. I wonder what the all-core-turbo frequencies look like.

 

[fsck]

The 1265L v3 has a TDP of 45W while the 1246V3 has a TDP of 84W.
The 1265L will clamp power usage much faster than the 1246. If all you're running is a single thread, then you probably won't see a huge difference in performance.
If you go multithread though, you'll probably find the 1246 will outpace the 1265L quite easily. Limiting heat output to 45W is quite painful if you're going for pure long-term compute power.


I wonder how much binning affects PPW of these chips for long term computes though..
Full load dT of 10-12C is pretty sweet though.

 

[raidy]

Hmm, that does seem to follow given the speed and core count.

Most important question - what is the max turbocore for 4 active cores? For 1260L it's 2.5 ghz, I wonder if 1265L (v1) can go higher.