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1366 X58 Xeon 5650

haven't gone through the whole thread as 61 pages is a lot, but has anyone done like dual Xeon build on like a SR-2 or something and managed to overclock? And your results?

Just something I'm wondering and general information.

Cheers.
 
niggyg said:
What ram would you recommend to complement an overclock of an x5660. My 3x2GB of PC1066 are going to hold me back.

I was thinking something like these... https://www.overclockers.co.uk/cors...l-channel-kit-cmx8gx3m2a1600c9-my-290-cs.html and then try and pick up another stick for triple channel reasons. I don't want to thow too much money at RAM that I wouldn't use in a future build.
Click to expand...

Don't be afraid of running the board in dual channel. For gaming and so on it will make no difference.
 
what's the safe voltage of qpi/vtt to put through 5660, as i read that 1.3+v isn't good, but, increasing qpi/vtt lets you decrease voltage for cpu?
 
linaaslt said:
what's the safe voltage of qpi/vtt to put through 5660, as i read that 1.3+v isn't good, but, increasing qpi/vtt lets you decrease voltage for cpu?
Click to expand...

safe voltage for vtt = 1.35v

increasing vtt help to decrease cpu volt but not always or all cases

at your case you need to increase vtt for Bclk and uncor before you decide increase vtt for cpu volt

this last oc 24/7 :D

654654654465465.jpg


at 4.7Ghz i was try with cpu 1.55v no stable
 
Would a X5687 be interesting to anyone...(3.60Ghz/12M/6.40).... I'm clearing out my old bits and can put it on MM...or I'll go straight to auction... Pulled from my HP Z600 workstation so has never been clocked or messed about with... Or these already on the edge and so won't clock more?
 
essm1988 said:
last week I got kill-a-watt to test power consumption for cpu only

i found a strange numbers with prime 95

x5670 @ 4.20Ghz 1.35v = 220 TDP
x5670 @ 4.51Ghz 1.42v = 350 TDP (so much) = 560w just for system gpu(amd r9 290) idle
Click to expand...

Insane power consumption in this day and age.

Very glad I replaced my i7 920 @ 3.8Ghz with my 6700k @ 4.7Ghz 1.3v, so much quieter and cooler, oh and over double the performance to boot :)
 
My system was originally 150 W when idle, that was at 3.8 GHz. Those numbers are crazy...I wonder if that guy has C-states and SpeedStep off or something. I think the TDP of the hex-core Xeons is the same as the older quad-core Bloomfields so I imagine my idle power draw is about the same (or maybe less due to newer GPU).
 
Wow 150 watts at idle? What do the latest xeons run at? My i7 system draws 80 watts at idle, not that i often run it idle, its normally doing something.
 
BluD said:
Wow 150 watts at idle? What do the latest xeons run at? My i7 system draws 80 watts at idle, not that i often run it idle, its normally doing something.
Click to expand...

x58 systems with a 920 were always very power hungry, especially when overclocked:

Here's an article by tomshardware on this very subject:

http://www.tomshardware.com/reviews/overclock-core-i7,2268-10.html

VAzwBlQ.png


Confirming 150W at only 4Ghz on a i7 920.

Now imagine the xeon 5650 etc, with 2 additional cores, overclocked to 4.2 or 4.4Ghz....

My 6700k idles at 60w, that's when overclocked to 4.7Ghz at 1.3V, so much cooler and quiter than these x58 chips.
 
Yeah, is doesnt seem to make a difference if ya overclock them, the power saving stuff knocks the new chips consumption right down at idle. Saying that its nothing compared to a laptop, my i7 laptop idles at 40 watt and thats a sandy, i bet the skylake laptops idle at like 20 watts.
 
Just a little (edit: Flawed!) test:

Using an old socket power meter (edit: which lies), quick calibration test with a lamp, 3 bulbs, 144w, reading of 150w.

PC:

x5670 at 4.20, 1.35v, 2 SSD, 3 HDD, 780ti, xonar audio.

Idle: 80w
Prime95: 150w
Gaming (DA:I Hinterlands, vsync): 230w
Peak recorded: 350w, but not long enough to see it, during boot I think.


This is with turbo off, but also EIST off, maximum performance in Windows, CPU only clocks between two multipliers, 2.4 and 4.2GHz

Edit: Wasted some time with efficiencies and UPS readings too and concluded meter was not functioning as expected with PC.
 
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Try it with LinX. My figures with a Kill-a-watt device:

My i7 920 used 170w Idle @ stock. & Load was 270 watts with Linx.

Overclocked i7 920 @ 3.80 (Turbo on, HT On, 1.32v) = 340Watts !

I have a Xeon X5650 now and will install next week so see how it fairs.
 
Ah, old meter really doesn't like very low readings, still get 6w on a powered off microserver, so WOL mode is probably closer to 2-3w.

The load figures match (when taking into account psu efficiency) with the motherboard readings with HWINFO, 15w or so idle for CPU, 75w or so max load.
 
what PSU though? some will only have 60% or less efficiency when lightly loaded, you would need to find the efficiency curve to know real power usage.
 
Ok, some more testing, power meter is quite terrible and doesn't seem to produce accurate figures with the PC, although it's ok with other things (the bulbs, a heater).

Even I can manage to work out the watts must be wrong given the amps and voltage reading.

Out of interest I've pulled some historical figures from my UPS during gaming (PC usually plugged into it) and peak puts the PC at a little over 400w.

Need a better power meter! :)
 
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