Freezing and OC issues\questions

[ezcharlie]

The E5-1620 v2 the OP is running does have an unlocked multiplier.


Here's a list of Xeon CPUs with unlocked multipliers according to overclocking results from HWBOT:

Bloomfield:
W3570 (source)
W3580 (uncertain)

Gulftown:
W3680
W3690

Gainestown:
W5580 (most probably not unlocked, despite of one CPU-Z validation; please see also https://forums.servethehome.com/ind...h-an-open-multiplier.15983/page-5#post-209642)
W5590 (most probably not unlocked)

Sandy Bridge-EP:
E5-1620 (source - max CPU multiplier is 43, just like the i7-3820)
E5-1650
E5-1660

Ivy Bridge-EP:
E5-1620 v2 (source)
E5-1650 v2
E5-1660 v2
E5-1680 v2

Haswell-EP:
E5-1650 v3
E5-1660 v3
E5-1680 v3

Broadwell-EP:
None

Skylake-W:
W-3175X

I've been running an overclocked E5-1620 Xeon for 6 years or so in an X79 rig:

That's the exact list I saw when i was thinking of which Xeon to get!!!

This is my Xeon



The mult values toggle from 37 to 39 but never once goes to 40 like cpu-z detects it should be able to go to.
I followed the Ivy bridge overclocking guide in EarthDog's sig but nothing works :-(

 

[trents]

Sorry, I got a little dyslexic there and confused the one he had been using with the one he swapped to.