[Official] - X58 Xeon Club -

Mine was 1.300V at 4.2GHz.

CPU World is usually accurate.
http://www.cpu-world.com/CPUs/Xeon/I...614X5670).html

X5670
Non Turbo - 22 multiplier
1 or 2 cores active - 25 multiplier
3 or more cores active - 24 multiplier

To obtain the highest turbo multiplier on an Intel CPU with a locked multiplier, you need to have C states enabled in the bios. When inactive cores enter C3 or C6, the active core or cores will switch to the highest multiplier. Some monitoring programs put too big a load on the CPU so they have a hard time reporting the highest multiplier.

Here is an example using my 4700MQ. The maximum possible multiplier is 36. ThrottleStop reports a maximum average multiplier of 35.98. There will always be some Windows background tasks waking up additional cores while benching. This reduces the maximum multiplier but 35.98 is pretty damn close to ideal.

I must be doing something wrong then. Could tõu check my settings? Maybe you have an idea how can I either lower my current vcore or move to 4.2 without having to add (much) vcore.




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To get your system to match mine in settings you need to change multi to 21, blck to 200 qpi/vtt to 1.3, vcore to 1.3, mem multi to 8, uncore multi at 18, dram voltage to 1.55. I'm pretty sure with your current setup your weak spots are your ram frequency to dram voltage and your qpi/vtt voltage is too low. However with the way you have your other multis setup your ram is being pushed higher than 1600 mhz but you aren't giving it any more voltage

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The 1.3v vcore is in BIOS or that’s what you see while stress testing?
PS. Why not go with higher multi and lower bclk?


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has anyone tried running modern 1.2v ddr3 ram on an x58?

Mine was 200 bclk with 21 multi for 4.2GHz with 1.3volts. by 8 multi for memory to run at 1600MHz, Uncore 16 multi for 3200MHz. QPI speed was 7200. QPI/vtt 1.235volts. My RAM voltage was 1.64v due to being old RAM to run at 1600MHz with timings 7-8-7-20 1T tRFC=50. Power saves were all enabled with turbo turned off inside where you enable turbo. and everything else auto in other parts of bios.

Ran like that for a few years 100% stable.

You would benefit from higher uncore for more bandwidth. Running it at 3.7Ghz for years with no issues.
As for CPU, beyond 4Ghz it usually requires exponentially more voltage and you won't really notice a difference between 4 and say 4.4Ghz as it's only 10%.

As I’ve read uncore should be 1.5x RAM freq.


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Never heard of it and never had any issues running it at 3.7Ghz which does provide higher memory bench scores.