INTEL XEON E5 2695 4650 V2 IVB-E 12 CORE 2.3-2.8Ghz B1 stepping

Per the seller, your board (QRi-F+) supports it with a prerelease BIOS.
 
Thanks tear.
Do you know anything about what a 4P with these will provide in folding vs standard E5-4650?
 
Something close to 1.3M PPD on non-8101....
 
This is about 100% improvement from E5-4650 V1, wow! And where do we end up regard to the power consumption? I could not find this chip on intel.com.
 
I said *non* 8101... :)

Also, remember this chip is a 2.3 GHz nominal (I figure 2.5 GHz all-core turbo, maybe a bit more), so it's probably not the fastest 12c IB-E chip out there.
 
Sorry about that, I was a little excitable and did not read everything, but reasonably good improvement anyway.
 
Hi -alias-. I think this chip is not what you need. Accroding to the hwinfo64 & cpu-z snapshot, the link you provided is referring to a 2p chip, which is not 4p compatible at all.
You should look into this one instead:
http://www.ebay.com/itm/INTEL-XEON-...98?pt=CPUs&hash=item1e818ae7fa#ht_7565wt_1146
This chip is probably 4p compatible but the price is a lit more expensive. Its QPF code is QE3G, with B3 stepping, 12C, 2.4GHz default and 2.7GHz all-core turbo frequency.
Another 4p model I know is QDDM, which is B1 stepping, 12C, and with same default/all-core turbo frequencies as QE3G.

Which motherboard is supporting INTEL XEON E5 2695 4650 V2 IVB-E 12 CORE 2.3-2.8GHz B1 stepping?

http://www.ebay.com/itm/INTEL-XEON-...ck-/131016436012?&quantity=4&autorefresh=true
 
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Intel hasn't release the E5-4600 v2 series yet. However, you can find some leaked models of E5-4600 v2 on wikipedia:
http://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors

The above ES chips (QE3G, QDDM) are best matched to Xeon E5-4657L v2, I think.
In my estimation, the maximum PPD for a 4p E5-4600 v2 rig @ 2.7GHz is about 1.55M - 1.65M.

This is about 100% improvement from E5-4650 V1, wow! And where do we end up regard to the power consumption? I could not find this chip on intel.com.
 
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Thanks quickz. I can see that seller is the same, and that he uses the same description on both, quote:

"Great value ES2 version, fully working with VT-X check hwinfo screenshot or detailed specs. you will need to make sure your motherboard support 12 core CPU, with latest bios version. for dual / quad CPU workstation, ECC Reg RAM is a must! "

The only difference as fare as I can see is stepping, frequency and price. Anyway, I choose to believe what you say, so thanks again.

Hi -alias-. I think this chip is not what you need. Accroding to the hwinfo64 & cpu-z snapshot, the link you provided is referring to a 2p chip, which is not 4p compatible at all.
You should look into this one instead:
http://www.ebay.com/itm/INTEL-XEON-...98?pt=CPUs&hash=item1e818ae7fa#ht_7565wt_1146
This chip is probably 4p compatible but the price is a lit more expensive. Its QPF code is QE3G, with B3 stepping, 12C, 2.4GHz default and 2.7GHz all-core turbo frequency.
Another 4p model I know is QDDM, which is B1 stepping, 12C, and with same default/all-core turbo frequencies as QE3G.
 
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Should be as the 2 in the start of the model number indicates 2 socket max, you have to get an E5-4xxx for 4 sockets.

True, but I wonder if these E5-26xx v2 CPUs have the extra QPI links enabled to behave as a 4P even though the model doesn't denote that functionality.

This vendor claims they are E5-26xx yet they work in their 4P motherboard in a 4-way configuration.
 
I think it's impossible to let 26xx chips work in a 4p mode, only 46xx chips could do that.
However, it's not easy to judge whether a given ES Ivy-B chip belongs to the 46xx series or not. The only tool I found can do it 100% correctly is hwinfo64.The Ivy-B 46xx's codename reported in hwinfo64 is "Ivy Bridge-EP 4S", while the Ivy-B 26xx's codename is reported to be "Ivy Bridge-EP".

True, but I wonder if these E5-26xx v2 CPUs have the extra QPI links enabled to behave as a 4P even though the model doesn't denote that functionality.

This vendor claims they are E5-26xx yet they work in their 4P motherboard in a 4-way configuration.
 
I think it's impossible to let 26xx chips work in a 4p mode, only 46xx chips could do that.
However, it's not easy to judge whether a given ES Ivy-B chip belongs to the 46xx series or not. The only tool I found can do it 100% correctly is hwinfo64.The Ivy-B 46xx's codename reported in hwinfo64 is "Ivy Bridge-EP 4S", while the Ivy-B 26xx's codename is reported to be "Ivy Bridge-EP".

Per Intel specs both E5 26xx and 46xx have 2 QPI links...
What is possible is limited elsewhere if at all ...
Needs testing.
 
I did some tests about mixing of E5-2600 v1 and E5-4600 v1 processors on a 4p board (Supermicro X9QR7) several months ago. It's found any 2p configuration combinations would work fine (incuding 2600 x2, 4600 x2, and 2600 x1 + 4600 x1). 3p or 4p configurations only involving 4600s also works well. However, any 3p or 4p configurations involving at least one 2600 processor won't work. I guess the result for the E5 v2 should be the same.
 
I did some tests about mixing of E5-2600 v1 and E5-4600 v1 processors on a 4p board (Supermicro X9QR7) several months ago. It's found any 2p configuration combinations would work fine (incuding 2600 x2, 4600 x2, and 2600 x1 + 4600 x1). 3p or 4p configurations only involving 4600s also works well. However, any 3p or 4p configurations involving at least one 2600 processor won't work. I guess the result for the E5 v2 should be the same.

true... we should still try...
Also... if the limit exists ...it is artificial in nature...

If we can find the source of the limit, perhaps we can wiggle around it ... :D
 
It's QDDM, not QDMM.
And yes, I think both of QDDM and QE3G chips should work in 4p mode.
 
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