Moderators: hgm, Rebel, chrisw
I think, you are correct, EVGA and SuperMicro are having a poke at the customer by having as the selling feature for their motherboards "support for Overclocking for E5 series Xeons", when all E5 series Xeons released are strap locked and multiplier locked!NATIONAL12 wrote:I repeat,
TU, some extra research I did confirms your advice.NATIONAL12 wrote:do not buy yet.
None of this new stuff is as fast as my 2x5680's o/c to 4.2 on SR2 motherboard.
You cannot O/C these cpu's.
This is not correct. But many are repeating this on forums. What is true is most Xeon CPUs are locked, but a few ("enthusiast") Xeon models are supplied unlocked. All part of Intel marketing strategy (TM).jdart wrote:As far as I know no Xeon chips are overclockable
Dragulic wrote:First, may I introduce myself to this learned and distinguished forum? I am a research engineer with limited brains but still more limited money to spend on my hobby of Chess and Go.
So to my question. For chess research and other, gp uses, I am now ready to spend $8k on a Windows PC, now. I plan (all parts are shipping already):
2 x E5-2687W Intel Sandy Bridge Xeon S2011 CPUs. 8 Real Cores per CPU. Here http://www.tomshardware.com/reviews/xeo ... ,3149.html is the review. It will run all 16 cores at 3.4GHz in turbo mode, even before overclocking. Today many top engines are not so good above 4 cores, but soon this can change.
64Gb Corsair PC3-12800 (1.6GHz) DDR3 Quad Channel RAM (4 x 16Gb). This gives 4Gb per real core. Ideal?
SuperMicro X9DAi motherboard with SATA III 6Gb/s, PCI-E 3.0. Here http://www.supermicro.com/products/moth ... /X9DAi.cfm are the specification.
SSD HDD for fast EGTB access, capacity to be researched but I think 0.3Tb is enough, I can move needed EGTBs from main HDD as needed. Big SSD/array are still too expensive.
Top-end air-cooling. Or?
Rest can be obvious, Windows 7 64 bit Ultimate (8 will be bad, microsoft alternation good-bad-good-bad-), very fine 0.9kW modular PSU, some cr-p graphics card for kids, 3Gb 120Hz Barracuda HDD...
I would like commentaries, critiques and recommendations. E5-2687W looks like the real winner, but you may have more information? AMD quad CPU each 4/6-core? What chess and overclock speeds can I expect? Is there a better mobo for overclocking? Is RAM chosen a bottleneck? Other understanding error by me? Anyone else already got similar system? I can see one kburcham was considering this: http://www.talkchess.com/forum/viewtopic.php?t=41204. A Sedat Canbaz benchmark yet? Help!
TU, friends.......
Yes, but you may be out of sync? Good/Bad are relative.geots wrote: Glad to hear that microsoft alternates good-bad-good-bad!
