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Xeon Hacking and Overclocking X79/X99 [Beyond X58] - Page 34

post #331 of 1531
I think someone should buy one of THESE (link to ebay listing) and play around with it. 2.00 Ghz stock with a 2.50 Ghz max boost speed. 16-cores / 32-threads for $399? That would be insane for a workstation / folding build. Anything below 3.0 Ghz is terrible for gaming though unfortunately.

- Insan1tyOne tongue.gif
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post #332 of 1531
Insanity, may I ask why you're running a 4 core CPU in an X99 system? Sounds.. well, absolutely insane it sounds tongue.gif
post #333 of 1531
post #334 of 1531
Thread Starter 
Quote:
Insanity, may I ask why you're running a 4 core CPU in an X99 system? Sounds.. well, absolutely insane it sounds

Seems sensible to me, 4 cores, 15Mb of L3... What clockspeed is it at? It's locked, right?
post #335 of 1531
Quote:
Originally Posted by CrazyNightOwl View Post

Insanity, may I ask why you're running a 4 core CPU in an X99 system? Sounds.. well, absolutely insane it sounds tongue.gif

To tell you the truth I got the CPU for three main reasons:

  1. It was pretty cheap considering comparable CPU prices at the time. I paid $280 for the 2637 V3 when at the same time 5820k's were selling for around $400. (Keep in mind that the retail price of a 2637 V3 is $1000)
  2. The 2637 V3 has 40 PCIE lanes versus 28 PCIE lanes on the 5820k.
  3. It has the highest stock clock of any Xeon I've seen at 3.5 Ghz. (It still isn't great for gaming, but I'm looking at upgrading soon.)

And some other reasons that I probably don't remember. But yeah, I am looking at upgrading to one of the 4.4 Ghz 6800k's from Silicon Lottery soon if I can. I need that extra single core-performance for games unfortunately. I'll also probably grab a 3200 Mhz 32GB DDR4 kit while I'm at it as well.
Quote:
Originally Posted by gofasterstripes View Post

Seems sensible to me, 4 cores, 15Mb of L3... What clockspeed is it at? It's locked, right?

Yeah, it is a great little CPU all things considered. It has a lot more features than a standard 4-core i7. But yes, it is 100% locked as far as I can tell. The only way I would be able to overclock it would be by manually bumping the BCLK and FSB frequencies. That method is really hit or miss and probably would only gain me ~ .1 - .3 Ghz anyways. I would rather just leave it at stock clocks with the TurboBoost enabled so it can boost up to 3.7 Ghz instead. That way I don't have to worry about frying anything by accidentally overheating the FSB.

EDIT:

Check out what I gathered up today everyone:

X99 ES CPU / Motherboard Compatibility List! (Click to show)

System Compatibility (Updated 6/11/2016):


The following is a list of products that we have tested to be compatible with ES CPUs:


Servers & Workstations:

  • Dell: PowerEdge R430/R530/T430 (BIOS 2.0.1), R630/R730/R730XD (BIOS 2.1.6), M630/FC630/M630 VRTX (BIOS 2.1.6), T630 (BIOS 2.1.5), C4130 (BIOS 2.1.5), C6320 (BIOS 2.1.5); Precision T5810 (BIOS A12), T7810 (BIOS A12), T7910 (BIOS A12), R7910 (BIOS 2.0.3)


Motherboards:

  • Supermicro: X10S series (all models with BIOS R2.0), X10D series (all models with BIOS R2.0), C7X99-OCE (BIOS R2.0)
  • Tyan: S562 series (BIOS V2.00), S707 series (BIOS V2.00), S708 series (BIOS V2.00)
  • Asus: Z10PA-D8 (BIOS 3107), Z10PE-D16 (BIOS 3104), Z10PR-D16 (BIOS 3104), Z10PE-D16 WS (BIOS 3204)
  • ASRock: EPC612 series (all models with BIOS 2.10), FH-C612NM (BIOS 1.10); X99 series (all models with BIOS 3.00 or above)
  • MSI: X99 Godlike Gaming Carbon (BIOS 2.3); X99A XPower Gaming Titanium; X99A Gaming Pro Carbon (BIOS 1.1); X99A Gaming 9 ACK (BIOS 3.4); X99S Gaming 9 AC (BIOS 1.B); X99A XPower AC (BIOS A.5); X99S XPower AC (BIOS 1.B); X99A/S Gaming 7 (BIOS H.E); X99A Raider (BIOS P.4)
  • EVGA: X99 Family (all models with BIOS 2.01 or above)


Note: A BIOS upgrade may be necessary for motherboards manufactured prior to the introduction of the Xeon E5-2600 v4 series.


The following is a list of products that we have tested to be incompatible with ES CPUs:


Servers & Workstations:

  • HP servers and workstations: support V4 processors with B0/M0/R0 stepping only


Motherboards:

  • Asus X99 series (all models): stuck at Q-Code 19 after reboot; supports V4 (pre-)QS or production processors only
  • Asus Z10PE-D8 WS (BIOS 3204): cannot power on when the 2nd CPU is installed; supports V4 (pre-)QS or production processors for dual-CPU configuration
  • Gigabyte X99 series (all models with BIOS F22): boot loop; support V4 processors with B0/M0/R0 stepping only
  • MSI X99 series (all models with BIOS released prior to 05/23/2016): boot loop; support V4 processors with B0/M0/R0 stepping only


Note: Please look for V4 QS (not ES2) processors that are compatible to these products instead. QS stands for "Qualification Sample." These CPUs are generally more widely supported than their earlier ES2 "Engineering Sample" versions.

Note 2: Production Intel processors have 5 letter S-Spec numbers starting from S. Engineering (ES) and Qualification Samples (QS) of Intel processors have 4-6 letter specification numbers starting from Q.

- Insan1tyOne tongue.gif
Edited by Insan1tyOne - 6/24/16 at 5:35pm
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MiniNova
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post #336 of 1531
Oh, indeed I've only considered the core count, now I see. Why do you guys pursue 40 PCI-E lanes? E.g. with an mITX board, SLI is impossible, and even then, 8 PCI-E 3.0 lanes appear to be enough for Iost of the GPU's unless you're on a high resolution, aren't they? That way, are the 40 lanes required mainly for the setup to be future-proof?

Other than that, what are the interesting CPU's to hunt for on ebay for X79 and especially X99 these days? As for gaming, I'm interested in Bf3 and BF4 mainly, the resolution being 1080p, and as for real work, it's about programming, graphics, etc., so a higher core count or, in another words, decent parallel performance is a big bonus. Currently I'm on X5650 but the main board is now dead, and this one is just a temporary replacement. Got a spare 3930K, thinking about selling it and getting something hotter. tongue.gif
post #337 of 1531
2690v2
@CrazyNightOwl
post #338 of 1531
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post #339 of 1531
Quote:
Originally Posted by CrazyNightOwl View Post

Oh, indeed I've only considered the core count, now I see. Why do you guys pursue 40 PCI-E lanes? E.g. with an mITX board, SLI is impossible, and even then, 8 PCI-E 3.0 lanes appear to be enough for Iost of the GPU's unless you're on a high resolution, aren't they? That way, are the 40 lanes required mainly for the setup to be future-proof?

Other than that, what are the interesting CPU's to hunt for on ebay for X79 and especially X99 these days? As for gaming, I'm interested in Bf3 and BF4 mainly, the resolution being 1080p, and as for real work, it's about programming, graphics, etc., so a higher core count or, in another words, decent parallel performance is a big bonus. Currently I'm on X5650 but the main board is now dead, and this one is just a temporary replacement. Got a spare 3930K, thinking about selling it and getting something hotter. tongue.gif

Honestly, I'd probably keep the 3930k and watch for a deal on a board.

If you are doing a lot of rendering and depending on the type of programming then maybe more cores would be worth it, but if it's mostly gaming then better IPC is more important.

If you go to a lower clocked chip it may feel slower than your x58 system in desktop use.
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post #340 of 1531
In general, yes, a possible lack of IPC is my main concern. You see, I've calculated the following (best case scenario, a 2690 v2):

3.2 * 1.3 * 1.05 = 4.36, which is above my X5650's 4GHz. The numbers are base clock, Westmere to Ivy IPC, and FSB overclock respectively. Is that a valid calculation in your opinion?

Also, does it make sense to go for an Ivy six-core over a Sandy six-core, and if yes, why?
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