Intel Xeon L5639 Hexa(6) Core LGA1366 Price:US $79.80 Used Ebay Seller

this is how the speedstep / turbo works on this cpu,

if 1 or 2 cores/threads are used it will use 20x multi
if 3 or 4 cores/threads are used it will use 19x multi
if 5 or more cores/threads are used it will use 18x multi but it drops down to 16 if "thermal throttling" is enabled in the bios, disable it to keep it running at 18x multi


if you think your overclock is stable and you have speedstep / turbo enabled, run a test with only 2 threads and let that 20x multi kick in and see if it wont crash your pc
 
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zero2dash said:
Does not work in an EVGA X58 SLI LE rev 1.0 board. Post code FF.
Updated bios to 83 w/i7 920 (was on 75). Still no dice.

I've seen other users say they got them to work with this board but I assume they have rev 1.1 (or newer) boards.
Click to expand...

those shitty evga mobos wouldn't even detect my 920, so don't feel bad that it won't detect a xeon
 
Vielgus-Kutas said:
this is how the speedstep / turbo works on this cpu,

if 1 or 2 cores/threads are used it will use 20x multi
if 3 or 4 cores/threads are used it will use 19x multi
if 5 or more cores/threads are used it will use 18x multi


if you think your overclock is stable and you have speedstep / turbo enabled, run a test with only 2 threads and let that 20x multi kick in and see if it wont crash your pc
Click to expand...


thank you for that explanation of how it works.......wasn't exactly clear before:) do i have to have speed step enabled to get the 20 normally? cause iv always had it off before...now i have sen mine kick in to 20 before...but always dropped down when using stress testing it....but it never occurred to me to set affinity to 2 cores and to use only 2 threads...but as i try it now im seeing it stay at 18, which is good cause usually it drops to 16 running Intel stress test
 
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primetime said:
...do i have to have speed step enabled to get the 20 normally?
Click to expand...

different motherboards handle speedstep/turbo differently, but i would assume that you have to have at least the turbo enabled in the bios to get the 20x multi

it never occurred to me to set affinity to 2 cores and to use only 2 threads
Click to expand...
some test apps let you choose how many threads to run, like occt, you would only need to set affinity if you have no option to choose the number of threads, the cpu knows how many threads are running
 
idk it just seemed to load balancing until i set it with affinity to use 2 cores.....maybe at some point it would have locked into 2 cores...well at least all the cores are staying at 3.6...when doing this way....starting to make since to me now.....i expect it to pass as it seems to be running way cooler only stressing 2 threads

would be sweet if i could discover how the turbo function works with this chip....with the non xeon if memory servers me correctly we just set it to highest multiplier in bios to get turbo before...and it worked

like i said, i have seen it display 20 form time to time...not sure why yet or how to keep it there...but were making progress...and its stable so no complaints
 
After following this for weeks, I finally gave in and ordered one. We'll see how it plays with my MSI Big Bang.
 
interestingly enough if running max threads with intel burn test...all cores lock into 16...but when playing bf3 for example they pretty much all stay at 18....so at least the turbo benefits my games:) and believe it or not toward the end of the bf4 beta...i think it actually ran better than bf3 maybe cause it can use our extra cores better...got my 7970 coming in tomorrow for 220 bucks....should be awesome now!
 
disabling thermal throttling in bios seems to keep the multi at 18x all the time when all cores and threads are loaded at 100%, there is also another option that might throttle to 16x, it's called "high TDP turbo" on asus boards, keep that enabled or auto if you dont want it to throttle
 
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Is it possible getting above 20x with 2 cores + ht enabled? When I enable what looks to be turbo, it just down throttles ever so slightly.

ASUS Rampage III Gene
 
Been finalizing my chip today and if you guys run into any stability issues try upping the qpi pll. It helped tremendously in stabilizing the chip.


BurntToast said:
Is it possible getting above 20x with 2 cores + ht enabled? When I enable what looks to be turbo, it just down throttles ever so slightly.

ASUS Rampage III Gene
Click to expand...

Not possible to get above 20x. I'm unsure if you're taking about the minor clock fluxation or actual multiplier going down, but setting the power settings to "performance" on Windows and disabling power savings such as c1e should stop the downclocking.

Turbo = enables 18x
Turbo performance (might be named different on your mobo) = enables 20x
C1E = 12x to 20x, regardless of power states
Turbo with no speed step = 18x all around 100% of the time
Turbo with speedstep (Balanced mode) = 12x when idle, 18x when opening intensive apps
Turbo with speedstep (Performance mode) = #2
 
primetime said:
Is it IntelBurnTest passing and stable? I managed to reach 200 now

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Hi,
Could you post the settings for your overclock in the BIOS? I can't get mine pass 2.4Ghz. I am coming from the i7-920 at 4Ghz. I like to at least get it to 3.6Ghz.
Thanks.
 
A few hours in and I have mine at 3.4GHz @1.15V, 210 BLCK. Got mine out of Texas, Seller took $70 shipped. Ordered Thursday, was in my mailbox Saturday.
 
Bad_dude said:
Hi,
Could you post the settings for your overclock in the BIOS? I can't get mine pass 2.4Ghz. I am coming from the i7-920 at 4Ghz. I like to at least get it to 3.6Ghz.
Thanks.
Click to expand...

post your settings, are you air cooling?

my settings: running at 3.6ghz, with turbo disabled, so all cores only run at 18x max under load
cpu 1.28v
qpi 1.4v
bclk 200
memory running 1600mhz at 200bclk

i can run it at 3.8 but it's not stable, i would need to raise qpi even more which seems high already, i dont know how much qpi those cpus can handle, i know my core 2duo was running at 1.65v for few years without problems
 
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Vielgus-Kutas said:
post your settings, are you air cooling?

my settings: running at 3.6ghz, with turbo disabled, so all cores only run at 18x max under load
cpu 1.28v
qpi 1.4v
bclk 200
memory running 1600mhz at 200bclk

i can run it at 3.8 but it's not stable, i would need to raise qpi even more which seems high already, i dont know how much qpi those cpus can handle, i know my core 2duo was running at 1.65v for few years without problems
Click to expand...

I have the Corsair H50 water cooling. With the same setup I got my i7-920 at 4Ghz. What's your setting with the QPI?
 
zero2dash said:
Does not work in an EVGA X58 SLI LE rev 1.0 board. Post code FF.
Updated bios to 83 w/i7 920 (was on 75). Still no dice.

I've seen other users say they got them to work with this board but I assume they have rev 1.1 (or newer) boards.
Click to expand...

I have the same board, even the same revision, and the same exact issue. It will not detect it and boot up correctly. There are hard mods available for other EVGA boards, but I have not found anything for this one yet.
 
pgaster said:
I have the same board, even the same revision, and the same exact issue. It will not detect it and boot up correctly. There are hard mods available for other EVGA boards, but I have not found anything for this one yet.
Click to expand...

I saw a forum post on another site confirming the L5639 workin on the x58 le motherboard. They said that it worked on bios 83, but as someone said on an earlier post in this thread it may be with a later rev of this board. Might want to trt it before giving up, I bought a x58 sli le but haven't had a chance to try it yet with this cpu it didn't work initially but I didn't try a different bios yet, just have a 920 in there for now.
 
well I actually tested it stable at 212 blck running 20 intel burn tests while running MSI kombuster at same time. Here's the problem at 200blck sleep function works fine...but even 205 blck it won't wake from sleep.....it all powers up but screen never comes back on...untill i get a ssd boot drive i'll have to stick with 200 blck....can't wait for a full boot cycle every time i leave and come back.
 
Bad_dude said:
Hi,
Could you post the settings for your overclock in the BIOS? I can't get mine pass 2.4Ghz. I am coming from the i7-920 at 4Ghz. I like to at least get it to 3.6Ghz.
Thanks.
Click to expand...

What motherboard make and model are you using?...My bios settings are mostly relevant to Asus p6t series only.
 
ssnyder28 said:
I saw a forum post on another site confirming the L5639 workin on the x58 le motherboard. They said that it worked on bios 83, but as someone said on an earlier post in this thread it may be with a later rev of this board. Might want to trt it before giving up, I bought a x58 sli le but haven't had a chance to try it yet with this cpu it didn't work initially but I didn't try a different bios yet, just have a 920 in there for now.
Click to expand...

Sadly, incorrect - read my earlier post.
I updated it to bios 83 and it still did not work.

The mods I've found are all for the Classified boards...no mention of the LE.
Shamino said:
Gulftown is ok on Classified X58
Westmeres to run do 2 mods @ classified X58 - same location for 759/760/762
Click to expand...
(The LE is 757)
Source

The pinouts and the mod points do not exist on the LE board unless they're in a different spot; I looked all over the board and could not find the points nor the U30 microchip in the picture (for location) either.
xkCRpZE.png

Source

I even tried both CPU's out of fear that I had a dead cpu...the other one did the same thing. No post, code FF. I tried damn near everything. Different ram, ram slots, different gpu, gpu slot. Board booted fine with an i7 920.
I wish the people who claimed it worked would come out and acknowledge their board rev version, but at this point it looks like it's >1.0 to me.

I'm trying to find a (relatively) cheap board to test with (in the meantime until I can get an SR-2) just to make sure I'm not sitting on $140 worth of paperweights, but the cpu's do look good so I assume they work OK. That + no one's reported getting a dead one from the Texas seller (memory_more).
 
zero2dash said:
Sadly, incorrect - read my earlier post.
I updated it to bios 83 and it still did not work.

The mods I've found are all for the Classified boards...no mention of the LE.

(The LE is 757)
Source

The pinouts and the mod points do not exist on the LE board unless they're in a different spot; I looked all over the board and could not find the points nor the U30 microchip in the picture (for location) either.
xkCRpZE.png

Source

I even tried both CPU's out of fear that I had a dead cpu...the other one did the same thing. No post, code FF. I tried damn near everything. Different ram, ram slots, different gpu, gpu slot. Board booted fine with an i7 920.
I wish the people who claimed it worked would come out and acknowledge their board rev version, but at this point it looks like it's >1.0 to me.

I'm trying to find a (relatively) cheap board to test with (in the meantime until I can get an SR-2) just to make sure I'm not sitting on $140 worth of paperweights, but the cpu's do look good so I assume they work OK. That + no one's reported getting a dead one from the Texas seller (memory_more).
Click to expand...

I bought two off the same ebay seller and they came in nice shape. I only tried one so far and it works great.
 
Yes, my EVGA X58 LE Rev. 1.0 has the latest 83 bios but it just won't work.

I also got my L5639 from the guy in Texas and it works fine in a X58 sabertooth. Unfortunately triple channel memory wasn't working on the sabertooth and after a lot of troubleshooting I just noticed a bent pin/contact in the last ram slot. When looking down you can see the top tip of the contact and one of them isn't in line with the others. It's away from the slot and looks like it wouldn't touch the ram. I have an RMA number and will send it back in the next day or two.
Great board, just bought it as a refurb recently. Hope they have another to give me in it's place. Going from 133 to 200 BLCK on that board with the L5639 was real easy.
 
I have 2 ASUS X58 Rampage Gene III boards and 2 EVGA Classified X58 boards. On the verge of upgrading them all to these Xeons..
 
I got two 5649's and an SR-2 for $650 :) And i ordered the 5639's from the seller in Texas before i ran across the deal, so ill have two sets of chips to test out...Oh and forgot i grabbed two 5520's for about $50 just because. I need another PSU and some video cards.
 
We should all select a single way to benchmark our system to determine how our performance is compared to others....would passmark be best for this?
 
WorldExclusive said:
I love it when awesome threads like this pop up.

I'm buying two of these later today and a SR2.
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Gave up on the Mac eh? :D

SunnyD said:
Good luck with that. At least for a "reasonable" price.
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They usually go for $300-$350 on eBay unless the auction goes above what it probably should. They're $400 new (after rebate) at NewEgg right now.

When I bought mine before I paid $520, only because there was a 15% off Intel server motherboard coupon at NewEgg that dropped the price there (down from the standard $599 at the time). At this point $400 is probably cheap enough on the board and as cheap as they're gonna get. They have not sloped down in resale as much as you'd figure they would have at this point, but that's because it's an enthusiast product that still has a following and if you want to OC a Xeon or run SLI on a 2P setup, it's the only option you have. If it wasn't for the SLI (especially), I'd have bought a 2P Supermicro board already.

Word of warning to new or potential SR-2 owners - taper your expectations. Yes the board will OC, yes it's (somewhat) easy....however they are picky f!@#$ers and you will NOT yield an OC on an SR-2 that you might achieve on (one) of the same CPU's on an X58. I was able to run 200bclk on my old SR-2 fairly easily, but getting >200 is very very hard and seems to be limited to a certain few specific SR-2 boards....again, they are very picky boards. I was able to do 203 on L5640's but the added voltage was not worth it for me.

WorldExclusive said:
Black Friday is my hope. TigerDirect had them for $300-325 last year.
Click to expand...

Thanks for the tip. ;)
 
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zero2dash said:
Gave up on the Mac eh? :D


Thanks for the tip. ;)
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Yes I gave up. $2999 for a Quad Core Mac Pro is a joke. Not to mention all of the accessories.
I'm still getting a 15" Retina though, at least that comes with a screen and PCIe. Good to have two OSs to test on.
 
Holy crapola, I cant wait to do this on my rig. Breathe new life into my old school i7 920 X58 setup. :D
 
Vielgus-Kutas said:
primetime said:
Keep at it...your almost there!!!!!!

can you post screenshots of your bios settings?
Click to expand...


I have done so before....but I have changed some bios settings and after im done with Intel stress test...i put more up....here is my passmark score which gives you the real picture of performance as the multipliers don't stay at 20x and even then its only 2 that go that high...my screenshot from earlier looked better than it really performed :)

run pass mark yourself and you probably do better than me:eek:
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ready for the funny part? I have to have all c-state (power saving) options turned on to get the 20x multiplier.....and i can reach 212 blck (18xmultiplier only since wont boot with cstate on at 212) stable but not with cstate on...so its kinda a wash or at least they score the same in passmark...one option has higher multiplier, the other has higher blck but at least maintains a higher speed under full load...its like its really only holds the 20x when core is idle.....no idea why it was holding at 20 for the screenshot i did earlier with occt.......sometimes it will...but usually not
Click to expand...
 
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zero2dash said:
Sadly, incorrect - read my earlier post.
I updated it to bios 83 and it still did not work.

The mods I've found are all for the Classified boards...no mention of the LE.

(The LE is 757)
Source

The pinouts and the mod points do not exist on the LE board unless they're in a different spot; I looked all over the board and could not find the points nor the U30 microchip in the picture (for location) either.
xkCRpZE.png

Source
Click to expand...

Are those the only pinouts that need to be shorted on an E760 Classified Rev 1.0? I keep reading about "two" mods that need to be done on an E760 Classified, but I only can find pictures of this one mod. I don't consider a BIOS update a mod... Any E760 Classified owners out there that can confirm this?
Thank you!

7th Angel
 
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NickJames said:
I have 2 ASUS X58 Rampage Gene III boards and 2 EVGA Classified X58 boards. On the verge of upgrading them all to these Xeons..
Click to expand...

make sure to update the Rampage III gene to the 1003 bios.

Otherwise it works perfect :)
 
Got mine in... no matter what I set it to, I can not get it to boot at all if it is above stock.

Very disappointed so far... anyone with a Gigabyte EX58 board get this working? If so, what settings did you use?

I've tried lowering / raising the QPI, CPU voltages, everything. Tried it at even 150 BCLK, and it still refused to boot. At this point, I may end up just going back to my i7 920.
 
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