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1366 X58 Xeon 5650

Thanks for the replies, i may have another play around with the bios at some point and see what i can do. my volts at 1.35 i are not too bad but less is always better.
 
Someone earlier in the thread said 1.35 V for the 32 nm Westmere-EP/Gulftown chips, 1.4 V for 45 nm Bloomfield.
Must have missed that one.
1.35v absolute max on the QPI. 1.35-1.4v on the CPU but if you want to be safe 1.35v

Thanks, i have not done any over clocking of this type for a long time do you have any advice on settings,

Running x5650 - ex58-ud5 - 12gb of team lv 2666mhz.
I have been told i will have to run the ram at 1600mhz becuse of support.
 
I'm running the same mobo CPU but different RAM - my settings from a few pages back for a 4GHz Overclock are:


Gigabyte X58-UD5, F13 BIOS (I had to restore recommended / safe settings first)

CLOCK RATIO 20 X
QPI CLOCK RATIO X36 - 7.2GHZ
UNCORE CLOCK RATIO X17 3400MHZ
BCLK FREQUENCY 200
XMP DISABLED
MEMORY MULTIPLIER 8 @1600
PCI EXPRESS 101
CIA2 DISABLED

CLOCK DRIVE 800
PCI CLOCK DRIVE 900
CPU CLOCK SKEW 0

VOLTS
LLC ENABLED
CPU VCORE 1.30625
QPI/VTT VOLT 1.255
CPU PLL 1.8
DRAM VOLTS 1.66

TURBO OFF
CORES ENABLED ALL
MULTI THREAD ENABLED
CPUT ENHANCED C1E ENABLED
C3 C6 C7 DISABLED
CPU THERMAL ENABLED
CPU EIST ENABLED
BIDIRECTIONAL PROCHOT ENABLED

Complete Intel Burn with C1E, C3C6C7 and EIST off first since if it's on, it will be throttling your CPU during the test, you want it stable under load with no throttling first. Once proven you can re-enable them.
 
Well looks like i just joined the club. X5650 installed along with 16gb 1600mhz Corsair vengance of ram in my old EX58-UD3R. I figured less than £50 to replace my old I7 920 heat monster, i though bargin.

Had to update the bios as I was using an old F6 bios but F8 and later should work. I did have a minor trouble as a USB bloodtooth adaptor of mine was that i have on my monitors USB hub was locking up the F11 bios I intially picked. That was frustrating.

No overclocking yet, but it does appear to be more stable and work better than my old I7 ever was at stock, turbo on that bad boy seemed to cause havoc and instability. I'm not in need of the extra speed really at the mo , but i did need the ram. If i had the a decent wad of cash I would have probably gone for an LGA 1150 4790k or a 5820k x99 setup. It's hard to justify when i rarly use my CPU for much.
 
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If bu havoc you mean its unstable under turbo it could be down to the 1600mhz ram, lots of ppl have found anything over 1333 can be a pain in the ass.
Also what sticks are you running for 16gb that an od number for triple channel
 
I used to run a tripple channel kit OCZ stuff 3x6gb,

My board only has 4 ddr3 slots, I stuck 4x4GB Coasair Vengeance kit ( CML16GX3M4A1600C9) in and let the board operate in flex mode. If it impacts memory performance I can always take 1 out and run with 12GB which should still be plenty.

If i do start getting the urge for more, it's still good for Lga 1150 socket boards anyway.

You do make a good point there, I'm running the memory at 1333 currently.
 
YAY! my chip came today. i am now in the Xeon club X5650
Am going to lap the CPU tomorrow at work as the top is visibly not the flattest i have ever seen, then i will drop it in with Genoma setting and see how it holds up, i may max out vcore drop to x16 and see where it stops booting.

@ Ragnarok, i have also see a few posted in the googles, where when memory is run at 1.5 or under again the xeon's dont like it. and when your went to 1.65 the system stabled up a lot.
 
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Regarding the memory voltage, in my current i7 setup, I have OCZ 1333 memory... the BIOS defaults to 1.5v, but the memory specs say 1.65v... so I run 1.65v and I recall it made a difference to stability (it has been a while since I tweaked settings).
 
True... I actually have mine at 1.64v. Very weird that they don't have 1.65.

I meant, I have been running mine at 1.51 for its entire life.

The boards have 1.643 and 1.65625. so rounding makes it looks like 1.64 and 1.66. but considering droop, i find setting it the marginally highger equates to the correct voltage, so i guess thats why they chose those steppings, or its just a case of "its close enough"
 
I meant, I have been running mine at 1.51 for its entire life.

The boards have 1.643 and 1.65625. so rounding makes it looks like 1.64 and 1.66. but considering droop, i find setting it the marginally highger equates to the correct voltage, so i guess thats why they chose those steppings, or its just a case of "its close enough"

I've not looked at the droop, but 1.64v is close enough in my books. Certainly more stable than 1.5v. Given the spec on the memory is 1.65v, I see no reason to undervolt.
 
I'll keep that in mind 1.65v or there abouts to keep things stable.

right now at 1333 it seems happy at 1.5v still slightly annoyed i missed out on the Samsung green stuff a year or 2 ago when a 4x4gb kit could be had for around £100 right here at ocuk.
 
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