Xeon L5639 Overclocking on X58

[LotharX]

Does your bios look like this? If so you're good to go with these settings.

Welcome to the forums

Yea, exactly like that. I'm glad to be here ty.

It doesnt matter then if cpu-z shows 22x ratio and 4ghz + the same voltage, it does consume less power? I had a sandy bridge i5, it was a bit more straightforward on voltage and ratio parametering while in idle. I do know it is 1 generation younger, but...

 

[CropDuster]

It should downclock with speed step enabled and drop the voltage if you're using offset.

 

[YBS1]

Yea, exactly like that. I'm glad to be here ty.

It doesnt matter then if cpu-z shows 22x ratio and 4ghz + the same voltage, it does consume less power? I had a sandy bridge i5, it was a bit more straightforward on voltage and ratio parametering while in idle. I do know it is 1 generation younger, but...

Well, cpu-z should display dynamic voltages, if it's not then your's may not be dropping for whatever reason. RealTemp GT will display dynamic clock speeds much better than cpu-z, which for me usually just shows top available multiplier X bclk.

 

[LotharX]

Well, cpu-z should display dynamic voltages, if it's not then your's may not be dropping for whatever reason. RealTemp GT will display dynamic clock speeds much better than cpu-z, which for me usually just shows top available multiplier X bclk.

Real Temp GT shows lower multiplier at idle, so this part is solved, the speed step is really working, just the CPUID not showing it for some reasons, now i need real voltage readings now. Ty guys.

 

[Burpo]

Passmarks' most bang for the buck is the X5650

http://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+X5650+@+2.67GHz

Now $65-75 and scores higher than the Intel Xeon E5-1650 when OC'd..

 

[alphascout]

Without a doubt when you can beat a 3930k

 

[Burpo]

Nice! What are you using for cooling?

 

[alphascout]

Water 3x120 thick rad with low speed fans. Heat isn't an issue its the voltage required past 4900

 

[Burpo]

Heat IS the issue when over-volting so much. Heat/throttling prevents me from attaining those kind of clock speeds (reliably) on air. It's still very fast @ 200 BCLK for my use (rendering).

alphascout, you in Tampa? I'm just across the bay from you.

 

[alphascout]

Not too far away, I am originally from Orlando but I am finishing up my last 3 classes at USF !

1.64v 5134 Mhz 80c under load = not practical for anything but benching

 

[YBS1]

Not too far away, I am originally from Orlando but I am finishing up my last 3 classes at USF !

1.64v 5134 Mhz 80c under load = not practical for anything but benching

Exactly....water can keep these cool enough but at these voltages the chips are going to die/degrade regardless. The voltage hikes required once you're up in the ~5GHz range become exponential.

 

[Makaveli]

Exactly....water can keep these cool enough but at these voltages the chips are going to die/degrade regardless. The voltage hikes required once you're up in the ~5GHz range become exponential.

yup not worth it!

 

[Dogecoins]

I just got a x5650 for $70 and did the mod to my EVGA X58 3x SLI board.

I never OC'd the i7 920 I had before this chip and really a newb when it comes to OC.

Could anyone give me some pointers with regards to settings for a OC with a Evo 212 heat sink and G.Skill ram 12 GB 1333MHz 3x4GB.

Thanks

 

[Burpo]

I'm not familiar with that board, but here's an X58 overclocking guide from EVGA Forums..
http://forums.evga.com/EVGA-X58-Overclocking-Guide-m20028.aspx#20028

And a video I found on youtube for I7-920 (should be similar for testing).
https://www.youtube.com/watch?v=0hJsom0OOXQ

 

[BTRY B 529th FA BN]

I just got a x5650 for $70 and did the mod to my EVGA X58 3x SLI board.

I never OC'd the i7 920 I had before this chip and really a newb when it comes to OC.

Could anyone give me some pointers with regards to settings for a OC with a Evo 212 heat sink and G.Skill ram 12 GB 1333MHz 3x4GB.

Thanks

Start by taking HT off. Use the lowest memory divider. Turn off all CPU features except Turbo - this will enable the 22x on all 6 cores.

I didn't have to do much on my X5660. I only set the vcore manually. I seem to have a pretty good chip. I've reached 4GHz (23x171) @ 1.23v

 

[nitrobg]

Hello guys. How do you get past or fix the locked 20x uncore multiplier of the X56xx Xeons? I've been struggling a lot with this issue and can't find a real solution.
This ridiculously high multiplier forces me to go much higher on the CPU VTT than it's necessary just to reach some mediocre clocks.
I'm aware that the max safe CPU VTT voltage is 1.35V and I shouldn't get past that, so I'm following this rule of thumb. So this voltage gives me 193x22 for X5650 and I can't go higher without increasing it.
I'm almost certain that if I somehow manage to reduce the uncore multi, I'd be able to either go higher on BCLK or reduce the CPU VTT.
I've read that there are "hacked" bioses for some motherboards with added microcode for these specific CPUs which actually fully unlock these multipliers. Any idea how to achieve that and mod my own bios?

The motherboard is Foxconn FlamingBlade GTI with the latest BIOS.
The CPU is Xeon X5650 B1.

Any ideas or advices would be highly appreciated.

 

[Burpo]

193 X 22 is respectable for 24/7 overclock. That's about where I run mine (195). Heat's an issue above that.
4.2Ghz hex core is sweet tho!

 

[nitrobg]

193 X 22 is respectable for 24/7 overclock. That's about where I run mine (195). Heat's an issue above that.
4.2Ghz hex core is sweet tho!

I couldn't agree more, especially on the latest part.
My wild guess is that you are plagued by this uncore bug as well. Can you please confirm it with CPU Tweaker?
Most motherboards should reach this BCLK with ease without going much higher on the voltage, perhaps around 1.30V. This uncore bug literally forces them to bump the voltage by a few steps which would otherwise give them some room to reach at least 210MHz on the BCLK. This bug also puts unnecessary stress on the memory controller which is quite undesired.
This is why I'm looking for a solution or a patch to the microcode in the BIOS ROM.

 

[Brekyrself]

After reading the Haswell-E review, it looks like our xeon's can hold on for another year! This $75 L5639 @ 220blck and 12gb ram still has what it takes to do just about anything.

 

[BTRY B 529th FA BN]

You should get yourself one of these X5660's or X5650s

 

[dragantoe]

After reading the Haswell-E review, it looks like our xeon's can hold on for another year! This $75 L5639 @ 220blck and 12gb ram still has what it takes to do just about anything.

I don't think you can get 220 blck with this chip, I havent seen it at least...

 

[BTRY B 529th FA BN]

Plus you can't count the Turbo frequency when mentioning your overclock. It's like faking it. We want to know real 6 core OC numbers not one core OC turbo numbers.

 

[YBS1]

Plus you can't count the Turbo frequency when mentioning your overclock. It's like faking it. We want to know real 6 core OC numbers not one core OC turbo numbers.

FYI...Some boards are able to force the turbo multiplier while 6 cores are loaded. For example, with the 5670, it's default top multiplier is 22x, turbo is 24x, and under single (maybe dual) threaded loads 25x. I can force 6 cores @ 24x under all conditions.

 

[Brekyrself]

I don't think you can get 220 blck with this chip, I havent seen it at least...

220 blck has been no issue on the bloodrage.

Plus you can't count the Turbo frequency when mentioning your overclock. It's like faking it. We want to know real 6 core OC numbers not one core OC turbo numbers.

Bloodrage forces 18x multi on this chip when all 6 cores are loaded.

 

[looproll]

I don't think you can get 220 blck with this chip, I havent seen it at least...

Wrong http://valid.canardpc.com/gm30sc
my previous setup with l5639 on an asus p6td deluxe only llc enabled and it was stable 24/7