1366 x58 Xeon Enthusiast overclocks club

ewb302 said:
I'm slightly addicted. Picked up an X5670 to see if it's any better than my X5660. Hoping for a lucky chip that will do 21 x 200 at relatively low voltage. More than anything, it's just a fun little project/experiment for me.
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the struggle is real, I'm going to see how much better I can do on mine past 4.2ghz. I just can't justify buying a new chip for 200-400mhz max

I think my voltages are pretty conservative, perhaps use auto to find max frequency then dial in voltages?
 
Napoleon said:
the struggle is real, I'm going to see how much better I can do on mine past 4.2ghz. I just can't justify buying a new chip for 200-400mhz max

I think my voltages are pretty conservative, perhaps use auto to find max frequency then dial in voltages?
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In my case, I have shown myself that overall performance is so much better with memory at DDR3-1600 speeds, so I'm fixated on using BCLK 200 to get this nice even memory clock that performs well.

On your UD3R board, does cpu-z report a lower voltage compared to your bios setting? Currently, my bios is set at 1.31875 fixed. Cpu-z reports 1.28. My brother has an Asus P6T and cpu-z reports much closer to the actual bios setting.
 
ewb302 said:
In my case, I have shown myself that overall performance is so much better with memory at DDR3-1600 speeds, so I'm fixated on using BCLK 200 to get this nice even memory clock that performs well.

On your UD3R board, does cpu-z report a lower voltage compared to your bios setting? Currently, my bios is set at 1.31875 fixed. Cpu-z reports 1.28. My brother has an Asus P6T and cpu-z reports much closer to the actual bios setting.
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Yes on the voltage. For the ram performance, have you compared DDR3-1600 using 200x8 to other non-round multipliers? For example, I'm at 10 x 175 mhz on my RAM; I wonder how it compares to 200 BCLK (which I don't think my chip will do like my i7 950 used to on this same board)

I keep my voltage settings in my sig so I don't forget if I lose my notebook/paper which I scribbled it down on. For a chip that I'd like to last 1-2 years, I'm thinking it's time to up the voltage
 
Napoleon said:
Yes on the voltage. For the ram performance, have you compared DDR3-1600 using 200x8 to other non-round multipliers? For example, I'm at 10 x 175 mhz on my RAM; I wonder how it compares to 200 BCLK (which I don't think my chip will do like my i7 950 used to on this same board)

I keep my voltage settings in my sig so I don't forget if I lose my notebook/paper which I scribbled it down on. For a chip that I'd like to last 1-2 years, I'm thinking it's time to up the voltage
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Well my RAM is limited to DDR3-1600, so I am kind of stuck at a memory multiplier of 8x in bios. I have tried BCLK 175 x 23 for a CPU clock of 4025. Memory multiplier is at 8x for a result of DDR3-1400. GFLOPS performance in IBT is reduced significantly. As soon as I set the RAM back to DDR3-1600 speed, my best performance is restored.
 
I have water blocks for my EVGA X58 E758 3 way SLi board Rev 1.2 and have never used them .. I have had my Xeon X5660 to 4.2Ghz without turbo and HT on and turbo to 4.4Ghz.. so how much more do you think the chipset blocks would push the cpu?

look at the turbo clocks here.. http://www.3dmark.com/fs/3959830
 
My new x5670 looks like a winner. Running 21 x 200 at 1.28 vcore (1.325 in bios) and QPI 1.295. Passed IBT on very high and currently running P95 to verify overnight stability. Temps are peaking in the mid 70's, which is the same as my x5660 was doing at 4.0 ghz.

Someone posted in this thread a long time ago that they thought the "B" steppings had a little better success than the "A" steppings. This x5670 is a "B" stepping, so maybe there is some truth to that comment. I tried two other x5660's with "A" steppings and they ran a bit warmer. I feel that they both could have hit 4.2, but would have taken slightly more voltage and a better cooler.

If this thing passes P95, I'm done. Going to be very happy running at 4.2 for the rest of this machine's life.
 
you might be able to get 4.4 with around 1.37 or 4.5 with 1.44 sounds like its clocks might be pretty close to my 5675.
 
Back to the x5660. The x5670 was acting funny, occasionally hanging the bios on post, hanging programs when they opened. Also, it wouldn't clock up to 2.93 even when stock optimized defaults were loaded in bios. Something was just not right and I can't stand less than perfect operation. My x5660 is very fast and smooth at 4.0ghz, and I have the power options set on to reduce clock and voltage at idle. My gut says to leave well enough alone. If I keep swapping cpus, I'll probably ending up bending a pin or dorking something up by accident.
 
ewb302 said:
Back to the x5660. The x5670 was acting funny, occasionally hanging the bios on post, hanging programs when they opened. Also, it wouldn't clock up to 2.93 even when stock optimized defaults were loaded in bios. Something was just not right and I can't stand less than perfect operation. My x5660 is very fast and smooth at 4.0ghz, and I have the power options set on to reduce clock and voltage at idle. My gut says to leave well enough alone. If I keep swapping cpus, I'll probably ending up bending a pin or dorking something up by accident.
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Damn thats a bummer might of got a bad CPU. I heard some stories of people getting some duds. Thankfully they are cheap.
 
ewb302 said:
Back to the x5660. The x5670 was acting funny, occasionally hanging the bios on post, hanging programs when they opened. Also, it wouldn't clock up to 2.93 even when stock optimized defaults were loaded in bios. Something was just not right and I can't stand less than perfect operation. My x5660 is very fast and smooth at 4.0ghz, and I have the power options set on to reduce clock and voltage at idle. My gut says to leave well enough alone. If I keep swapping cpus, I'll probably ending up bending a pin or dorking something up by accident.
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Did you try remounting your heatsink a few times see if that helped ? i Ask because with my asus x58 board sometimes if i mount my water block to tight i get boot loops, ram missing, usb not working if i loosen it up a tad bit then all is well.
 
bal3wolf said:
Did you try remounting your heatsink a few times see if that helped ? i Ask because with my asus x58 board sometimes if i mount my water block to tight i get boot loops, ram missing, usb not working if i loosen it up a tad bit then all is well.
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Interesting. No I did not try messing with the heatsink. I am going to use my x5660 as is for a few weeks. If I get the itch to experiment again, I might try the x5670 again. I never had any other issues with my original i7 930 or the two x5660's that I have tried. Only that one cpu.
 
hello guys i have an x58 comp with i7 930 and x58 asus which cpu u recommend better for OC and overall performance x5675(which i can buy close to me) or buy an w3670 from ebay which cost little less.?
 
fuarkvi said:
hello guys i have an x58 comp with i7 930 and x58 asus which cpu u recommend better for OC and overall performance x5675(which i can buy close to me) or buy an w3670 from ebay which cost little less.?
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I would get a x5675 or a x5660. The W3670 is a quad core CPU not a hexcore like the x5675.
W3680 and w3690 are hexcores and are multiplier unlocked
 
Bill1024 said:
I would get a x5675 or a x5660. The W3670 is a quad core CPU not a hexcore like the x5675.
W3680 and w3690 are hexcores and are multiplier unlocked
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Not sure why you'd do a 5660 over a 5670, high BCLK is not a guarantee on those chips so try for one with the highest multiplier you can get . Agreed on the 6-core
 
The W3670 is a hex core. They can be decent overclockers. Stable 4.2ghz is fairly common, with 4.6ghz not out of the question.
 
from what I remember reading the W3680 although is a 6core had a lower IPC then the X56** series.
 
Yeah I am sorry, I was wrong, the w3670 is a hexcore, but it is not multiplier unlocked like the 80 and 90. Sorry.
 
if you want a better chance to get a higher clock its easier to hit 4.2-4.4ghz with a X5670 because of the multiplier available. Otherwise you will be using the Turbo Multi which isnt reliable.
 
The x5660 at 32$ on ebay has a lot of value, and Asus boards give you 23 multiplier which I have been using for years with no issues.
My EVGA boards have it as 21x with the 23 with turbo and those have been running years too no issues.
23 x 200 is 4.6ghz, if you hit 4.6 you're doing real good.
 
You can't force the turbo multiplier for 24/7 usage somehow right?

If so, the bump from 20x to 21x would raise my OC from 3.4 to 3.6 with zero voltage headaches etc....
 
Can someone recommend me a mb that would be good for a e5645 that uses ecc ram? I have two e5645s, six 16gb and six 8gb sticks or ram.
 
Bill1024 said:
The x5660 at 32$ on ebay has a lot of value, and Asus boards give you 23 multiplier which I have been using for years with no issues.
My EVGA boards have it as 21x with the 23 with turbo and those have been running years too no issues.
23 x 200 is 4.6ghz, if you hit 4.6 you're doing real good.
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Hmm not sure about that. My Asus Sabertooth only gives me 22 and 24 multi. No 23.
 
Brackle said:
Hmm not sure about that. My Asus Sabertooth only gives me 22 and 24 multi. No 23.
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Thats is strange, my Rampage3 and P6T V2 deluxe give me 23 with the x5660. With the x5660 My EVGA Classified3 and both my EVGA FTW3 give me 21 + 2 =23
You have the x5660 or x5650? the 50 will give you 22
50 is 22, 60 is 23, 70 is 24, 75 is 25.....
 
Bill1024 said:
Thats is strange, my Rampage3 and P6T V2 deluxe give me 23 with the x5660. With the x5660 My EVGA Classified3 and both my EVGA FTW3 give me 21 + 2 =23
You have the x5660 or x5650? the 50 will give you 22
50 is 22, 60 is 23, 70 is 24, 75 is 25.....
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I think that is because the Turbo multi is 23 for the X5660? I have a X5670.

The reason I picked up the Sabertooth is because it is the only known Asus motherboard to not limit the power to the CPU. I read that the other Asus motherboards will downclock the CPU if there is too much power. Can't remember where I read that. Its been awhile.
 
Brackle said:
I think that is because the Turbo multi is 23 for the X5660? I have a X5670.

The reason I picked up the Sabertooth is because it is the only known Asus motherboard to not limit the power to the CPU. I read that the other Asus motherboards will downclock the CPU if there is too much power. Can't remember where I read that. Its been awhile.
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I believe the p6t deluxe v1 and 2 will lower under heavy load. My rampage or EVGA boards do not.
The P6T D V2 running 100% load BOINC some project it does not lower it, when running others it will.
People flash the P6T with the WS bios to get around that.
It is not a huge downclock seems like 23 x to 22.5 x it is strange it does it at all.
 
Bill1024 said:
I believe the p6t deluxe v1 and 2 will lower under heavy load. My rampage or EVGA boards do not.
The P6T D V2 running 100% load BOINC some project it does not lower it, when running others it will.
People flash the P6T with the WS bios to get around that.
It is not a huge downclock seems like 23 x to 22.5 x it is strange it does it at all.
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Yea my P6t V2 and Rampage III extreme gene did lower under heavy load. I just didnt want to crossflash and got a smoking deal on this Sabertooth.
 
Thats strange, my Rampage III gene did not lower down under load, Maybe one of ours was a defective board.
The .5 multiplier the P6T did down clock never bothered me in the least
Either way, they still work good for what they are. They run BOINC WCG just fine
 
Hello, I bought used x5670 few days ago, it runs pretty well @4,22 GHz 21x201, 1.35 V (set in BIOS, actual voltage is lower 1.336), 2x8 DDR multiplier (3x4 corsair vengeance 1600) . Temps on cores are maxing @ 83° C on hottest core, cpu temp reading from MOBO is max 73°C. Uncore @ 3600-ish. P6X58D premium.

1. One core is maxing way hotter than others (83, while others max 71-74) while another is always way lower (65-67), is this normal? I have huge air cooler, core temps were even on my old setup (i7 950 @ 4GHz) Is there a way to determine how long life can I expect from this CPU? Could this be symptom that the xeon could die soon?

2. Is there a chance and any reason to overclock my DDR3 1600 to 2000 MHz (+/- few MHz) - changing the multiplier to 2x10 and tweaking voltage, will there be any real life benefit from DDR overclock? I am affraid to do it, no need to burn my RAM, but the chance of getting better performance....

3. is it really safe to increase CPU voltage more than 1.35 V? I would like to try 4,44 Ghz, first time I tried with slightly increased voltage I got BSOD when booting. According to my current temps I am affraid trying to go faster is not an option...

Thank you for any advice, I had i7 950 and I knew what was this peace of silicon capable of, but I have no clue about Xeons. Also sorry if my english is bad, I am from Czech Republic.
 
1. That is normal

2. You can try to get 2000mhz but some motherboards just dont like it. Basically you will have to do tweaking to see what is your max stable memory speed, some motherboards can do it some cant. IMO i would not invest in new ram unless you plan to keep this X58 for awhile. I would rather save the money towards a new PC. Even though these are still a great steal/buy even a Ryzen 1600/1700/1800 is faster once overclocked to 4ghz.

3. I think intel recommends not to go past 1.375v. Right now im at 1.4v to hit 4.4ghz, but I have an H115i to keep it cool. So if you do want to overclock more I would say get better cooling first if you want to go past 4.2ghz for now.

Good luck Demor!
 
Demortormer said:
Hello, I bought used x5670 few days ago, it runs pretty well @4,22 GHz 21x201, 1.35 V (set in BIOS, actual voltage is lower 1.336), 2x8 DDR multiplier (3x4 corsair vengeance 1600) . Temps on cores are maxing @ 83° C on hottest core, cpu temp reading from MOBO is max 73°C. Uncore @ 3600-ish. P6X58D premium.

1. One core is maxing way hotter than others (83, while others max 71-74) while another is always way lower (65-67), is this normal? I have huge air cooler, core temps were even on my old setup (i7 950 @ 4GHz) Is there a way to determine how long life can I expect from this CPU? Could this be symptom that the xeon could die soon?

2. Is there a chance and any reason to overclock my DDR3 1600 to 2000 MHz (+/- few MHz) - changing the multiplier to 2x10 and tweaking voltage, will there be any real life benefit from DDR overclock? I am affraid to do it, no need to burn my RAM, but the chance of getting better performance....

3. is it really safe to increase CPU voltage more than 1.35 V? I would like to try 4,44 Ghz, first time I tried with slightly increased voltage I got BSOD when booting. According to my current temps I am affraid trying to go faster is not an option...

Thank you for any advice, I had i7 950 and I knew what was this peace of silicon capable of, but I have no clue about Xeons. Also sorry if my english is bad, I am from Czech Republic.
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1. I have tried a few different cpu's and they all had varying core temps. It seems like there is always one core that is much cooler or much warmer than the others. So yours seems normal.

2. You can try overclocking memory. I prefer to run my memory at DDR3-1600, because it is rated at this speed and stable. Once you begin to overclock memory, it is one more thing that you must consider for stability. I prefer to know my memory is stable and focus on the cpu only.

3. Intel rates the cpu up to 1.35v. Many people exceed this voltage, but it will likely degrade the lifespan of the cpu. I personally find the temperatures increase quickly as I start to get near 1.35v. If you can get 4.0-4.2ghz you are doing well and will have a nice fast machine. You can probably achieve this with 1.35v or less.
 
The ebay seller was nice enough to swap the x5670 and I got another. This one is smooth, does not hang bios or programs. It is stable at 21 x 200, 1.312v vcore (1.35 in bios). Temps are very manageable, hitting low 70's max in IBT and prime95.

I'm very satisfied with 4.2ghz for a daily driver. I've learned a lot about the bios settings testing a few chips. No two chips are the same, that's for sure. I know most people are retiring from this configuration, but I'm going to enjoy it for a while if it proves to remain stable.
 
ewb302 said:
The ebay seller was nice enough to swap the x5670 and I got another. This one is smooth, does not hang bios or programs. It is stable at 21 x 200, 1.312v vcore (1.35 in bios). Temps are very manageable, hitting low 70's max in IBT and prime95.

I'm very satisfied with 4.2ghz for a daily driver. I've learned a lot about the bios settings testing a few chips. No two chips are the same, that's for sure. I know most people are retiring from this configuration, but I'm going to enjoy it for a while if it proves to remain stable.
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That motherboard can be a pain sometimes to overclock on, but once you get it dialed up, it's pretty nice. I just recently retired mine late last year when I got back from Japan. I ended up getting a 3930K + Sabertooth X79 mobo for less than 200 used in Akiba and then 64GB of Corsair 2400MHz DDR3 for 350 brand new.
 
Any one noticed wierd temps with these xeons one day my x5675 using a alphacool st30 360 rad with a mcp655-b and a old rasa block to cool it seems like some days it will hit 80c other days no hotter then 60c with room staying around 20-22c usualy right at 21c.
 
bal3wolf said:
Any one noticed wierd temps with these xeons one day my x5675 using a alphacool st30 360 rad with a mcp655-b and a old rasa block to cool it seems like some days it will hit 80c other days no hotter then 60c with room staying around 20-22c usualy right at 21c.
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Mine hits the same max temps consistently, no real variation. Have you monitored your vcore readings during full load? Any chance your mobo is occasionally overvolting the cpu?
 
Well I think the sensor is going bad in the Xeon because today cores were full load at 40c but the cpu temp was 80c seems like a reboot fixes it, could be a software bug also.
 
Picked up a complete system from Craigslist today with a dead PSU today for 80 bucks. I think it's a great deal. System was dusty but otherwise in excellent condition. I threw a spare PSU I had in there and now I'm typing from it. :) Thinking about throwing a xeon hex in there just for the hell of it but it's for my brother and he doesn't really need it.

Currently upgrading it to windows 10 and then will power off and begin my cable management.

Specs...

i7 960
12gb DDR3
Asus Rampage III Extreme
Fractal Define R4
9500gt
Wireless N pcie
Win7 ultimate
Office 2010 Professional
 
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That's a really good deal. The xeons are so cheap on ebay, it's definitely worth grabbing one to give it a try. Make sure you flash to the most current bios before swapping the cpu though.
 
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