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[Official] - X58 Xeon Club - - Page 878

Poll Results: How many years have you owned your X58 - Tylersburg platofrm?

 
  • 10% (49)
    More than 1 year
  • 5% (24)
    More than 2 years
  • 8% (41)
    More than 3 years
  • 11% (53)
    More than 4 years
  • 23% (113)
    More than 5 years
  • 41% (200)
    More than 6 years
480 Total Votes  
post #8771 of 12865
Hey guys, didn't we agree a few years ago with these Westmere's that UCLK can be set to 1.5 x ram freq? The image below shows 2x? My BIOS keeps telling me to set it at least TWICE the speed of RAM, and I keep doing so. But I think someone said the system can be more stable with it set to 1.5 x ram, instead of 2x. Is that correct?

I'm no longer interested in Overclocking this CPU, just sick and tired of not having a 100% stable system and my USB 3.0 works so damn much better if I don't overclock at all. Just setting BCLK to 160 (From 133) so I can get my RAM to rated speeds causes my USB 3.0 to drop from 255 MB/s down to 200 MB/s, and the writes drop from 130 MB/s to 120 MB/s. All because of the BCLK overclock. At 170 or higher the USB 3.0 chip completely vanishes, like its not even there, so obviously it is very sensitive to the overclock. I must have my USB working proper as it is a daily used, hourly used feature.

So my BCLK is now set at 160, and ram is now set at 1600 MHz @ 1.5v, 9-9-9-24 (which is its rating). This lets me use my USB 3.0 ports and the X5650 isn't running at its base freq any longer. Still plenty fast enough for me.

Is that all I need to do for 1600 ram and super stable system?

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The }SkOrPn--'
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post #8772 of 12865
Quote:
Originally Posted by }SkOrPn--' View Post

Hey guys, didn't we agree a few years ago with these Westmere's that UCLK can be set to 1.5 x ram freq? The image below shows 2x? My BIOS keeps telling me to set it at least TWICE the speed of RAM, and I keep doing so. But I think someone said the system can be more stable with it set to 1.5 x ram, instead of 2x. Is that correct?

I'm no longer interested in Overclocking this CPU, just sick and tired of not having a 100% stable system and my USB 3.0 works so damn much better if I don't overclock at all. Just setting BCLK to 160 (From 133) so I can get my RAM to rated speeds causes my USB 3.0 to drop from 255 MB/s down to 200 MB/s, and the writes drop from 130 MB/s to 120 MB/s. All because of the BCLK overclock. At 170 or higher the USB 3.0 chip completely vanishes, like its not even there, so obviously it is very sensitive to the overclock. I must have my USB working proper as it is a daily used, hourly used feature.

So my BCLK is now set at 160, and ram is now set at 1600 MHz @ 1.5v, 9-9-9-24 (which is its rating). This lets me use my USB 3.0 ports and the X5650 isn't running at its base freq any longer. Still plenty fast enough for me.

Is that all I need to do for 1600 ram and super stable system?


So the bios was never update to reflect the change but only westmere allow 1.5x uncore but I found its faster, more stable, and needs less voltage at 2x, if you have your ram at 1600mhz, uncore at 3200, then set your timing to 9-9-9-24 with 1T command rate, instead of 2T, I try your blck at 200blck so 4ghz. This machine will fly, its the same settings I run smile.gif what is your voltages
post #8773 of 12865
I believe faster uncore frequencies resulted in better performance but couldn't exceed 4000 MHz. This is one of the reasons it was difficult to overclock RAM past 2000 MHz, because uncore had to be at least double RAM speed and uncore couldn't exceed 4000 MHz. It was possible to have RAM at 1600 MHz and uncore above 3200 MHz, it was just a matter of stability.
post #8774 of 12865
I've always been under the impression 2X on the 4 core i7s and such and 1.8X for the Xeons. Kanu or someone went deep into this about a year ago, a few hundred pages back. I think it was finding the balance of performance and stability and 1.8X ram speed for these Xeons is the sweet spot so that's the info I put in all my overclocking videos for these Xeons. Hopefully I haven't been peddling misinfo.
post #8775 of 12865
I don't run my Westmere at 2x because it requires more voltage than I want to run on the qpi and vtt at the BCLK I run for 4.4Ghz. I think mine may be at 1.5x but I haven't looked in forever
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post #8776 of 12865
Quote:
Originally Posted by DunePilot View Post

I've always been under the impression 2X on the 4 core i7s and such and 1.8X for the Xeons. Kanu or someone went deep into this about a year ago, a few hundred pages back. I think it was finding the balance of performance and stability and 1.8X ram speed for these Xeons is the sweet spot so that's the info I put in all my overclocking videos for these Xeons. Hopefully I haven't been peddling misinfo.

Nehalem/Bloomfield needs 2x uncore vs. effective memory frequency (for triple channel), while Westmere/Gulftown has a wider connection between the IMC and L3 (the now defunct Lostcircuts had an article that went into some detail about this) and can get by with running the uncore at 1.5x.

What's optimal may be different, and may vary from part to part and board to board. Most of my non-Gigabyte X58 boards did not like the uncore running faster than the QPI on either Nehalem or Westmere and none of my Westmere parts have ever liked extremely high uncore values.

With my current X5670's (a later C batch) 24/7 clocks, I run 21x200 on the core, 18x(36x) on the QPI, 16x on the uncore, and 20x on the memory. So 4.2GHz core, 3.2GHz uncore, and DDR3-2000 9-11-11-27-T1 triple channel. That's with 1.25 vcore, 1.235v qpi/vtt, 1.3v cpu pll, and manual stock other voltages. I can go down down to 15x on uncore and get away with a bit less qpi/pll, but 16x performs better and doesn't need much more voltage. I can also go higher on uncore, but the voltage scaling past 3.2GHz is horrible...3.4GHz uncore needs 1.335v qpi/vtt, and 3.6uncore needs 1.4v+ to even boot. 14x and below just result in a hard lock with triple channel DDR3-2000.
Quote:
Originally Posted by kpforce1 View Post

I don't run my Westmere at 2x because it requires more voltage than I want to run on the qpi and vtt at the BCLK I run for 4.4Ghz. I think mine may be at 1.5x but I haven't looked in forever

I generally just run my uncore as fast as is practical, which is usually 3.6-4GHz on Bloomfield and 3-3.4GHz on Gulftown, for 24/7 clocks, and use memory clocked no higher than 2x on the former and 1.5x on the later.
Edited by Blameless - 7/27/16 at 6:26am
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post #8777 of 12865
Quote:
Originally Posted by Blameless View Post

Nehalem/Bloomfield needs 2x uncore vs. effective memory frequency (for triple channel), while Westmere/Gulftown has a wider connection between the IMC and L3 (the now defunct Lostcircuts had an article that went into some detail about this) and can get by with running the uncore at 1.5x.

What's optimal may be different, and may vary from part to part and board to board. Most of my non-Gigabyte X58 boards did not like the uncore running faster than the QPI on either Nehalem or Westmere and none of my Westmere parts have ever liked extremely high uncore values.

With my current X5670's (a later C batch) 24/7 clocks, I run 21x200 on the core, 18x(36x) on the QPI, 16x on the uncore, and 20x on the memory. So 4.2GHz core, 3.2GHz uncore, and DDR3-2000 9-11-11-27-T1 triple channel. That's with 1.25 vcore, 1.235v qpi/vtt, 1.3v cpu pll, and manual stock other voltages. I can go down down to 15x on uncore and get away with a bit less qpi/pll, but 16x performs better and doesn't need much more voltage. I can also go higher on uncore, but the voltage scaling past 3.2GHz is horrible...3.4GHz uncore needs 1.335v qpi/vtt, and 3.6uncore needs 1.4v+ to even boot. 14x and below just result in a hard lock with triple channel DDR3-2000.
I generally just run my uncore as fast as is practical, which is usually 3.6-4GHz on Bloomfield and 3-3.4GHz on Gulftown, for 24/7 clocks, and use memory clocked no higher than 2x on the former and 1.5x on the later.

You know I am running close to the same settings, but higher core clock due to unlocked multi. so 4.509 GHz core @ 1.355V's. 3517 uncore, 1.327V's, 9-9-9-24 2000 is mhz memory 1.57V's (this i go back and forth from 1600 8-8-8-24 1.5128V's). and QPI 3014.

But here I am starting to test the theory with the PLL voltage. I just booted up at 1.51V's. before I had always left it at 1.8. After a quick read read about the Phase Locked Loop creating electrical noise on the systems circuitry, I am gonna do some testing on this.

one thing I really wish i had was an "offset core voltage". When Intel does it's job, and I am just fiddling with the system, I dance around 2.0, 3.5, and 4.18. Unless I load it all the way up, then it will climb to the max 4.502 setting.

Is there a software based system, that is reliable to use??

I would love to see the voltage come down to 1.12 ( which is stable for 3.5 GHz) and climb accordingly with speed increases.
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post #8778 of 12865
Werd up peeps. I've got an old core i7 920 that I want to replace with a Xeon. I'm kind of unsure if I should go with the w3680, or the X5690. Which one do you guys think is a better overclocker? The 5690 has a higher clock speed out of the box, but the 3680 has a higher passmark score. It's also only $125 on fleabay, so there's that. Any guidance you guys have for me would be much appreciated. wink.gif
post #8779 of 12865
Quote:
Originally Posted by DRKreiger View Post

Is there a software based system, that is reliable to use??

No, and I wouldn't particularly worry about it. Low loads and reduced clock speeds make the difference (in power consumption and wear on the part) due to voltage pretty small anyway.
Quote:
Originally Posted by unothegreat View Post

I'm kind of unsure if I should go with the w3680, or the X5690. Which one do you guys think is a better overclocker? The 5690 has a higher clock speed out of the box, but the 3680 has a higher passmark score. It's also only $125 on fleabay, so there's that. Any guidance you guys have for me would be much appreciated. wink.gif

No way of telling really. Quite a bit of variance between samples of different batches and even with a batch. My gut feeling is that the X5690 is probably the safer bet, as it's likely to be newer. Don't put stock in passmark scores.

Even $125 is a fair bit to spend on an LGA-1366 CPU at this time...plenty of good hex cores around for sub-$100. Only if you really need those high multipliers should you be looking at the top SKUs.
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post #8780 of 12865
Quote:
Originally Posted by Blameless View Post

Nehalem/Bloomfield needs 2x uncore vs. effective memory frequency (for triple channel), while Westmere/Gulftown has a wider connection between the IMC and L3 (the now defunct Lostcircuts had an article that went into some detail about this) and can get by with running the uncore at 1.5x.

What's optimal may be different, and may vary from part to part and board to board. Most of my non-Gigabyte X58 boards did not like the uncore running faster than the QPI on either Nehalem or Westmere and none of my Westmere parts have ever liked extremely high uncore values.

With my current X5670's (a later C batch) 24/7 clocks, I run 21x200 on the core, 18x(36x) on the QPI, 16x on the uncore, and 20x on the memory. So 4.2GHz core, 3.2GHz uncore, and DDR3-2000 9-11-11-27-T1 triple channel. That's with 1.25 vcore, 1.235v qpi/vtt, 1.3v cpu pll, and manual stock other voltages. I can go down down to 15x on uncore and get away with a bit less qpi/pll, but 16x performs better and doesn't need much more voltage. I can also go higher on uncore, but the voltage scaling past 3.2GHz is horrible...3.4GHz uncore needs 1.335v qpi/vtt, and 3.6uncore needs 1.4v+ to even boot. 14x and below just result in a hard lock with triple channel DDR3-2000.
I generally just run my uncore as fast as is practical, which is usually 3.6-4GHz on Bloomfield and 3-3.4GHz on Gulftown, for 24/7 clocks, and use memory clocked no higher than 2x on the former and 1.5x on the later.

Great info. thumb.gif
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