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10-05-2018 03:25 PM
@OmTatSat wrote:
@MtothaJ wrote:
PS. for 'proper' overclocking you need to unlock long turbo duration, otherwise you are still limited to 130W TDP i.e. that 43X all core boost is good for short bursts, but on any longer duration tasks you will downclock considerably - try Prime95 with small FFT max heat settings and watch what happens with your clocks.
Hello, please help me to figureout how to unlock long turbo duration?
Maybe thereis some z420\z620 overcklock FAQ?
Fairly off topic but there are plenty of posts here on overclocking via XTU to the 130W TDP limit, but if you want to go over, you will have to bypass the BIOS locks on the MSRs which no one has been able to do. I suspect you may be able to do it by writing a custom UEFI tool from what I've seen done on Macs, but the BIOS may reset it. Even if you can bypass the TDP limits, you run a risk as we have no idea what the VRMs are capable of. Easiest thing to do if you really want higher performance is buying an aftermarket X79 motherboard, around $300-400.
10-05-2018 11:24 PM - edited 10-06-2018 12:21 AM
@ShadowX360 wrote:Fairly off topic but there are plenty of posts here on overclocking via XTU to the 130W TDP limit, but if you want to go over, you will have to bypass the BIOS locks on the MSRs which no one has been able to do. I suspect you may be able to do it by writing a custom UEFI tool from what I've seen done on Macs, but the BIOS may reset it. Even if you can bypass the TDP limits, you run a risk as we have no idea what the VRMs are capable of. Easiest thing to do if you really want higher performance is buying an aftermarket X79 motherboard, around $300-400.
Thank you for reply, "Can you please post link to overcklock z420 themes? I can't find any((
Also in first post "In March, when preparing z620_2 (Xeon E5-1680 v2 8C@4.3GHz/ z420 liquid cooling / 64GB / Quadro P2000 / HP Z Turbo Drive 256GB + Intel 730)" i was think that he bypass 130W TDP limit(( because 16 threads at 4.3GHz consume a lot more than 130W.
Also post please where i can read about "writing a custom UEFI tool from what I've seen done on Macs"
About "buying an aftermarket X79 motherboard, around $300-400" X79 boards have not support ecc reg ram, wich have very good price 32Gb 1600MHz = 93$ and usual desktop ddr3 have almost 2x price(( and z420 i can buy for only 110$
10-06-2018 08:55 AM - edited 10-06-2018 09:58 AM
It would be great if you could take the lead on this. I have never seen a thread in this forum that details the answers to your question but I'm sure you will get some answers. Overclocking on these workstations can be done, to a degree.
1. Start your own fresh thread in this forum.... don't use this one. Your question deserves being in its own place (it has little to do with this thread).
2. Look up and learn about the Intel Extreme Tuning Utility HERE.
https://downloadcenter.intel.com/download/24075/Intel-Extreme-Tuning-Utility-Intel-XTU-
3. Look up and learn about which of the HP approved ZX20 processors are "unlocked" enough to use on your HP workstation with this Intel utility. Some are and some are not. There is no Intel resource that states which, so Google will help. If you don't have one of those partially unlocked processors you'll need to buy one.
4. Learn about the version 1 versus version 2 motherboards for these workstations and which of those two main types you have..... find the boot block date method to tell the difference. That will control what you can do in step 3 above. In your dedicated thread let us know what version you have by providing its boot block date.
5. Learn about the fastest type of memory you can use in your workstation based on 3 and 4 above. You'll need to optimize that if you really want the best performance. Certain processors can run faster memory, and even how you load the memory can make a difference. Fast/overclocked processor + slow memory = slow.
10-06-2018 11:48 AM - edited 10-06-2018 11:52 AM
@SDH wrote:It would be great if you could take the lead on this. I have never seen a thread in this forum that details the answers to your question but I'm sure you will get some answers. Overclocking on these workstations can be done, to a degree.
1. Start your own fresh thread in this forum.... don't use this one. Your question deserves being in its own place (it has little to do with this thread).
2. Look up and learn about the Intel Extreme Tuning Utility HERE.
https://downloadcenter.intel.com/download/24075/Intel-Extreme-Tuning-Utility-Intel-XTU-
3. Look up and learn about which of the HP approved ZX20 processors are "unlocked" enough to use on your HP workstation with this Intel utility. Some are and some are not. There is no Intel resource that states which, so Google will help. If you don't have one of those partially unlocked processors you'll need to buy one.
4. Learn about the version 1 versus version 2 motherboards for these workstations and which of those two main types you have..... find the boot block date method to tell the difference. That will control what you can do in step 3 above. In your dedicated thread let us know what version you have by providing its boot block date.
5. Learn about the fastest type of memory you can use in your workstation based on 3 and 4 above. You'll need to optimize that if you really want the best performance. Certain processors can run faster memory, and even how you load the memory can make a difference. Fast/overclocked processor + slow memory = slow.
1. Ok, here it is https://h30434.www3.hp.com/t5/Business-PCs-Workstations-and-Point-of-Sale-Systems/z420-z620-overcklo...
2. already download
3. i know 1650 v2 and 1680 v2 is overcklockable in Zx20 v2 boards
4. read about this too, i will buy v2 motherboard
5. 1866 - fastest, but cost lot more then 1600, are you sure that performance will be dramatically different 1600 vs 1866??
Thank you for your advices, i apreciate this.
06-21-2019 10:03 AM
Hello,
I have a Z420 with the same Xeon E5-1680 v2 as you have.
It run at stock : 3.00 Ghz
I"m interested to try your method of overclocking as I have a variable result of 2D mark between 531 and 621.
I've not changed the hardware. AMD Firepro W7000.
Bios have been upgraded to 3.94 Rev.A and many driver changes for the videocard.
The files described one year ago ( Files: https://files.fm/u/ut43xqzk ) are no longer available.
Could you please tell me how to gain access to them ?
Thanks
jml2155
06-22-2019 10:01 AM
jm,l2155,
The E5-1650 v2, 1660 v2, and 1680 v2 may be overclocked by using Intel Extreme Tuning Utility ("XTU"). The v3 versions of those also have unlocked multipliers.
In the case of the v2, it seems appropriate to use a contemporaneous version as the microcode modification matches. For the E5-1680 v2 , which is overclocked to 4.3GHz on all 8-cores, the XTU version used is 5.20.14. The settings for : Multiplier is 43x and Additional Turbo Voltage is 187.500, Forum friend Brian1965 has run a Xeon E5-1680 v2 at to 4.7GHz with a custom external cooler of his design also using 5.20.14.
The current XTU version is 6.5.1.321, so finding 5.20.14 will have to be a third party site. Later versions will still work: I discovered that the office z420 (E5- 1650 v2 / z420 liquid cooling) was somehow updated to 6.3.0.54 but still had quite good benchmark results at 4.3GHz on all 6-cores.
XTU is something that requires patient experimentation. It's essential to have very good cooling and when settling on a stable configuration, check the CPU voltage. Then run a stress test such Prime 95 and watch the temperatures. The E5-1680 v2 is rated to 85C and that is a conservative rating, but pushing a CPU at high voltages- over 1.5V can apparently degrade the memory controller over time. Xeons are quite tough though. As the z420 is not often used for 3D modeling,
Let us know how you progress.
BambiBoomZ
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