Question Xeon W-2123 won't turbo boost, stays max @3.7ghz

[soewhaty]

As topic suggests ... anyone ever had that and how to force it to go to TurboBoost 2.0 clock speeds of 3.9ghz? So far no matter what I try I cannot get a stress pattern to make it go beyond 3.7ghz. I tried IntelBurnTest and Prime95 ... nothing.

I can also see in CPU-Z that it is under wattage. Intel ARK suggests 120 watts whereas CPU-Z says 114 watts.

https://ark.intel.com/content/www/u...on-w-2123-processor-8-25m-cache-3-60-ghz.html

I've checked temps and it's all good, nothing too high. Cooling is some stock fan with whatever thermal paste HP or Chinese put there. Haven't touched it. It's a work workstation PC.

 

[soewhaty]

https://ibb.co/LhQ9xf8
Here's a screen of CPU-Z ... It's a workstations from HP Z4 G4, mobo is 81C5, BIOS version is shown on the screenshot.

For whatever reason the forum says something went wrong when I try to insert the image with the normal insert-image-tool.

 

[mdd1963]

3.9 GHz should only be seen in short, single threaded workloads...(You certainly will not see the highest clock speeds in well multithreaded loads)

Looking at HWMonitor to observe all-core/max/min clock speeds, run CPU-Z/Bench/Bench CPU which will both run single and multithreaded benchmarks.

 

[soewhaty]

I am not sure I agree. I am monitoring the clock speeds of all my cores with Rainmeter and a plug-in that measures each core individually based off of HWiNfo. Literally at no load whatsoever do I ever get 3.9.

At home I have an OC'ed i7-6800k and it goes without a prob to 4.2ghz which is the max I set it at.

TurboBoost 2.0 for the xeon w2123 says 3.9ghz so I would very much expect at least once to see 3.9ghz yet I can never get up so high. I just tried a stress test with Prime95 and IntelBurnTest and set they at 1 thread per time (I wish I could set them at 1 core) yet this again did not go up to 3.9ghz.

 

[soewhaty]

So the admins or mods decided to delete my last post where I said it was a not such a good cpu that I have ... how that is profanity I don't know ... In that same post I also explained that I tested isolating loads per core and thread and it still never went beyond 3.7ghz ... so 3.9 will remain a dream on this CPU ... unless anyone would come up with input but I certainly disagree with @mdd1963 cos I can promise you that turbo boost speed is, can and will be reached on max loads. From then on it's a matter of sustaining this frequency ... so if your cooling is poor the cpu will throttle and if cooling is good it won't and it will just sustain those frequencies.