HP workstation Z840 very slow - windows 10 pro 64

[QQoooooor]

I installed an HP Z840 workstation[2UA5471H95] last week. It works very, very, very slowly. It hangs once I start any task. For example, If I open a window or click a button, its impact time may be 3-5 seconds or even more than 10 seconds.

The hardware usage rate is very low. I can't find the reason in these days, so I turned to experts.

It is the information for this workstation as below.

# Hardware

+ Dual Xeon X5-2690 v3

+ DDR4 2133, 64GB [8GB*8]

+ [Disk C] Intel 900p, 280GB [PCI-E*4, for OS]

[Disk D] Intel DC S3500, 1.6TB

[Disk E] HDD, SATA, 1TB

+ NVIDIA Quadro K2200, 4GB

+ Samsung 3440*1440, monitor

# Software

+ Windows 10 Pro for workstation, X64 [1909, 18363.476]

+ Office 2019 pro plus, X64

+ WinRar, X64

+ Samsung, easy setting box [to split screen]

+ Adlock [to block the ads, from the store of windows 10]

+ Other, a couple of apps to chat

# Other

+ All of the bios, firmware, drivers are the latest by the windows, intel’ or HP’ tools.

+ The windows 10 is newly installed.

+ The check with ‘sfc/scannow’ is ok.

+ Checking the hardware is ok.

+ Usually, the usage rates of CPU, SSDs & HDD, network card, are 0-3%, Dram is used 5-10 GB.

+ The time required to boot or shut down is normal.

++ However, I found the intel 900P’s, Intel DC S3500’s and HDD’s driver version is ’10.0.18362.1’, driver date is ‘June 21, 2006’.

Thanks in advance

QQoooooor

[HHH003]

Your Computer setup shouldn't be slow at all... Dual E5-2690 V3's should be quite fast, even with the newest patches for Spectre, Meltdown, MDS and other vulnerabilities. My experience with these patches are that 3D graphic performance isn't slowed down much nor CPU, memory or storage performance... but if you run a Passmark  2D test, even the best Video Cards will produce a low score.  

I have a similar computer build to yours... Dual E5-2667 V3's, 64 GB of memory with a HP Z Turbo Drive G2 512 GB.  

But there may be a compatibility issue with the Intel P900.  I'm not familiar with the Intel P900 unit, so I may be wrong about this, but from what I did see online, it may not be totally compatible with the Z840.  Let's say the Z840 BIOS was designed to work with the HP Z Turbo Drive G2... not necessary the Optane stuff.  I believe the Optane line was meant for the newer Xeon scalable CPU's and is offered on the newer HP workstations.  

Your video card will "bottle neck" your Dual E5-2690 V3's.  Basically, your CPU will be slowed because your video card can't keep up.  Now this issue can be troubling because of the high cost of good quality video cards these days.   I recently upgraded to a NVidia RTX 2070 Super over the Quadro M4000 my computer came with.  I saw a definite  improvement in CPU performance for sure.  The computer is much more responsive now.  

I defenately think your Intel P900 is the problem with slow performance.