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HP Recommended
HP Z640 Workstation
Microsoft Windows 10 (64-bit)

Normally the system is very responsive: UserBenchmark rates it PC Performing above expectations (60th percentile).

Unfortunately, bout every 4th to 6th time my Z640 returns from sleep It is running painfully slow.

By painfully slow I mean response to mouse clicks or mouse window drags is usually 5 or 6 seconds!

Keystroke and <CR> response is similarly slow!!!

To recover I either put it to sleep & wake it again, or reboot either of these has always worked.

 

System

HP Z640 Workstation 

Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz

Samsung 870 2TB

MotherboardHewlett-Packard 212A
Memory128 GB @ 2.1 GHz
DisplayNvidia GTX 1660 w/2   monitors: 3440 x 1440 - 32 Bit colors, 1366 x 768 - 32 Bit colors
OS

Windows 10 21H2 build 19044.1466 Windows Feature Experience Pack 120.2212.3920.0

 

 

2 REPLIES 2
HP Recommended

An update: I left Task Manager's performance window open. When the Z640 came up very slow the CPU CLOCK SPEED  was reported as 1.28 GHz! After a sleep cycle it displayed as 2.5 GHz.

Is there a way to increase the clock speed up to normal without rebooting or sleep cycling?

HP Recommended

Try the 5 steps in the two screen captures below...

 

First.jpgNext.jpg

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