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- z640 sometimes very very slow after return from sleep

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07-01-2022 12:41 PM
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 |
Motherboard | Hewlett-Packard 212A |
Memory | 128 GB @ 2.1 GHz |
Display | Nvidia 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 |
07-22-2022 02:32 PM
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?