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12-20-2018 04:17 AM - edited 12-20-2018 04:18 AM
I just installed Windows 10 on a z820 and I'm having USB issues. I came across this (https://support.hp.com/us-en/document/c03291465) which explains the issue of the cursor lagging due to interference from a thumb drive below the mouse (Logitech M705) receiver in a usb 3 port on the front.
What's weirder is that the USB 2.0 ports on the front and back don't work at all and don't provide power to the wired keyboard or receiver. They also don't cause a notification sounds like the 3's. Any ideas?
12-20-2018 06:51 AM
which build of windows 10 are you using and do you have the latest Ms updates installed?
the v1803 release is quite solid, the v1809 less so unless you apply the latest Fixes
the 17xx releases are considered obselete for most users, so unless you have a specific need of this release(s) stay with the 1803/1809 installs
usually the quickest fix is a clean reinstall of the OS, with the z800 bios set to defaults
(never ever enable the compute option!!!) the only bios changes might be to disable the network Boot rom and the onboard LSI SAS/SATA controllers boot rom (make sure for the LSI you disable the boot rom and not the actual controller)
12-20-2018 10:35 AM
i would simply redownload the latest release of win 10 do a clean reinstall, and apply all ms updates
confirm proper mouse operation then add only one or two programs at a time and retest between each program install, you might want to create a restore point manually each time
the only thing you need to know about compute option for the pcie slots is not to use it unless you want a non working system
enabling it will disable video from any video card inserted in a slot with compute enabled
search the forum if you wish a detalied description that i have previously posted on several times
12-26-2018 07:51 PM
I have a very similar issue with a brand new Z2 mini G4. Wireless logitech works fine but Razer Chroma has terrible lagging. What makes me very angry is that we are talking about a freeking mouse data going through a USB port - something that has been working with no issues for like 350 years now. What is a solution - installing a fresh Windows or maybe even better - going back to a PS2 or RS232 mouse.