we are using ~60 HP t610 Plus Thin Clients in a computer pool that connect via HP ThinPro to a Citrix farm. In ordner to manage the clients we use the Software HP Device Manger (4.6). When we restart all Thin Clients via HPDM remotely, approximately 5-10% of these hang on boot with the message "No boot device" found. Even after a soft reset (ctrl+alt+delete) the same message appears. The only way to boot the clients into the OS is to shut them down completely and power them on again.
Each client has a 16GB SATA drive with HP ThinPro installed on it. For me it seems that this device is sometimes not found on boot. Bios Version in use on all clients is 1.16 (K30). Anyone else got this problem and can it be fixed by a bios upgrade?