The Diagnostics-Performance log is simply telling you the amount of time that it took to resume from standby here. The "warnings" are not warnings or errors at all.
System Manufacturer/Model Number HP Z400 workstation OS Windows Server 2008 R2 CPU Intel Xeon 3550 @3.06GHz Motherboard HP Memory 16GB DDR3 Graphics Card Nvidia Quadro 600 Sound Card Realtek ALC262 Monitor(s) Displays 2x Hanns-G HG281 Screen Resolution 1920x1200
Keyboard Microsoft Natural Ergonomic Keyboard 7000 Mouse Microsoft Intellimouse Explorer 3.0 PSU HP Case HP Hard Drives 1x Samsung 160GB SSD
2x WD 1TB (RAID1)
While Checking in Event viewer lof of Diagonaists Perf issue problems?