Posted 07 May 2012 - 11:23 PM
I have a ultra mini optiplex 745 that just recently started giving me trouble. I noticed a couple days of days ago when the pc booted there was a message at start up that said "system battery voltage is low" and to press f1 to continue, so i did and everything seem to work fine until today. The computer monitor screen just suddenly goes black and states "entering power save mode" but the desktop is still on and I notice not long after the monitor goes off then i hear a loud fan noise, louder than I have ever heard it run. So, I hard shut the pc down and when running the diagnostics I didnt get a error and the hard drive diagnostic passed.
I am thinking this maybe a power supply issue but i am not sure. I have a optiplex 755 ultra mini that is working, so i took out the hard drive from the defective optiplex 745 and install it into the optuplex 755, but after doing this i notice the OS (which is windows 7) will not come up. it starts to but then just goes to a " Windows Recovery" screen. When I try running windows recovery that doesnt help. When I look in the bios it shows it detecting the hard drive, so i dont understand why it doesnt work. Has anyone else had this issue? Can I not simply take a hdd from an optiuplex 745 and install into a 755?