I bought this computer with it not booting and would only boot with HDD removed otherwise would just turn off after turning it on and the Power led would blink really fast twice so I checked the voltages both on the PSU and where the HDD connects and they are fine and also will boot to basic without drive with only CMOS Battery error and Date/Time errors, I do not have a battery replacement right now so I can not replace it. Also opened it up the computer that is and cleaned all the connections with rubbing alcohol and qtip, but with the floppy drive it will turn on and then after the memory checks and then tries to read floppy immediately shuts off and the light on the floppy drive will flicker right when it does and go off?