New kit purchased and put together. When power on switch is pushed, PSU fan, CPU fan, case fan, and HDD power on for 3 seconds. After that power shutsdown for 3 seconds and then powers up, over and over.
GA-H67M-D2 Rev. 1.0
Sparkle ATX 500W PSU (PSPS-500)
Thermaltake V3 Case (VL8000)
Intel Core i5-2300 CPU (LGA1155)
Seagate Barracuda 1TB Sata HDD
Sony DVDRW Sata
Checked all the front panel connections and verified the polarity is correct.
Jumpered the ATX connector green wire to black and the PSU fan remained on.
I'm stumped, thanks in advance.