Mountain line USB won't bring up install

[koushiro]

Hi , I've been using a hackintosh for many years with snow leopard. I made the mountain lion USB and went to boot to it. The bootloader came up and asked me to choose the drive and I chose the USB but after that it just restarted the computer. No error codes or anything. Does that snd like a USB boot issue or a hardware issue?

 

My mb is a little old: asrock 4core 133 esata2

Intel core 2duo 3ghz nvidia GeForce 8600 gt

 

Any suggestions would be great.

 

Thanks, josh