This could be many things;<br />Chip<br />Old chip<br />scratched track on the main board <br />Lazer<br />but most commanly its the chip not been installed right ie: a wire missing<br />If your looking for the best hex for the PS1 check out my site (its called one hex) it 8 wires though.
yep sounds like it might be wired wrong or an old chip u should use the onechip or u will have to boot import backups with a pal game and do a switch at the psx sign.
Yes its the tiny ps one,<br />the chip is a standard chip from techtrix.<br />wired with 4 wires<br /><a href="http://www.techtrix.co.uk/index.asp?page=product_type.asp" target="_blank">http://www.techtrix.co.uk/index.asp?page=product_type.asp</a>