I have 2 HD combo ps2 slim 70000 series,lately I exchange the HDD then boot the 1st one but it can't load GOW2 hd loader after Matrix logo, it freeze to black screen.Then I replace the ps2 slim of the 2nd to the 1st hd combo power supply it can't load GOW2 hd loader again so I again replace the ps2 slim and tried to boot the 2nd ps2 also but It also can't load HD loader, here is the problem both ps2 hd combo can't load GOW2 HD loader after the MATRIX logo. Is it the problem of 1st ps2 power supply or of HD loader or of hardware of ide ps2 slim, please help me