LED 1 2 and 3 on, chime good, LED 4 seems dim, black screen. Using ext. Cinema via TB2 and boot the cinema seems to get bright but nothing. Tried SMC, PRAM resets, and removed coin battery, still no change. no evidence of liquid damage or physical damage on the board. PS visual looks good to. Once booted to chime and LED 1 2 3 on w/ 4 dim (pic attached) the fan starts spinning higher then reboots. this repeats. Using a simple IR to scan for anything abnormal, shows cold board or nothing higher than 95F. This is on the bottom of the board by the little IR flat cable.
Is it possible to be a PS issue even though 3 of LED lights on? BIOS chip and boot ROM is damaged? Logic board? Recommendations to test and narrow down? Don't like using the "swap-tronics" method of troubleshooting plus don't have a spare PS or board available.
Original issue was customer kept filling up drive via emails dumping server and capacity errors so after removing files or running a clean up then reboot it never came back on. New 3.5" tried, new SSD (orig. 32GB SSD), new memory modules (these done by a different repair shop) but only resulted in $700 of charges for those "test parts".
I am a year free member and enjoy all things Rossmann! I am now a monthly subscriber ready to take the next step.
I hope I posted this correctly..
Mike
Is it possible to be a PS issue even though 3 of LED lights on? BIOS chip and boot ROM is damaged? Logic board? Recommendations to test and narrow down? Don't like using the "swap-tronics" method of troubleshooting plus don't have a spare PS or board available.
Original issue was customer kept filling up drive via emails dumping server and capacity errors so after removing files or running a clean up then reboot it never came back on. New 3.5" tried, new SSD (orig. 32GB SSD), new memory modules (these done by a different repair shop) but only resulted in $700 of charges for those "test parts".
I am a year free member and enjoy all things Rossmann! I am now a monthly subscriber ready to take the next step.
I hope I posted this correctly..
Mike