Hi guys
I recently made the stupid mistake of switching my PSU to 115V using the switch on the outside, which led to sparks and smoke in the PSU, not to mention me crapping my pants. When this happened I immediately turned the power point off.
I then proceeded to replace the now-dead PSU with a newer 350W one. After installing the PSU and all parts and cables, the system booted successfully, but I was met with an error at the first boot screen saying "NTLDR is missing". I read up on the internet that this was a problem with the hard drive boot order so checked the BIOS, but everything looked ok. Just to be sure, I reset the BIOS to the factory default settings, saved, and exited the BIOS. I also put the Windows XP CD in the DVD drive hoping to get to the repair screen, but the next time that I went to start the computer it would not boot. The monitor was plugged in but remained in standby, and although the power, floppy and HDD access indicator lights were working and the CPU fan was spinning, I did not hear any beeping noises (as I did the first time I powered the system on, before entering the BIOS). After a short time the HDD access indicator light goes out, but there continues to be no signal on the monitor.
I tried removing RAM, video cards, HDDs and the floppy, but the computer still doesn't boot. I also tried the original PSU again but this is clearly damaged because the system doesn't turn on.
What the hell is going on? Did damaging my first PSU damage the motherboard directly but only AFTER the computer successfully booted? Did what happened with the first PSU damage the memory which in turn damaged the motherboard after the first successful boot?
The system is a Pentium 4 2.66GHz with 512MB DDR333 RAM, an 80GB HDD, and a GeForce 2 MX400 64MB AGP video card.
Please help if you can!
Thanks
Jason
I recently made the stupid mistake of switching my PSU to 115V using the switch on the outside, which led to sparks and smoke in the PSU, not to mention me crapping my pants. When this happened I immediately turned the power point off.
I then proceeded to replace the now-dead PSU with a newer 350W one. After installing the PSU and all parts and cables, the system booted successfully, but I was met with an error at the first boot screen saying "NTLDR is missing". I read up on the internet that this was a problem with the hard drive boot order so checked the BIOS, but everything looked ok. Just to be sure, I reset the BIOS to the factory default settings, saved, and exited the BIOS. I also put the Windows XP CD in the DVD drive hoping to get to the repair screen, but the next time that I went to start the computer it would not boot. The monitor was plugged in but remained in standby, and although the power, floppy and HDD access indicator lights were working and the CPU fan was spinning, I did not hear any beeping noises (as I did the first time I powered the system on, before entering the BIOS). After a short time the HDD access indicator light goes out, but there continues to be no signal on the monitor.
I tried removing RAM, video cards, HDDs and the floppy, but the computer still doesn't boot. I also tried the original PSU again but this is clearly damaged because the system doesn't turn on.
What the hell is going on? Did damaging my first PSU damage the motherboard directly but only AFTER the computer successfully booted? Did what happened with the first PSU damage the memory which in turn damaged the motherboard after the first successful boot?
The system is a Pentium 4 2.66GHz with 512MB DDR333 RAM, an 80GB HDD, and a GeForce 2 MX400 64MB AGP video card.
Please help if you can!
Thanks
Jason