...If I unlpug the ATX 12v connector going to the processor and press the power button, the system appears to somewhat boot up. In other words...
- CPU fan never spins up
- SYSFAN connectors also do nothing on the board
- Keyboard LEDs light up for a second (What voltage do they use?)
- Power supply fan kicks on
- Can eject/close optical drive
But if I reconnect the ATX 12v connector.. nothing happens at all. The power supply fan twitches for a split second like it's trying to start up, but ultimately gets no where. Keep in mind that the standby LED on the board remains lit regardless of the 12v connector's presence.
As far as capacitors go, I can't really find any bad caps from just looking at them, but I'm well aware that caps can go bad without showing it too. I replaced all the 16v KZG caps next to the CPU and I'm awaiting a replacement for the taller 6.3v KZG cap under the CPU's heatsink.
Something else to keep in mind is that the power supply I got with this eMachine ACTUALLY isn't one of those horrible Bestecs; It's a HiPro 300w PSU (Are these better?), but I also noticed that the fan in it is struggling quite a bit (Noisy, etc.). Could it have just overheated the CPU or the caps? I can't find any burn marks anywhere on the board. I've also removed the ram, disconnected all drives, but left the cpu in place. Still nothing.
What could the 6.3v KZG cap possibly be used for? I've seen reports on the forums that these fail rather often under extreme heat. A PSU with a poor fan, a clogged up heatsink, and add together the fact that the computer was in a tight, enclosed space.. I wonder? What else could I try?
Also, I'm a bit new to the forums.. I apologize if I posted this in the wrong area.
- CPU fan never spins up
- SYSFAN connectors also do nothing on the board
- Keyboard LEDs light up for a second (What voltage do they use?)
- Power supply fan kicks on
- Can eject/close optical drive
But if I reconnect the ATX 12v connector.. nothing happens at all. The power supply fan twitches for a split second like it's trying to start up, but ultimately gets no where. Keep in mind that the standby LED on the board remains lit regardless of the 12v connector's presence.
As far as capacitors go, I can't really find any bad caps from just looking at them, but I'm well aware that caps can go bad without showing it too. I replaced all the 16v KZG caps next to the CPU and I'm awaiting a replacement for the taller 6.3v KZG cap under the CPU's heatsink.
Something else to keep in mind is that the power supply I got with this eMachine ACTUALLY isn't one of those horrible Bestecs; It's a HiPro 300w PSU (Are these better?), but I also noticed that the fan in it is struggling quite a bit (Noisy, etc.). Could it have just overheated the CPU or the caps? I can't find any burn marks anywhere on the board. I've also removed the ram, disconnected all drives, but left the cpu in place. Still nothing.
What could the 6.3v KZG cap possibly be used for? I've seen reports on the forums that these fail rather often under extreme heat. A PSU with a poor fan, a clogged up heatsink, and add together the fact that the computer was in a tight, enclosed space.. I wonder? What else could I try?
Also, I'm a bit new to the forums.. I apologize if I posted this in the wrong area.
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