Have a fragging XBOX (first one), IIRC, it's a 1.0 or 1.1, it's the motherboard that uses the power supply with a single row of pins.
It does the usual FRAG behaviour, tries to start 2 times (fan spins and LEDs light up) momentarily, then starts up on the third try (fan spins and main light flashing red and green), but no video.
The unit has never had a modchip nor TSOP, but it was softmodded years ago, and was working last time I powered it up 5 or 6 weeks ago. I have a second hard drive properly prepared for it, and the behaviour was the same when I swapped it in to test.
PSU is a Foxlink FTPS-0002 Rev B. I've attached a diagram I found somewhere that shows the pins and expected voltages, and I'm seeing the following...
On standby, 3.26V on the brown pin, 0V on all the others.
On power up, I'm getting 3.26V on all the expected 3.3V pins, EXCEPT the white pin, where I only get 2.55V. Also, I get 4.98V on the 5V pins, but only 11.49V on the 12V pin.
Would the low voltages on the 12V pin, and the white pin cause the unit to FRAG?
One other thing to note is that I did notice some weeks ago that the XBOX took a few tries to get going, it may have been fragging then, but started up ok after 2 or 3 tries, but it's just not starting now. Would this, along with the voltages point to the PSU?
It does the usual FRAG behaviour, tries to start 2 times (fan spins and LEDs light up) momentarily, then starts up on the third try (fan spins and main light flashing red and green), but no video.
The unit has never had a modchip nor TSOP, but it was softmodded years ago, and was working last time I powered it up 5 or 6 weeks ago. I have a second hard drive properly prepared for it, and the behaviour was the same when I swapped it in to test.
PSU is a Foxlink FTPS-0002 Rev B. I've attached a diagram I found somewhere that shows the pins and expected voltages, and I'm seeing the following...
On standby, 3.26V on the brown pin, 0V on all the others.
On power up, I'm getting 3.26V on all the expected 3.3V pins, EXCEPT the white pin, where I only get 2.55V. Also, I get 4.98V on the 5V pins, but only 11.49V on the 12V pin.
Would the low voltages on the 12V pin, and the white pin cause the unit to FRAG?
One other thing to note is that I did notice some weeks ago that the XBOX took a few tries to get going, it may have been fragging then, but started up ok after 2 or 3 tries, but it's just not starting now. Would this, along with the voltages point to the PSU?
Comment