I have a 5160 XT 64-256 motherboard.
Last time I tried to swap the CPU with NEC 12 Mhz one and it did not work. So I tried the original one and it still did not work. Motherboard appear "dead".
Procedures done so far:
- minimum diagnostics setup does not work.
- the CPU is OK, I tried it on another motherboard.
- I checked the 40 pins of the CPU socket for connection with the other side of the motherboard - all connected. A bad socket or a damaged one could explain everything.
- POWER is OK. I powered another motherboard with the same power supply. Voltages are OK.
- I changed capacitors: C58, C59, C56, C54, C68. Middle pin is +, outside is -. Longer leg of the capacitor is + (there is a + also on it)
- I re-socketed the entire 9 x 4 = 36 memory chips
- I exchanged the memory chips from BANK0 and BANK1
What else can be done ?
I have a hard time identifying the memory chips.
Last time I tried to swap the CPU with NEC 12 Mhz one and it did not work. So I tried the original one and it still did not work. Motherboard appear "dead".
Procedures done so far:
- minimum diagnostics setup does not work.
- the CPU is OK, I tried it on another motherboard.
- I checked the 40 pins of the CPU socket for connection with the other side of the motherboard - all connected. A bad socket or a damaged one could explain everything.
- POWER is OK. I powered another motherboard with the same power supply. Voltages are OK.
- I changed capacitors: C58, C59, C56, C54, C68. Middle pin is +, outside is -. Longer leg of the capacitor is + (there is a + also on it)
- I re-socketed the entire 9 x 4 = 36 memory chips
- I exchanged the memory chips from BANK0 and BANK1
What else can be done ?
I have a hard time identifying the memory chips.
Last edited: