Not really busy, so I decided to check this old board witch was sitting there since 2 years.
Initial issue (2 years ago): Kernel panic crash and restart so the board have been tossed away.
Now (2 years later) I plug in the magsafe, the fan spins, each time after exactly 10 seconds it stops briefly and restart. When the fan restarts spinning it doesn't cycle anymore it stays on all the way (is it now crashing before even booting?)
Green light ok pp3v42 = 3.42V stable
Resistance to ground on pp3v42_g3h: 93K
PPBUS_G3H 12.57V stable
Charger and battery Sensing resistor measure good between ISL6259 pin 17-18 (3ohms) and 27-28 (20ohms)
S5 rails stable.
PM_SLP_S4_L goes to 0V briefly after 10seconds (at the same time when the fan cycle) so all S3 S4 S0 rails and ALL_SYS_PWRGD cycle also once after 10sec and they come back.
I have PPVCORE_S0_MCP 0.9V and it goes to 0v when it hangs and come back to 0.9V when it restart. Same thing with PPVCORE_S0_CPU.
Red light on USB mouse appear only four times: when I press power on button, when fan starts, again when fan stops 1 sec and finally when fans restarts.
No missing ram beep when ram stick removed.
No idea what else I can check, thanks.
Initial issue (2 years ago): Kernel panic crash and restart so the board have been tossed away.
Now (2 years later) I plug in the magsafe, the fan spins, each time after exactly 10 seconds it stops briefly and restart. When the fan restarts spinning it doesn't cycle anymore it stays on all the way (is it now crashing before even booting?)
Green light ok pp3v42 = 3.42V stable
Resistance to ground on pp3v42_g3h: 93K
PPBUS_G3H 12.57V stable
Charger and battery Sensing resistor measure good between ISL6259 pin 17-18 (3ohms) and 27-28 (20ohms)
S5 rails stable.
PM_SLP_S4_L goes to 0V briefly after 10seconds (at the same time when the fan cycle) so all S3 S4 S0 rails and ALL_SYS_PWRGD cycle also once after 10sec and they come back.
I have PPVCORE_S0_MCP 0.9V and it goes to 0v when it hangs and come back to 0.9V when it restart. Same thing with PPVCORE_S0_CPU.
Red light on USB mouse appear only four times: when I press power on button, when fan starts, again when fan stops 1 sec and finally when fans restarts.
No missing ram beep when ram stick removed.
No idea what else I can check, thanks.