acer +vcc_core and No CPU heat

[kokono]

Re: acer +vcc_core and No CPU heat

I still suspect bios issue. Have you tried this bios
https://www.laboneinside.com/acer-as...ev-d-bios-bin/

This bios is tested ok.

i checked this link , yes is similar this bios :
https://www.badcaps.net/forum/showthread.php?t=65552

[kokono]

Re: acer +vcc_core and No CPU heat

i also measured RSMRST# is high.
Everything is available,
another suggestion ?

[piernov]

Re: acer +vcc_core and No CPU heat

Reset signal for CPU is PLTRST#.

[kokono]

Re: acer +vcc_core and No CPU heat

Reset signal for CPU is PLTRST#.

is null ,Also PCI_PLTRST# is null

[piernov]

Re: acer +vcc_core and No CPU heat

Check SYS_PWROK and SUS_STAT# (on TP74, use boardview to locate it).

[kokono]

Re: acer +vcc_core and No CPU heat

Check SYS_PWROK and SUS_STAT# (on TP74, use boardview to locate it).

SYS_PWROK 3.3v
SUS_STAT# 0v

[piernov]

Re: acer +vcc_core and No CPU heat

PCH doesn't turn on for some reason. PCH clock Y3 could be the cause, and probably other things but I don't know what (maybe some secondary PCH power rails).

[kokono]

Re: acer +vcc_core and No CPU heat

PCH doesn't turn on for some reason. PCH clock Y3 could be the cause, and probably other things but I don't know what (maybe some secondary PCH power rails).

i changed Y3 , but is similar
whats your opinion about SIO ? it perfect working ? i can change it if need

[mcplslg123]

Re: acer +vcc_core and No CPU heat

Check CLK_PCI_EC at pin13 of sio

[kokono]

Re: acer +vcc_core and No CPU heat

Check CLK_PCI_EC at pin13 of sio

is null

[mcplslg123]

Re: acer +vcc_core and No CPU heat

Unfortunately, without clk_pci_ec you cant have plt_rst. So you need to find out why its missing.