ASUS ROG G751JY randomly shuts down

[ktmmotocross]

ASUS ROG G751JY randomly shuts down. i cannot trace what is wrong. no voltage change or shortage. only i noticed that chipset ic is very hot. i put small heatsink on it but after few minutes it is hot for touch

[Spider1211]

Re: ASUS ROG G751JY randomly shuts down

Try cleaning bios ME. On older models random shutdowns was usually caused by a bad podlizer cap.

[ktmmotocross]

Re: ASUS ROG G751JY randomly shuts down

what is podlizer cap?

[Spider1211]

Re: ASUS ROG G751JY randomly shuts down

typo, sorry. I meant Proadlizer Capacitor (NEC TOKIN) https://parts4laptops.eu/en/other-el...citor-new.html. But I doubt your motherboard has this.

[mcplslg123]

Re: ASUS ROG G751JY randomly shuts down

I've seen many ROGS and most of them has issues with PCH. However, that may/may not be the case here.

[Smoxx]

Re: ASUS ROG G751JY randomly shuts down

ROGs are well known for being shipped with voltages set extremely high in BIOS factory defaults and undervolting VCORE may solve auto shutdown issues most of the time. Not sure if this is the case here but it is one of the fixes you could try.

[ktmmotocross]

Re: ASUS ROG G751JY randomly shuts down

ROGs are well known for being shipped with voltages set extremely high in BIOS factory defaults and undervolting VCORE may solve auto shutdown issues most of the time. Not sure if this is the case here but it is one of the fixes you could try.

but full load tests will not show it as overheating?

[Smoxx]

Re: ASUS ROG G751JY randomly shuts down

Are you able to run and complete full load tests without shutdown? If so, then overvolting may not be the issue.

[Spider1211]

Re: ASUS ROG G751JY randomly shuts down

Did you by any chance check if the cooling fins are clogged?

[ktmmotocross]

Re: ASUS ROG G751JY randomly shuts down

Did you by any chance check if the cooling fins are clogged?

cooling is not a problem. i run it by full load on gpu and cpu and it goes without problem. shut downs comess looks like randomly
sometimes i have problem with running two hdd. so i think maybe chipset have cracked balls under it

i have acer that have this problems , but it was the proadlizer cap

[paulo66]

Re: ASUS ROG G751JY randomly shuts down

i have acer that have this problems , but it was the proadlizer cap

Probably a long shot but the larger capacitor could be acting up like the Nec Tokin cap. Check for AC ripple across it.

[ktmmotocross]

Re: ASUS ROG G751JY randomly shuts down

Probably a long shot but the larger capacitor could be acting up like the Nec Tokin cap. Check for AC ripple across it.

ripple is 55-77mV
on gpu is ripple 25-55mV

[paulo66]

Re: ASUS ROG G751JY randomly shuts down

AC mV? Isn´t that noisy for Vcore?

[ktmmotocross]

Re: ASUS ROG G751JY randomly shuts down

today the first time after shut down i cannot start it. VIN was low. but after minute it start again. so i just jump first two mosfets and after that, no shutdown.