Z170 Pro Gaming missing Vcore after cleaning

[brusli009]

I bought it used and was filled with dust, but was working fine, took the heatsinks off and gave it a quick clean with ipa and a soft brush.
The next day it starts but the vcore is missing, also the qled dont light up, from what ive seen on the boardview (posted on the forum) i think im missing the vcore enable, but not sure. Also if the 8pin cpu is removed when the board is started,it dosent do anything, feels like the board dosent know that its connected.
Maybe someone has some ideeas or something.

[DominanceINC]

Hello brusli009,

It is just an opinion. If you used plastic hair brush, you may cooked something FET or IC containing FET what could go into short by electrostatic shock.

[DynaxSC]

Did you take out the cpu for cleaning? Could be that some of the dust mixed with IPA migrated and contaminated the cpu socket pins, so there is no good contact between cpu pads and socket pins. Try to clean the socket with IPA and compressed air. A small soft painting brush can also do the job, no IPA is necessary then, do it on dry socket. But do it with brush only if you are very good in mechanical works, it is very easy to bend the pins. Move the brush only is the direction in which the pins are directed, never against.

Examine the socket if there is nothing on it, that could cover the pins and disturb contact. Even very small particles, difficult to see, can disturb proper contact.

Clean also the cpu pads with IPA, sometimes even a finger touch of the pads is enough to disturb good contact.

It is also possible that the cleaning ripped off some small smd components, look for missing smd's.

Also left over still wet IPA under chipset or Super I/O might prevent mobo from starting. Dry the board with compressed air or some heating from the backside, so IPA, or better to say the rest of water inside the IPA can evaporate. No IPA is 100% non-conducting alcohol, there is always some water inside, and it can be conductive if not completely pure water.

[DominanceINC]

The fact is that: the isopropyl alcohol does not lead the electric power. So, if you use natural hair brush or combined with alcohol, or you use plastic brush with alcohol, or cotton textile with alcohol, most likely, you do not make electrostatic discharge on sensitive parts.

The other fact is that: the electrostatic discharge kills sensitive parts. To avoid from this, there are wrist straps grounded. But, this does not prevent from the charge of a charged tool what is mostly sealed from the human with plastic grip.

So, not the cleaning is the problem. The how to is that sometime. I you broke nothing physically, there is no too much other possibilities.

[DynaxSC]

In theory you're right, but my experience tells something else.