Lenovo Shorted +3VALW no power

[kalilinux25]

Hi I Have a ACLU1/ACLU2 UMA NM-A272 MB plugging the PSU no shorted to amps , Ive check all coils , found out that the PJ303 Pin 1 is shorted I cant find where the shorting is coming from, Hope someone can guide me

Im very thankful if someone can guide me to this one, God Bless aLL.

if I pump 3v in the Shorted... the PCH is getting hot

[Anethra]

Re: Lenovo Shorted +3VALW no power

if I pump 3v in the Shorted... the PCH is getting hot

i think you find to problem. you can try take off to pch from motherboard and check again coil shorted or not. i think your pch is broken

[kalilinux25]

Re: Lenovo Shorted +3VALW no power

i think you find to problem. you can try take off to pch from motherboard and check again coil shorted or not. i think your pch is broken

I tried removing it the shorted is gone 300 ohms resistance

[kalilinux25]

Re: Lenovo Shorted +3VALW no power

is it ok to buy a OEM chip but same model?

[Anethra]

Re: Lenovo Shorted +3VALW no power

yes it must be the same model. at least i know it

[mcplslg123]

Re: Lenovo Shorted +3VALW no power

yes it must be the same model. at least i know it

Not necessarily. This mb has SOC. You need to find the list of supported processor by microcode in bios dump. The following is the list of CPU ID's supported on this m/b
01.306C3
02.306C2
03.40651
04.40650
05.40661
06.40660

You can search these cpu id to get the processor sku on cpu-world.com.

If you have any questions, you can ask here.

[mcplslg123]

Re: Lenovo Shorted +3VALW no power

Hi I Have a ACLU1/ACLU2 UMA NM-A272 MB plugging the PSU no shorted to amps , Ive check all coils , found out that the PJ303 Pin 1 is shorted I cant find where the shorting is coming from, Hope someone can guide me

Im very thankful if someone can guide me to this one, God Bless aLL.

if I pump 3v in the Shorted... the PCH is getting hot

NEVER do it again. On SOC architecture mb dont pump anything above 1V as that will surely kill the soc.

[Anethra]

Re: Lenovo Shorted +3VALW no power

Not necessarily. This mb has SOC. You need to find the list of supported processor by microcode in bios dump. The following is the list of CPU ID's supported on this m/b
01.306C3
02.306C2
03.40651
04.40650
05.40661
06.40660

You can search these cpu id to get the processor sku on cpu-world.com.

If you have any questions, you can ask here.

hmmm. i didn't know that. i learned something new, ty for information

[kalilinux25]

Re: Lenovo Shorted +3VALW no power

Not necessarily. This mb has SOC. You need to find the list of supported processor by microcode in bios dump. The following is the list of CPU ID's supported on this m/b
01.306C3
02.306C2
03.40651
04.40650
05.40661
06.40660

You can search these cpu id to get the processor sku on cpu-world.com.

If you have any questions, you can ask here.

good day sir , I cant realy I understand the process its very new to me , I'm very sorry hope you can guide me?

[mcplslg123]

Re: Lenovo Shorted +3VALW no power

If the moderators permit, i can make a new thread guiding members on which SOC will run on a particular mb.

[SMDFlea]

Re: Lenovo Shorted +3VALW no power

If the moderators permit, i can make a new thread guiding members on which SOC will run on a particular mb.

Of course you can, and it can be stickied too if it provides useful info.We need more members writing guides and tutorials. .Thank you

[mcplslg123]

Re: Lenovo Shorted +3VALW no power

Of course you can, and it can be stickied too if it provides useful info.We need more members writing guides and tutorials. .Thank you

Thanks for your belief in me. Will make a thread very soon

[Sametbey]

Re: Lenovo Shorted +3VALW no power

Pj303 jumper 3.3 V output. You can detect the heated part by giving 1v. It can damage other circuits on 3.3 v PCH. 3.3 v also goes to other EC , audio and ethernet sections. needs to be checked.