Dell Vegas/Turis SKL/KBL 15341-1/91N85 missing VCCGT

[Techtiger]

i got this Mob need help Veteran's 15341-1/91N85 no liquid damage or corrosion , bord power up but no Video PL4801 VCCGT missing ,no beep or blink code's
Flash BIOS with SMDFlea one but not the EC

(https://www.badcaps.net/forum/showth...hlight=15341-1)
POST#3 and one from
(https://www.laboneinside.com/tag/153...1n85-bios-bin/)

now the Mob shut down after 2 mins fan on full speed blink code Amber 2 white 7 power lab 0.50 drops to 0.30 Num Lock comes after 1mins DRAMRST 1.2V ALL SYS PWERGD 3.3V PLTRST ok

the screen & LVDS is working on another Mob
thanks

[mcplslg123]

Re: Dell Vegas/Turis SKL/KBL 15341-1/91N85 missing VCCGT

So you mean to say mb is posting after bios flash but shuts down within a minute or so??

[Techtiger]

Re: Dell Vegas/Turis SKL/KBL 15341-1/91N85 missing VCCGT

So you mean to say mb is posting after bios flash but shuts down within a minute or so??

No the mb is not posting at all it shuts down after 2mins in the external keyboard Num lock lights up after 1mins no display or bios post in the screen

[mcplslg123]

Re: Dell Vegas/Turis SKL/KBL 15341-1/91N85 missing VCCGT

Hmm, not faced yet on this mobo. I'll suggest to change the 16mb bios chip and reflash again bios with clean me as well reprogram EC. The most puzzling part is numlock glowing after 1min but still no post.

[Techtiger]

Re: Dell Vegas/Turis SKL/KBL 15341-1/91N85 missing VCCGT

Hmm, not faced yet on this mobo. I'll suggest to change the 16mb bios chip and reflash again bios with clean me as well reprogram EC. The most puzzling part is numlock glowing after 1min but still no post.

Bios was reflash with a new chip 16MB & the EC as well and the strang thing is PL5301 is Active ALWS PWR_1D0V even the Mob is shut Down

[mcplslg123]

Re: Dell Vegas/Turis SKL/KBL 15341-1/91N85 missing VCCGT

Most likely PWR_1D0V_EN is not removed after shutdown. This Enable comes from 3V_5V_POK. So trace it and try replacing TPS51225. I think 1.8V also remains there after turning off.

ps: Check all this on battery mode only. I think with adapter connected all ALW voltage should come up on this mb.

[gts]

Re: Dell Vegas/Turis SKL/KBL 15341-1/91N85 missing VCCGT

Hi i have dell 15341-1/91N85 , Display comes and then power off after 2 min .
i have programmed new bios .the same problem exists.can any one help ?

[gts]

Re: Dell Vegas/Turis SKL/KBL 15341-1/91N85 missing VCCGT

2-orange flash 7-white flash then goes off