• ACER ASPIRE VX5-591G LA-E361P - Brak głównej grafiki

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#1 ACER ASPIRE VX5-591G LA-E361P - Brak głównej grafiki


by naprawimyto 7 February 2024, 06:06
Proszę o pomoc w rozwiązaniu usterki :
Komputer się uruchamia, po chwili wiatraki wchodzą na najwyższy poziom, temperatura w HW Monitor pokazuje normalne niskie temperatury , 36-40st.
Brak napięcia VCC_GT.

Wstępne pomiary pokazały brak napięcia na PL807 oraz PL806 oporność 5,2Ω

Jeśli potrzeba mogę podać resztę pomiarów jednak wszystkie inne napięcia są obecne. Komputer pomimo pracy wiatraków na najwyższym poziomie oraz pracy tylko na podstawowej karcie graficznej pracuje poprawnie.

Re: ACER ASPIRE VX5-591G LA-E361P - Brak głównej grafiki


by Google Adsense [BOT] 7 February 2024, 06:06

#2 Re: ACER ASPIRE VX5-591G LA-E361P - Brak głównej grafiki


by matic 7 February 2024, 08:38
Hello!

Are both graphics (Intel HD and Nvidia GeForce) detected in "Device Manager"?

#3 Re: ACER ASPIRE VX5-591G LA-E361P - Brak głównej grafiki


by naprawimyto 7 February 2024, 11:16
Intel HD jest w menadżer urządzeń, ale GeForce nie jest widoczna , w ogóle.

#4 Re: ACER ASPIRE VX5-591G LA-E361P - Brak głównej grafiki


by matic 7 February 2024, 21:28
Test the machine with another hard drive with a freshly installed OS.
If it does not change anything, try to reflash the BIOS chip. Don't forget to save the old dump.

#5 Re: ACER ASPIRE VX5-591G LA-E361P - Brak głównej grafiki


by naprawimyto 8 February 2024, 09:44
Nowy dysk, nowy system, bios również programowany , niestety widoczna jest tylko grafika Intel HD 630 nic więcej nie jest wykrywalne i wiatraki pracują na maxa

#6 Re: ACER ASPIRE VX5-591G LA-E361P - Brak głównej grafiki


by matic 9 February 2024, 14:41
Measure the following voltages to ground, when the machine is turned on:
- On coils PL1301, PL1402, PL1501, PL1601, PL7103.
- On pin 4 of chips PU7102, PU7103, UV11.
- On pins 8, 14 of chip UG12.

#7 Re: ACER ASPIRE VX5-591G LA-E361P - Brak głównej grafiki


by naprawimyto 16 February 2024, 12:47
pl1301 - 0V
pl1402 - 1v
pl1502 - 0,8v
pl1601 - 0,8v
pl7103 - 1,8v

pu7103 - 4 pin - 1,5v
pu7102 - 4 pin - 2,5v
ug12
pin 8 : 1,8v
pin 9 : 1,8v
pin 10: 9,3v
pin11: 0v
pin12: 9,3v
pin14: 1,8v

uv11 pin 4 - nie mogę namierzyć która noga jest 4 , ale jesli powinno być
napięcie 1,8v - to nie ma go

#8 Re: ACER ASPIRE VX5-591G LA-E361P - Brak głównej grafiki


by matic 16 February 2024, 17:05
naprawimyto wrote:uv11 pin 4 - nie mogę namierzyć która noga jest 4
Chip UV11 pinout:
Image

naprawimyto wrote:ale jesli powinno być napięcie 1,8v - to nie ma go
And that's the reason:
naprawimyto wrote:pl1301 - 0V

- Measure the resistance to ground on coil PL1301.
- Measure the voltages to ground on pins 1, 3, 7, 10 of chip PU1301, when the machine is turned on.

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