Anyone know the UMA conversion for the LA-G521P ?

[Bartoloni]

i searched on the web and youtube but no infos about this motherboard...
is from an ACER A515-52G ... LA-G521p REV 1A

very thank you for any info about that (also for schematics)

[Bartoloni]

Re: Anyone know the UMA conversion for the LA-G521P ?

i found that the RC133 (and also Rc134) are the "flag" resistor used to switch from UMA to DISCRETE.. looking at schematics

i removed RC133 but seems that integrated GPU is not starting ( half milliamp on power supply... probably just the CPU is "powered")

[ktmmotocross]

Re: Anyone know the UMA conversion for the LA-G521P ?

if u remove rc133 signal is low, so u must leave rc133 as it is and remove rc134.my minds blow how u could do oposite with this guide

[Bartoloni]

Re: Anyone know the UMA conversion for the LA-G521P ?

sorry my fault... ... by default on this motherboard there is ONLY RC134... this mean that DISCRETE is present...
first try i removed RC134...

without any difference...afetr that i lowered the signal moving the removed resistor to RC133 position (that is empty by default).. without any success again

can be necessary a BIOS for a laptop with this board and not discrete GPU? (asking this because i have a fast backlight flash..like some Acer do when there is a bios corruption)

[ktmmotocross]

Re: Anyone know the UMA conversion for the LA-G521P ?

i also tried to move the RC134 to RC133 (empty) on the board... but same.. i was thinking it's necessary a BIOS for an only-UMA laptop

bios is the same