Hey all,

I stumbled upon an Acer TC-875 UR12 recently and am going to use it as a basic gaming pc. I have already upped the ram to the board max of 32gb, added a case fan, and added an m.2 ssd for OS. I have a 1050ti laying around that I have tossed in it, but it struggles to handle 1440p in some of the games. The issue I am running into is that this tower has one of the proprietary 12vo power supplies that is rated at 300w. There is no 6 pin for auxiliary PCI-e board power and that is severely limiting my choices on graphics cards. I have a donor 500w atx handy and would like...

Hey All,

Looking at the boardview and schematic provided in the request section for this board. I have been trying to wrap my head around the powerup cycle of this laptop.
Digging through and testing using the provided information has led me to a lack of +VCC_CORE that is preventing startup. It looks like +Vcc_Core is supplied by D2/S1 of PQZ1 which is closed by D1 of PQZ1. Am I missing something?

When testing for the presence of +19VB_CPU i was testing all the boardview callouts for it which lead me to PQA1 pins 2,3,4. Pins 2 and 3 show 19v, however, pin...

Re: Acer AN515-55-57 LA-K861P

Not sure of the customs on this forum so I am just going to continue in this post. Digging through and testing using the provided information has led me to a lack of +VCC_CORE that is preventing startup. It looks like +Vcc_Core is supplied by D2/S1 of PQZ1 which is closed by D1 of PQZ1. Am I missing something?

Re: Acer AN515-55-57

Hey thanks!

I started working through the power supply side of this board and am having a hard time locating the components listed in the schematic. It seems like only a few of the components actually have silkscreened identifiers on the board. Looking through the schematic, I do not see a componentry or location diagram, is that typically not available or is it housed in another document?

Looking for board schematic for an AN515-55-57
board writing is GH51M LA-K861P Rev: 1B

When given power, the unit has lights for RGB keyboard that light up but fans do not engage and unit doesnt post. I have isolated unit down to just the required pieces and still will not post.

Thanks in advance.

Re: New Members - please post your introductions here

Hello All!

I'm RabidNative. I am located in the desert of Arizona, USA. As with most other users here, I am a long time gamer and tinkerer. I got access to my first computer (90mhz pentium) in second grade which sparked an interest in all things electric and electronic. I have spent the last 20 years moving through the different areas of consumer electronics starting with home theater, then to automotive and diesel, then over to material handling. I have a "basic" understanding of electronic diagnosis,...