Re: Ongoing Acer Predator Triton 300 G53G LA-L191P woes
So.. A two year old laptop is now useless/only useful as a donor? I did always wonder why they never seem to put a heatsink on the PCH most of the time.. Seems its possible to swap them and clear the ME but you're saying its pointless? Just great.. How can Acer get away with that?! It cost me £900, the seller lied and it had its warranty registered, so i can't even return it to them.. I guess i should contact Acer and see if they will do anything? I can't really afford to replace the motherboard or get another laptop, selling...
chaoshusky
Member
Last Activity: 04-20-2025, 08:47 AM
Joined: 08-11-2023
Location: Derbyshire
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Re: Ongoing Acer Predator Triton 300 G53G LA-L191P woes
Argh! I hope Seph can understand what i wrote, i tried my best! My phone camera tends to produce massive jpeg files lol that's why after each measurement i said "not xx" as on the pictures.. I'll do it later when i'm back from the doctors, i hope he hasn't disappeared..
Regards,
LeaLeave a comment:
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Re: Ongoing Acer Predator Triton 300 G53G LA-L191P woes
Well...this isn't looking good! I assumed 0v means a probe on ground, i tested each side of the inductors and here are the disturbing results..
Okay, from left to right, doing the 'top row' first along the board's longest edge we have 6.67M not 4M, 0.07ohm not 1.8k, 3.4k not 31k, 0.5ohm not 31k and 0.06 not 1k!
Next row is:
567ohm instead of 400, 0.4ohm on the GPU inductors not 1.1 (it used to read that across the inductors and across the GPU rail reads 0.6 now, i have installed the new FETs but can...Leave a comment:
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Re: Ongoing Acer Predator Triton 300 G53G LA-L191P woes
So.. On that side of PBR46 and PBR3 to ground, PBR46 measures like...38Kohms then slowly rises, the other side when i get a good connection suddenly goes to 247K then slowly drops..that's rather puzzling! A little resistor there measures correctly, but the super small ones nearby close together measure around 800K and 1.7M! I hope my meter isn't on the way out but I've also cleaned the probes.. Don't know if that will help you or not!
I'll now go and measure the rest and report back. Sometimes when i reconnect...Leave a comment:
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Re: Ongoing Acer Predator Triton 300 G53G LA-L191P woes
Sorry for not checking this for a while, i am desperate to fix this its just a matter of finding time to do it at the moment.. Doctor's appointment tomorrow!
I have done a few measurements myself, including making sure ADAPDET signal still present and other...probably pointless things! I'll check what you've posted shortly.. Get the joke? Shortly.. Heh, that was terrible. Anyway, a few curious things are the RTC battery is at 2.5v, plugged in it now drops to 1.2v.. Battery is disabled so no power, guessing the...Leave a comment:
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Schematic/BoardView for Compaq LTE Lite 4/33C?
I know this is a long shot, but i have a unit and its dock here that has suffered an internal battery leak, so there's no POST and it would seem the PCB damage is minimal, however the leakage has mostly ended up flowing into the interconnect that links the main and daughterboards as well as the PCMCIA slot that's used for the RAM upgrade..
Any info is appreciated! Other than a partially intact website that just shows how to get to the battery, so i had to do some careful unscrewing to totally strip it, i can't seem to find much!
Kind regards,
Lea -
Re: Ongoing Acer Predator Triton 300 G53G LA-L191P woes
Sorry for being a little b*tchy, I'm not always good with words which doesn't really help on a forum does it? Lol..
Thing is with pics, an embarrassing thing was..my hot air station was malfunctioning, not getting as hot as it should, so i've caused a little more discolouration to the PCB.. Had to fix that first of course! Nothing serious, but that's something i forgot to say! The VRM PCB location for the GPU was already "changing colour" if you know what i mean, from the heat? The Chokes don't seem to...Leave a comment:
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Re: Ongoing Acer Predator Triton 300 G53G LA-L191P woes
Some of this is true, though i wasn't "playing with the heatsink" like you seem to think and there seems to be design flaws with this laptop. It could well be a BGA problem too, but i think you're assuming quite a bit here yourself as i've been able to repair and build things for 30 years. I didn't come here to be insulted, i finally have the diagrams so i can dig more without having to reverse engineer the connections as i go. I guess my 'assumption' is based on the hotspot, the fact that it got worse,...Last edited by chaoshusky; 08-22-2023, 08:29 PM. Reason: I didn't cook it for days.. Must have cooked it in a few hours lolLeave a comment:
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Ongoing Acer Predator Triton 300 G53G LA-L191P woes
Well, this is the second laptop of the exact same model and spec to die on me, the first one lasting a month. Fortunately that was returnable, but apparently the seller lied to me about this one and had even had its warranty registered, so very much out of luck there and can't afford to lose £900..
Anyway, it had been having issues for a while again with throttling, after fixing it briefly..almost like the heatsink is defective and slowly coming away! Worked great for a while, but started throttling on the GPU and throwing the odd blue screen, even when running in non turbo or... -
Re: Schematic required for Acer Predator Triton 300 G53G LA-L191P
Thanks again so much Al! Almost everything i need now.. Guess I'd better open another thread just to write the symptoms! I'm not quite as much of a noob as some seem to think, just hate the way how difficult and obfuscated they make board level repairs these days!Leave a comment:
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Re: Schematic required for Acer Predator Triton 300 G53G LA-L191P
No i haven't my friend.. At this point I've already taken enough off the board, kind of trying to avoid pulling off a bunch of components just to test them, they could be at fault, but from what was happening to the laptop before it completely died (insane hotspot VRM temp) I'd be rather surprised if the inductors had failed! There is continuity but it's starting to seem like right to repair is rather pointless and devices are designed more and more to not even be serviceable by full blown repair centers and even...Leave a comment:
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Re: Schematic required for Acer Predator Triton 300 G53G LA-L191P
Do those resistances sound normal? Also, does anyone happen to have the BoardView file for it? A lot to ask i know, i just hope i can fix it as it was second hand, seller lied to me and i really can't afford to buy a new one.. Can't find a board cheap either, one i found with a dead CPU was £120!Leave a comment:
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Re: Schematic required for Acer Predator Triton 300 G53G LA-L191P
Holy heck that was fast! Thank you everyone! The only reason i suspect the VRMs is everything else measures normal and the resistance was literally so close to zero even my old school Fluke that can measure lower was like "yeah that's a wire" lol
It did however show around 0.2 across the rail caps.. Once i've removed the old VRM modules it is actually now around 0.6-0.8, so did change. Don't think there are any dead caps but its been dead a month so far... Good to know insanely low resistance...Last edited by chaoshusky; 08-19-2023, 06:36 PM.Leave a comment:
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Schematic required for Acer Predator Triton 300 G53G LA-L191P
I can't find one for the life of me! Does anyone out there feel kind enough to share one with me? I thought it was the VRM for the GPU that had failed (showing 0.1-0.2ohms) however i fear its the GPU, which i'd like to find out without removing all caps and other components on the power rails!
Kindest regards,
Lee/Husky -
Re: New Members - please post your introductions here
Hi there! I've been an avid tech and electronics fan since i was about 3 years old.. Figured it was about time i joined! Plus my laptop decided to fail on me and it seems to be the GPU, hoping i could find a schematic so i don't have to reverse engineer!
I have way too much retro hardware though, i need a good clear-out!Leave a comment:
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