I have an old laptop, Packard Bell Ares GM2 which needs a reball but the nvidia chip on it is old, like 2007 old, G86-703-A2. I suggested the client to upgrade it and found at HKLRF G86-731-A2 2010 at 29$ and 2012 at 33$. They are not that expensive. Possibly both are with white underfill, whatever that means. Now, my problem is that in an old thread somewhere I've read that the 2012 might need some bios tweek or upgrade. That thread is lost on me and would like some clarification before I make the order. Is it safe with 2012 or should I go 2010 instead.
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Re: G86-731-A2 choices
If you're buying a new chip, get a 2010 d/c one.
2012 are fake, relabeled 2007. Meaning they will die. I have a couple G86-703-A2 "resurrected" left, but they're gonna need undervolting to be kept alive. If you think you can do it, i can mail you one.
Either way, they run best with 730-A2 or 731-A2. I gifted one to a friend of mine which i fixed with a 730-A2, chip pulled from a Sony Vaio with irreparable water damage. Going strong since February, and i dropped by his place and undervolted it to 0.97v last month. Oughta work fine at least 1 more year.
Last edited by Th3_uN1Qu3; 08-12-2014, 04:48 PM.A working TV? How boring!Originally posted by PeteS in CA -
Re: G86-731-A2 choices
Allright, I will keep the 2010 one. I could try and undervolt some motherboards I have here(a dv9000 too) but I going to need a map too.
Im struggling to learn how to read schematics and diagnose motherboards. Any idea where to begin properly?Comment
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Re: G86-731-A2 choices
some sellers told me not all newest chip are fake. here is a chip i have bought.
it looks completely different on color and all between the 2
hope this help.
edit: according to that post:
http://uken.tv/index.php?option=com_...mid=75&lang=en
if edge are smooth and nvidia logo is the same then they are fake. in mine edge are well made and also all corners are good.
looking for other opinion to spot fake vs original
Attached FilesLast edited by dellxps15; 08-13-2014, 04:52 AM.Comment
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Re: G86-731-A2 choices
I still find it hard to believe that nvidia would still be making those just for repair shops.A working TV? How boring!Originally posted by PeteS in CAComment
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Re: G86-731-A2 choices
me too, but around bga (do many models)there is still big profit..... and nvidia sell of each chip package of 350-500 at once... so for 5-7€ each chip is still some money considering all the bga models out there. plus remake some chip is that hard for company.
on some ebay seller i see also the nvidia sticker with all detail available.Comment
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Hi,
I bought a mac air 2012 very cheap, because the customer didn't want to fix. After reflowing the ram chips the laptop works fine, I tested the ram and no error. But The fan goes at max speed after few seconds. Running the Apple diagnostic finds an error 4SNS/1/C0000008: Th1H--124. and the cpu usage is like 300%, After disconnecting the webcam cable that on the 2012 model is on the IO board, the laptop, the laptop runs fine, and running the apple diagnostic finds no errors. So the problem is related with the webcam, but I suspect the problem is no the webcam but the light sensor.... -
Hi everyone! I'm trying to fix my black screen / failed U8900 GPU v-core on my Mid-2012 Macbook Pro 15" Retinaby doing a rework/reflow of the chip (once I determine that's the real issue; but it likely is).
I've been disabling the GPU in NVRAM for a few years... but it's just time for a better solution.
I'm new to soldering but the only feasible way to fix this issue is to do something myself.
MY QUESTION:
I've been seeing some people (on this forum mostly) run into issues with the logic board needing a serial number or it being deactivated (?)... -
OBDATA Raccoon Computer V1 for Macbook Pro Air 2012-2025
It's the end of three years of work, it costs money, it costs time, and you owe me a beer.
This is the new database for FlexBV
it's optimized to work with it
by using board ID has Default name, give us the opportunity,
to use other diode board data with sibling board or family board
I Merged the whole data (optimal)
A2991 A2992 M3 -> -> 2 Entries diode data M1
A2681 A3113 A3114 M1 M2 Air -> -> 2 Entries diode data M1 M2 13"
A2442 A2485 A2779... -
Hi everyone.
I hope someone has some suggestions on how to proceed with this issue.
I have an Apple A1286 2012 MacBook Pro with 820-3330 Logic board. My customer purchased this from me in full working condition. Unfortunately, it overheated on him due to being left running on his bed.
Investigation showed the LCD Backlight was not working (had a latent image and external monitor worked), the battery was no longer functioning (system couldn't read it or charge it) and the Samsung 850 EVO SSD was dead (not seen by finder or disk utility). Quite the trifecta.... -
Apple MacBook Air 13'' LATE 2010 820-2838 820-2838-A 820-2838-B Boardview...10-22-2024, 02:37 AM
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