Repareer je spullen Gemeenschap Winkel

Model A1418 / Late 2013 / 2.7 & 2.9 GHz Core i5 or 3.1 GHz Core i7 Processor

254 Vragen Bekijk alle

Opties

iMac doesn't boot after RAM upgrade and hard drive upgrade

I recently performed a RAM and SSD upgrade on my iMac but after reassembling everything back together, it didn’t boot up, no chime. I didn’t glue the screen back and I tried to have a look inside while the power cord was still plugged. I can see a green LED on the motherboard.

A fews things to note:

  • The iMac was unused for several months (The hard drive had errors and couldn’t be reformatted).
  • When the upgrade parts arrived I was so eager to do the replacement that I didn’t tried turning it on before performing the tear down. So don’t know if the boot issue was caused when I did the upgrade or before that.
  • When a was tearing the iMac apart, I noticed some “wet” spots on the motherboard (see attached picture)

Any help would be highly appreciated. I feel like a wasted my money.

Block Image

Block Image

Block Image

Block Image

Block Image

Block Image

Block Image

Block Image

Beantwoord deze vraag Dit probleem heb ik ook

Is dit een goede vraag?

Ja Nee
Score 0
Voeg een opmerking toe

2 Antwoorden

Filteren op:
Meest nuttige Nieuwste Oudste
Het nuttigste antwoord

Opties

Let’s look at the onboard diagnostic LED’s about midway on the logic board are four LED’s reading bottom (1) to top (4) what are they telling you?

Block Image

Was dit antwoord nuttig?

Ja Nee
Score 1

6 opmerkingen:

Hi Dan, the only LED I can see is a green one. I'll have another look and revert back to you. Thanks.

door

Hi Dan. So here's an update for the onboard diagnostics LED. It's only LED-1 (i.e 1st from the bottom) that's actually lighting up as you can see in the new picture I updated with the post above. It looks like power is reaching the motherboard. Any idea of what's happening here ? I'm starting to think this upgrade is cursed. The LCD slipped when I was removing it, it's all cracked...pffff

door

Ok, I've found this youtube video (https://www.youtube.com/watch?v=zoOchEUP...) and this tech Guide (http://tim.id.au/laptops/apple/imac/imac...) Now I understand the purpose of the 4 LEDs. Looks like the issue is the power supply. I'm gonna also give the PRAM battery replacement a try. Hopefully if I can find a new one in Mauritius itself.

door

Sadly the power supply got damages som how. You also stated the display slipped. Did you damage the connector on the logic board? Takes some pics of that so we can review if you'll need to also get your logic board fixed (replaced)

door

In fact the LCD was already disconnected from the Logic board when it slipped. It was the second time when I was opening the device to take a picture of the motherboard with the power cable plugged in. I don't think I've damages the connectors. However, the 1st time I was disassembling the device it was a bit hard to remove the power supply maybe that's when it got damage. Still thinking if it's worth repairing...pfff

I'll add pictures of the parts and update the post.

Thanks for your support

door

1 commentaar meer tonen

Voeg een opmerking toe

Opties

Does it have power? If the system turns on but doesnt boot, its likely to be the HDD or Ram. But, if it doesnt turn on at all, its a different issue.

Was dit antwoord nuttig?

Ja Nee
Score 0

1 Opmerking:

Hi, my guess is that the device is having power because when I see a green LED on the motherboard. But when I press the power button, nothing happens, no chime, the fan stays still. I've tried to put back the old RAM & hard drive but it's dead

door

Voeg een opmerking toe

Voeg je antwoord toe

Christopher Adolphe zal eeuwig dankbaar zijn.
Weergavestatistieken:

Afgelopen 24 uren: 0

Afgelopen 7 dagen: 0

Afgelopen 30 dagen: 1

Altijd: 111