Naomi 1 Fan broken??

PCB problems and fixes
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gnomx
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Naomi 1 Fan broken??

Post by gnomx » August 29th, 2019, 11:26 am

Hi there.
Today I noticed this :
Image

Some one can tell me how can I fix it??
Many thanks.

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DaveyD
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Re: Naomi 1 Fan broken??

Post by DaveyD » August 29th, 2019, 12:14 pm

looks like you have ripped the middle out of the chip the heatsink was attached to :(

If that's the case its not an easy job to replace. For the cost of a naomi 1 board it may be as well to just buy another unit

gnomx
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Re: Naomi 1 Fan broken??

Post by gnomx » August 29th, 2019, 12:27 pm

DaveyD wrote:
August 29th, 2019, 12:14 MP
looks like you have ripped the middle out of the chip the heatsink was attached to :(

If that's the case its not an easy job to replace. For the cost of a naomi 1 board it may be as well to just buy another unit

Oh bad new bro.
Ok don't worry , I get it into basket trash!! :(

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nem
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Re: Naomi 1 Fan broken??

Post by nem » August 29th, 2019, 1:25 pm

I wouldn't trash it. The case and filter board are fine. Just buy one of the yellow smelly ones from Yaton and swap the mainboard over.

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Hydreigon
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Re: Naomi 1 Fan broken??

Post by Hydreigon » August 29th, 2019, 2:26 pm

Ouch. This looks like a literally broken GPU. Mame describes the GPU as a "VideoLogic/NEC 'CLX2/HOLLY' chipset and PowerVR2 GPU (large BGAxxx, with heatsink and fan)". We already know how difficult the process of applying a BGA chip is but finding a replacement chip is already difficult enough (for obvious reasons).

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leonardoliveira
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Re: Naomi 1 Fan broken??

Post by leonardoliveira » August 30th, 2019, 4:10 am

That's actually a common fault. When post office treat parcels rough, the weight of the heatsink+fan assembly rip off the GPU die/core from the flexible PCB it's attached to. That happens with the NAOMI2 too. Since it has two holly chips it breaks twice as easy.
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