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Old 05-25-2018, 04:22 PM   #1
meciu
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Default PS4 - Blue Light of Death

Model CUH-1116A, Motherboard SAB-001

-Constant blinking BLOD, nothing on display
-Left console powered on for a couple minutes and still blinking.
-Unable to enter safe mode, holding power button shut downs console after ~10 seconds
-Fan is working fine
-Added washers and nothing

Found 99% info that I can fix that only by reballing APU
but I found short-to-ground? near hdmi port, aand I'm unable to find a replacement for this mosfet? marked as 9F0DA

Anyone?
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Old 05-25-2018, 11:39 PM   #2
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Default Re: PS4 - Blue Light of Death

Quote:
Originally Posted by meciu View Post
Found 99% info that I can fix that only by reballing APU
Reballing / reflowing is only a temporary fix... if it even works. Most likely chip die is just getting separated from the chip substrate, and this is usually a result of excessive heat / inadequate cooling. If reballing or reflowing the chip makes it work again, make sure to ramp up the cooling system. This should prolong the repair a little (or possible more than a little). If I recall correctly, both the PS4 and Xbox One use the Radeon HD5770 graphics chip. The HD5k series of desktop cards are generally more reliable than the HD6k and newer series of AMD/ATI cards, but can still fail over time from excessive heat.

Quote:
Originally Posted by meciu View Post
but I found short-to-ground? near hdmi port, aand I'm unable to find a replacement for this mosfet? marked as 9F0DA
Is it a MOSFET? Or a regulator? Or a BJT? With no board designators, it's hard to tell what this is supposed to be (and I cannot seem to find any info for "9F0DA" online).
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Old 05-26-2018, 08:26 AM   #3
meciu
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Default Re: PS4 - Blue Light of Death

Allright then. I've bought board with ripped off hdmi port and pads (WLOD).
Will see if replacing shorted elements will hopefully fix this BLOD.
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Old 05-27-2018, 12:34 PM   #4
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Default Re: PS4 - Blue Light of Death

ps4 and xbox one use the hd 7770 gpu chip not the 5770
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Old 05-27-2018, 07:16 PM   #5
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Default Re: PS4 - Blue Light of Death

Quote:
Originally Posted by momaka View Post
If I recall correctly, both the PS4 and Xbox One use the Radeon HD5770 graphics chip.
PS4 and XBoner aren't that old.
They came out in 2013 or so and use GCN based Chips.
The PS4 GPU is something like a clock reduced HD7870, the XBox one is way worse and only has 768 Shaders, so something between 7770 and 7790.

So no, shouldn't be that.
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Old 05-27-2018, 07:18 PM   #6
Stefan Payne
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Default Re: PS4 - Blue Light of Death

Quote:
Originally Posted by meciu View Post
Model CUH-1116A, Motherboard SAB-001

-Constant blinking BLOD, nothing on display
-Left console powered on for a couple minutes and still blinking.
-Unable to enter safe mode, holding power button shut downs console after ~10 seconds
-Fan is working fine
-Added washers and nothing

Found 99% info that I can fix that only by reballing APU
but I found short-to-ground? near hdmi port, aand I'm unable to find a replacement for this mosfet? marked as 9F0DA

Anyone?
That sounds like a broken HDMI port, maybe HDMI Converter Thingy...


A PS4 won't start if they are unable to detect a Display.
And sadly they only have one display out that isn't even directly connected to the GPU...
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Old 05-27-2018, 08:01 PM   #7
momaka
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Default Re: PS4 - Blue Light of Death

Quote:
Originally Posted by dragos2009 View Post
ps4 and xbox one use the hd 7770 gpu chip not the 5770
Ooops, you're right. Guess my memory went corrupt there. I do remember it was HD something -770. But yeah, come to think of it, HD5770 would be a bit too old.

That makes it even more possible for the problem to be GPU (BGA/substrate) -related... But I agree with what Stefan says too: check the HDMI port connections and see if anything appears shorted. It could also be that the HDMI cable that was used with the PS4 got shorted or the connector on the TV/monitor that it was used on was damaged, and that caused damage to the PS4 HDMI. So rule out the simple stuff first: check HDMI port and the chips related to it. Unfortunately, I personally can't give you more info on that, as I haven't had the chance to service any PS4 consoles yet.
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Old 05-28-2018, 03:29 AM   #8
meciu
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Default Re: PS4 - Blue Light of Death

Quote:
Originally Posted by Stefan Payne View Post
That sounds like a broken HDMI port, maybe HDMI Converter Thingy...


A PS4 won't start if they are unable to detect a Display.
And sadly they only have one display out that isn't even directly connected to the GPU...
HDMI chip replaced already and hdmi connector is in perfect condition!
as I mentioned before, will see if replacing some of this small components near hdmi will fix something still waiting for 2nd board to arrive.

Last edited by meciu; 05-28-2018 at 03:31 AM..
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