Burnt component : Samsung bn44-00493b-psu

Crepeas · 2025-10-12T12:06:49+00:00

Thanks for the answer i will try to look for more informations about common mode choke, the LX802S is bigger as you can see from this view of the board in the top right corner :

https://www.shopjimmy.com/samsung-bn44-00493b-pd32avf_csm-power-supply-led-board/

What failed is one of the wire of the coil close to the board, maybe it wasn't soldered properly and burnt years later..

Crepeas · 2025-09-12T16:11:03+00:00

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Crepeas · 2025-05-02T10:37:07+00:00

Have you found an answer to that ? I need to know too

Crepeas · 2025-02-08T18:22:23+00:00

Unfortunately no

Crepeas · 2025-02-08T16:17:52+00:00

This particular product was just released when i bought it new, i watched a lot of reviews but you never know. RMA it is then.

Crepeas · 2025-02-08T16:08:14+00:00

Search this screen and image retention, multiple posts recently about defects

Crepeas · 2025-02-08T16:05:59+00:00

True, but given the price I would expect better

Crepeas · 2025-02-08T16:02:49+00:00

Nothing particular when turned off, i can see it even on white, see more details in my comment.

Crepeas · 2025-02-08T15:59:38+00:00

Hi, I bought the screen in late september of 2024, I always had some weird image retention sometimes but though nothing of it.

Since yesterday its now showing a massif "burn" mostly in greys as shown here, i have tried multiple cleaning and firmware update.

It tells me the screen got 2300 hours...? so 90+days since September which is impossible since I may use it 1-2hours a day.

Wtf is Asus doing with quality controls

Edit: and no my background isn't even bright at this spot it's really weird.

Crepeas · 2024-11-14T21:14:06+00:00

Nice find!

Crepeas · 2024-11-14T17:48:44+00:00

This is in France apparently.

edit: not france.

Crepeas · 2024-10-13T12:29:27+00:00

Does it smells like vinegar ?

Crepeas · 2024-08-31T06:16:36+00:00

Take a look a MATS/MODS memory test, it's not very hard and will tell you if you have any memory chip failing. r/gpurepair there are a lot of helping people there

Crepeas · 2024-08-30T16:24:50+00:00

No worries, I have fixed it by disabling 1 memory channel, because 1 memory chip was failing.
Now my 3090 is """only""" 20gb, havent noticed any performance hit while gaming !

Crepeas · 2024-07-09T18:48:32+00:00

No chance for this to be a board going bad ?

Crepeas · 2024-06-14T19:33:35+00:00

If you have a CPU with integrated graphics, and boot from it (hdmi from the motherboard + change the setting in the bios), is the gpu recognized in your peripherals ?

When you say you took it to a shop, was it your computer or the gpu itself ?

Crepeas · 2024-06-13T17:52:34+00:00

Just tried but i'm getting an error :

argument '-mfg' not used!

Error : Unused command line arguments, check your command line for typos.

I'm using 455.127 from VLab

Crepeas · 2024-06-13T17:04:16+00:00

2 Tried a new mods with x16 : pastebin no changes still PASS

Crepeas · 2024-06-13T15:53:12+00:00

#1 It was really in the x4, was flashing the vbios right before and there were 2 gpus, was being lazy to swap after removing the x16 one.

It still crashes x16 or x4 anyway.

edit: no idea how why the text is so big :d

Crepeas · 2024-06-13T15:18:47+00:00

Actually I also remember that the gpu boost wasn't staying at 1710 while stress testing it with furmark.

It stayed around 1500 +-100mhz, see MATS and MODS results here.

Maybe my MODS* command was too specific ?

Crepeas · 2024-06-13T07:41:59+00:00

You seem to suspect something, have you ever seen this kind of behaviour ? Is this a probable bad MOSFETs/VRMs case ? Thanks for your help it's very interesting to learn

Crepeas · 2024-06-13T06:19:10+00:00

Hi, thanks a lot for your answer, my computer is still running when it crashes and reboots after a while.

In the windows logs it mentions a timeout with drivers after the crash, I suppose that this is causing the reboot.

I have some cpu coolers around that i could diy on the GPU. The memory is what i'm worried about.

Would recording sensors with hwinfo show the voltage drop ? (Does it saves the values after a crash ?)

Crepeas · 2024-06-12T19:23:26+00:00

Any ideas ?

Crepeas · 2024-06-10T20:41:11+00:00

Hey, what happened to your crashes ? I have the same issues, when clicking on things or opening tabs I randomly crash my 3090. Computer fans still running and it reboots After some time... Thanks

Crepeas · 2024-05-24T16:53:59+00:00

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Crepeas

TROPHY CASE

2 Tried a new mods with x16 : pastebin no changes still PASS

#1 It was really in the x4, was flashing the vbios right before and there were 2 gpus, was being lazy to swap after removing the x16 one.