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90Ninety replied to Zotac RTX 3060 , another learning experience

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

03-13-2025, 08:20 PM
So I am looking at a board view suggested above, believed to be for an MSI 3060. The board I have shares a very similar PCB but does not have all the components populated compared to the MSI

Here is the progress so far, tracing out where this enable signal comes from.

[B]PICTURED BELOW [/B]
From pin 36 of 9512R to a 10K resistor

To a SC70_6 (Pin 3) PS_NVVDD_EN_R

[ATTACH=JSON]{"alt":"Click image for larger version Name:\tEnable Trace.png Views:\t0 Size:\t9.12 MB ID:\t3592619","data-align":"left","data-attachmentid":"3592619","data-size":"custom","height":"537","title":"Enable...

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90Ninety replied to Zotac RTX 3060 , another learning experience

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

03-13-2025, 06:48 PM
Sorry, I'm an idiot, there is no EN signal

I guess I have to trace out the logic going to this pin (pin 5 of 9512Rs)...

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90Ninety replied to Zotac RTX 3060 , another learning experience

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

03-12-2025, 07:47 PM
I did have a look yes, I checked the EN pin, there is 1V , should this be higher ?...

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90Ninety replied to Zotac RTX 3060 , another learning experience

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

02-27-2025, 01:34 PM
This card is driving me insane

After changing the PWM controller, there is no difference, still no VCORE.

I am beginning to lean on that there is a faulty/ blown component on the logic circuitry. I checked the card with an IR camera, there seems to be one [B]SN74LV1T08[/B] (of a pair) that is heating up to around 60 degrees. As shown on the right of the IR photo

[ATTACH=JSON]{"data-align":"none","data-attachmentid":"3582715","data-size":"medium"}[/ATTACH]
The IR image is slightly off...

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90Ninety replied to Zotac RTX 3060 , another learning experience

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

02-14-2025, 08:41 AM
Hi buddy

Thanks for your input on this thread, I hope it helps with your card also. Sorry for the delayed update, here is the image.

[ATTACH=JSON]{"alt":"Click image for larger version Name:\tIMG_20250214_142854490.jpg Views:\t0 Size:\t3.25 MB ID:\t3571649","data-align":"none","data-attachmentid":"3571649","data-size":"custom","height":"686","title":"IMG_20250214_142854490.jpg","width":"515"}[/ATTACH]

[ATTACH=JSON]{"alt":"Click...

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90Ninety replied to Zotac RTX 3060 , another learning experience

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

02-09-2025, 05:01 PM
:/

Damn one of the DRMOS blew again . This time I replaced all the BL00 DRMOS phase chips. However now again there is no VCORE voltage, however all other voltages are present on the other coils ( VMEM, 1.8V PEX, 5V)

Should I look into replacing the 9512Rs controller, I checked the Enable PIN , there is just 1V...

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90Ninety replied to Asus Z170i Pro Gaming Boardview

in BIOS & Schematic Requests!

01-03-2025, 05:54 PM
Anyone?

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90Ninety started a topic Asus Z170i Pro Gaming Boardview

in BIOS & Schematic Requests!

12-18-2024, 12:29 PM
Asus Z170i Pro Gaming Boardview

Its my first time looking for board views .. Seems there are many board view websites for the Asus Z170i Pro Gaming .. However they are behind a paywall , I wondered if anyone has or could direct me to a free one ?

I have a board that does not have 3.3V on the PWR ON button .. I am trying to trace where this track goes

Thanks...

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90Ninety replied to Dell XPS 8100 Motherboard VRMS keep blowing

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

10-05-2024, 08:12 PM
I fixed this

I wound up replacing all the phase mosfets .. No issue now

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90Ninety started a topic Dell XPS 8100 Motherboard VRMS keep blowing

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

10-05-2024, 08:36 AM
Dell XPS 8100 Motherboard VRMS keep blowing

I wanted to save this thing from E-waste ... I helped a neighbour with their Dell PC , it had a blown visably blown VRM causing a short on the 12V EPS ..

I replaced this VRM which fixed the short but, the high side VRM's keep blowing , seemingly the same two phases .. I replaced the low side mosfets on the respective blown phases . Though still the High side VRMS are blowing ..

After a few minutes one of the four phases will get extremely hot , then blow ..

I purchased replacement VRMS both High Side (72T02GH) and Low side (86T02GH). Pictured below , I just...

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90Ninety replied to Zotac RTX 3060 , another learning experience

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

07-16-2024, 02:03 PM
Fixed now , by replacing the BL00 DRMOS

This is one of two I fixed with the same fault , same phase also .....

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90Ninety replied to Zotac RTX 3060 , another learning experience

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

06-16-2024, 12:47 PM
I created a video of troubleshooting so far

[url]https://youtu.be/Rl353_YETQ4[/url]https://I created a video of trouble...53_YETQ4[/url]

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90Ninety replied to GigaByte AX370 Gaming K7

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

06-10-2024, 04:23 AM
Try some of the eariler BIOS files .. Often you cannot jump BIOS versions , meaning you have to go from 21,22,23 and so on...

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90Ninety replied to Zotac RTX 3060 , another learning experience

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

06-09-2024, 12:41 PM
OK I done some Google-Fu

A vlogger on youtube called 'Northridge Fix' has a video fixing this exact card [URL="https://www.youtube.com/watch?v=yh2acRteSVo"]here[/URL] .. So I followed some of the diagnosis steps . I also identified the Rails

All resistances check out fine ( to Ground)

12V 10's K Ohm rising - Jumps to Megaohm's after several seconds for some reason 🤨
3.3V Thousands K Ohm rising
1.8V Kilohm Rising
5V coil Kio Ohm Rising
PEX 60 Ohm ( double than video shown )
Memory Rail 30 Ohm
Checked...

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90Ninety started a topic Zotac RTX 3060 , another learning experience

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

06-09-2024, 09:43 AM
Zotac RTX 3060 , another learning experience

Disclaimer Firstly I am by no means expert and this is still a learning experience , I buy broken stuff , with the intention to fix or learn something by failing.. I wanna break this into a few sections, please feel free to mention the section if replying , to assist me on getting a better understanding

[B]Part 1 , identifying Rails .[/B]. So for the record , I understand on NVIDIA cards there are several Rails. Along with their Supposed Voltages ( Voltage depends on age/ generation )
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"400","title":"3060...

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90Ninety replied to GigaByte AX370 Gaming K7

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

06-09-2024, 07:10 AM
How did you program the BIOS chip .. did you remove it ? I had this board before , it has dual BIOS chip , and two switches on the motherboard at the bottom . The two switches were , one for allowing dual bios ( Off or On ) , the other to select which bios ( BIOS 1 or 2)

You may have the Dual BIOS switch off , and are measuring or flashing an inactive chip ?

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90Ninety replied to Qnap TS453 Semi Working Motherboard , though 12V to two disks only

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

05-22-2024, 03:48 PM
I replaced the 4955M Power Mosfet , though this makes no difference . There is something stopping the mosfet from sending the 12V to the SATA port .....

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90Ninety replied to Qnap TS453 Semi Working Motherboard , though 12V to two disks only

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

05-10-2024, 06:42 AM
Seems the markings on the components are not clear .. Perhaps the alcohol wash removed them

Cant seem to find anything definitive on the marking I can see , what are [B]4955GM[/B] & [B]WRA-D33[/B] .. Unless I have recorded them incorrectly ?Seems the markings on the components are not clear .. Perhaps the alcohol wash removed them

Cant seem to find anything definitive on the marking I can see , what are [B]4955GM[/B] & [B]WRA-D33[/B] .. Unless I have recorded them incorrectly ?Seems the markings on the components are not clear .. Perhaps the alcohol wash removed

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90Ninety replied to Qnap TS453 Semi Working Motherboard , though 12V to two disks only

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

05-10-2024, 06:25 AM
I suspect , that this component 4955GM ( MOS?) is the culprit

[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3268347}[/ATTACH]

. Since on Pin 1, 2 & 4 have 12V Then pins 7 & 8 go to the 12V on the Sata on the 2nd slot ( non working) .. Though I cant seem to find a trace to the 1st slot 12V . Perhaps I will replace this , then see ..

Also this looks suspicious ( WRA D33) , though not sure what it is, seems to be a much higher resistance compared to...

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90Ninety started a topic Qnap TS453 Semi Working Motherboard , though 12V to two disks only

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

05-10-2024, 04:52 AM
Qnap TS453 Semi Working Motherboard , though 12V to two disks only

Hi

I have a 453 Mini , two of the four Sata ports are not getting 12V . I am wondering if anyone has knowledge on hardware repair on these devices . I have attached an image of the board , it appears the Sata ports are powered in pairs , the right pair are working , left pair no voltage ( 0.2V)

I have tried tracing the 12V rail , though have not been successful . I am guessing there is a Transistor or Mosfet that is open

Any help , perhaps a schematic?

The board otherwise appears to work fine .. Boots up ,
...

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