Re: AMD Radeon RX 570 MSI Armor - not detected, fault finding
I did change Q1010 with other part but result is about the same - 1,4V on Q210 (also changed) pin 3. Could use some directions here.
@bbad899
What program do you use to open this file? After un-rar.
for.software3.45
Member
Last Activity: 03-07-2022, 02:06 PM
Joined: 01-11-2022
Location: Slo
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Re: AMD Radeon RX 570 MSI Armor - not detected, fault finding
I did notice pin1 low as well. I have done some checking back to its supply and that got me to Q210 & Q1010 (both MMDT3904).
I am unable to locate C1009 from this schematics, none of the surrounding elements are connected to pin6 of Q1010 and pin5 of Q210.
Measurements in attachment....Leave a comment:
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Re: AMD Radeon RX 570 MSI Armor - not detected, fault finding
Apparently this is the case. Any idea why would that be?
Pins and their values in attachment....Leave a comment:
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AMD Radeon RX 570 MSI Armor - not detected, fault finding
I am trying to save RX 570 MSI Armor that is not detected.
I have done some troubleshooting. So here is what I know so far:
- fans don't spin on startup
- no shorts
- no visual damage to PCB or components
- GPU is heating up
- 12V (from 2 connectors) - present
- 5V - present
- 3,3V (from PCIe connector) - present
- 1,8V - present
- 1,5V - present
- 0,9V (Vcore and/or Vmem) - present
It looks like all voltages are present but card is not detected (does not appear in device manager).
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Re: AMD Radeon RX 5700 XT Sapphire Nitro - troubleshooting and repair
Just to update situation on this one. Two 0 Ohm resistors were desoldered and the lower part was not shorted anymore. Since there is nothing else on the upper part of photo from post #10, I am pretty sure GPU itself is faulty.
Thank you all for help, but this one is going to the parts bin.
@dicky96:
I have watched your video and I can only wish it was that easy in my case.Leave a comment:
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Re: AMD Radeon RX 5700 XT Sapphire Nitro - troubleshooting and repair
@dicky96
I will definitely watch mentioned video and thank you for being prepared to help me out.
Unfortunately I did hear this in your video and I am afraid that might just be the case here. I am not really sure why or how didn't I notice this when I've done initial resistance test.
Then again I am surprised that all of fuses are still intact.
I've prepared photo with dots (points of resistance check to ground) of different colors.
- Green colored dots are the...Leave a comment:
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Re: AMD Radeon RX 5700 XT Sapphire Nitro - troubleshooting and repair
Thank you. You did save me a lot of trouble and at the same time completely negate what I came up with in my previous post.
I did some measurements and results can be seen in attachment.
I have colored good results in green and red where different results should be present. Where I was not sure if result is ok or not, I've left them black.
It can be clearly seen that pin EN2 on NB685A is not getting any signal, so chip is not enabling/starting.
Line that I thought...Leave a comment:
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Re: AMD Radeon RX 5700 XT Sapphire Nitro - troubleshooting and repair
Not a whole lot of progress but better something than none at all.
Since I've got nothing to work with I started comparing working and non-working "unknown regulators" with the same designation (numbers 2 & 3 from the first post, both FFK 153). The working one is for 5V rail on the top of the card (#3) and the non-working (#2) one was for unknown voltage source near PCIe connector. Since only the output voltage is suppose to be different I started comparing them pin-to-pin.
Here...Last edited by for.software3.45; 01-18-2022, 04:40 PM.Leave a comment:
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Re: AMD Radeon RX 5700 XT Sapphire Nitro - troubleshooting and repair
Now I do believe that I had pointed out pretty much all of the chips & possible regulators that are on PCB aside that two 8-pin ones. Those are bios chips (identical). Card has dual bios ergo two chips.
I did not see any RX 5000 series repair video, but on RX 6000 series the 1,8V seems to be produced with buck regulator. However I will try to find where the 3,3V rail goes.
dicky96, believe it or not I would not be here if it wasn't for your 2h+ video on graphics card diagnose...Leave a comment:
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Re: AMD Radeon RX 5700 XT Sapphire Nitro - troubleshooting and repair
I don't think this is the case. These regulators on the top are for Vmem + VDCCI (I think) and will only come "ON" once 1,8V is present. These NCP302155 are being controlled by NCP81022 (blue square).
Vdd on NCP81022 is present, however there is no "chip enable" signal and that should be present for controller to operate. I presume "chip enable" is not there because something is wrong earlier in the power sequence....Leave a comment:
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AMD Radeon RX 5700 XT Sapphire Nitro - troubleshooting and repair
I am trying to save RX 5700 XT Sapphire Nitro. Computer was normally shut down in the evening and next day graphics card was not responding - no post.
I have done some troubleshooting but I've come to dead end.
What do we know so far:
- LEDs light up and cycle trough colours as normal
- fans light up but don't spin
- all fuses are OK
- no shorts
- no visual damage to PCB or components
- GPU is not heating up
- 12V (from 3 connectors) - present
- 5V (from 2 regulators) - present
- 3,3V (from PCIe connector) -... -
Re: Graphics card Schematics and Boardviews
Any chance for boardview or schematics of AMD Radeon RX 5700 (XT).
Sapphire Nitro would be preferred but others will help too.Leave a comment:
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