Hello.
Looking for some help mainly to read schematics and understand posible reasons for missing signals.
GPU in question is 6800xt red devil.
It was artifacting to begin with, Tserver memtest's no faults found. Put card on shelf for 6 months. started troubleshooting again last week and card is totaly dead.
12V rail
5V rail
3.3_AUX and thats it.
1.8V_S5 missing and no other voltages.
I dont have Enable signal for 1.8v
Schematics and boardview attached.
Can any one advice me on what signals should i investigate. ? Thank...
Benass
Senior Member
Last Activity: 01-26-2025, 12:33 PM
Joined: 10-21-2020
Location: London
-
To close this topic up. Got bios file from another place.
Did not fix the issue. Suspect Dead CPU.... -
OMG. im such a (special person). thanks for pointhing it out.
found another chip. XMC.
Bios file downloaded. attached.
Original issue no display. Power on power off. Laptop charging battery. Same behaviur with ram or without ram....Leave a comment:
-
Hello.
i have read rules and sorry for missing somethin important.
Laptop MOBO FH52M LA-J891P Rev: 1 B
S/N:NHQ7CEK00203408B623400
SNID:03403568234
Chip ID 25Q80EWS 1.8v
Programmer rt809f
Progrmaer detects chip but incorectly,
001: Serial number:20220930091656-021364, Programmer firmware version: V5.0 .
002: Auto identified 13 ID is match with the partnumber.
003:
004: The currently selected:W25Q80DW@SOIC8-200, capacity: 8Mbits, 1Mbytes.
005: RT809F V5 , VCC = 1.8V
006: >------------------------------------OK---------------------------------------<...Leave a comment:
-
Acer Predator Triton 300 PT315-52-75WQ
Hello. Need help.
Cant post original bios, chip cant be read. (dead bios chip)
Laptop power on and power off, but no display.
Originaly laptop had faulty CPU mosfet no power. Mosfet replaced, but bios chip dead.
Any advice would be appreciated.... -
Unfortunately, Its crashing on Game benchmark like Heaven. So next is investigating memory and gpu core.Leave a comment:
-
[B]Update[/B]:
After doing some research, I learned that the IR35217M is a programmable chip and has USB005 along with software to monitor AMD GPU core voltage phases. I bought a dongle, installed a utility program, turned on telemetry, and received a report indicating an issue with phase 4.
I took some measurements and found a shorted capacitor and one resistor on the same line. After replacing the faulty components, I got the core voltage working, and the GPU is now displaying an image. [HR][/HR][B]Update[/B]:
After doing some research, I learned that the IR35217M isLeave a comment:
-
GigaByte Radeon Rx5700xt 8gb VDDCR_GFX_PWR_GOOD Signal is missing.
This will be a headscratcher. I don't know how to break it down to a readable topic.
Im troubleshooting Rx5700 GPU. Core voltage missing.
I have schematics and Boardview.
I'm currently troubleshooting a power management setup that involves the [B]IR35217M[/B] and [B]NCP81022[/B] chips. I've encountered some issues specifically with the [B]SM_ALERT#[/B], [B]SM_DIO[/B], and [B]SM_CLK[/B] pins, and I'm hoping to get some insights or suggestions from those who might have experience with these components. [B]Current Observations:[/B][LIST][*]The [B]SM_ALERT#[/B] pin is active... -
This is unrelated but might help you make a decision.
I had small cap missing on ps5 HDMI port. So i installed the smallest one i had but clearly bigger then it supose to be. unfortunately bigger cap affected display, i was getting blue snow dots and ps5 was displaying only in low resolution. i had to remove that cap. ps5 worked flawlessly without it.
Sometimes bigger caps maks no difference, but sometimes it can backfire. the one needs to know the reason for that part.Leave a comment:
-
As of now, customer decided to replace entire mainboard. Original ssd working fine in new(second-hand board) .
At the moment i don't have access to another screen, so can't continue investigation any further.
I can't confirm but have suspicion its something to do with data lines and cpu....Leave a comment:
-
Bios fully updated. Tried 7 different nvme SSD. ( including original) This is so unusual.
Forsee has 6 data lines only, Other drives have 8 or more. maybe there is a problem with a data line, but at this point im just guessing.Leave a comment:
-
Thanks for sugestions. Laptop will not detect any nvme ssd. Apart from Forsee.
I just discovered: Orignal SSD is working, I installed it into usb to nvme and run health check on my pc its fine.
so it must be Laptop motherboard issues, or bios, im so confiused.Leave a comment:
-
[ATTACH=JSON]{"data-align":"none","data-size":"large","data-tempid":"temp_344564_1721752276138_135"}[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"large","data-tempid":"temp_344563_1721752286760_664"}[/ATTACH] [B]Interface[/B][LIST][*][B]Sabrent Rocket 2230[/B]: NVMe PCIe Gen3 x4[*][B]Dogfish 256GB M.2 2230[/B]: NVMe PCIe Gen3 x4[*][B]Forsee E2M2[/B]: Typically NVMe PCIe, but could vary (confirm specific model details)[/LIST][B]Performance[/B][LIST][*][B]Sabrent Rocket...Leave a comment:
-
Surface Laptop 3 Not Detecting SSD - Need Help!
Hey everyone,
I'm having an issue with my Surface Laptop 3, and I could really use some help. I've tried everything I can think of, but my laptop just won't detect any new SSDs I install. Here's a rundown of the situation:
[B]Problem:[/B][LIST][*]My Surface Laptop 3 isn't detecting any new SSDs, including a Sabrent Rocket 2230 256GB NVMe SSD and a Dogfish 256GB M.2 2230 NVMe PCIe Gen 3.0 x4 SSD.[*]Both SSDs work fine in other laptops, so I know they are functional.[*]The laptop does detect a Forsee 64GB SSD from my Steam Deck, and I can successfully install Windows on it.[/LIST][B]What... -
Yes, speakers I'm using for testing is 8 ohms standard basic. And they working.
I looked through schematics, and considering to disassemble entire front, remove radiator to get access to transistors and diodes.
Can't measure anything thro outputs becoz there are relays between transistors and outputs.
Also this thing is big and everything is cramped inside in a small factor. Annoying device to say the leastLeave a comment:
-
(2) For ASO (when the last protection incident was ASO protection)
FLD P R T : A S O
Cause: The line between speaker terminals is shorted, or use speakers having impedance less than that specified.
Supplementary information: As the excess current is detected after operation of the speaker relay, the shorted
speaker terminal and the connected speaker can be identified.
Turning on the power without correcting the abnormality will cause the protection function to work about 5 seconds
later and the power supply will be shut off.
this is what i i...Leave a comment:
-
Manual can be downloaded here. Its 36mb and to big to upload.Leave a comment:
-
Marantz NR1601 No Sound, Schematics attached.
Certainly! Here's a revised version of your text:
---
I own a Marantz NR1601 receiver, but unfortunately, I'm experiencing an issue with no sound coming from any of the outputs. I'm seeking assistance to identify the most likely cause of the problem.
The unit powers on without any issues and seems to be functioning properly. I've noticed that the relay clicks after about 10 seconds, indicating that it's going through its startup sequence. There are no visible signs of damage, and I don't detect any burnt smells.
While the schematics provided... -
Benq sw2700pt backlight
Looking for help. Need to find this backlight strip, or Need help identifying LED's
They emit blue light. Nice monitor will become Ewaste if i cant identify these LED's [ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3211129}[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3211130}[/ATTACH]Looking for help. Need to find this backlight strip, or Need help identifying LED's
They emit blue light. Nice monitor will become... -
This would be my guess as guidline. for BZ3Y but im not experianced enoght so seeking some advice, or guidance....
Leave a comment:
No activity results to display
Leave a comment: