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openminded replied to can anyone help with enabling UMA on the 9500 XPS board ( LA-J191P ) ?

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-28-2024, 07:48 AM
In the mean time I soldered off a bunch of coils like PL900/901 and the capacitor next to the GPU. Then the BIOS didn't show the dGPU with a name. The diagnostics still show what is in the attached picture ( Skin temp 128 ).
Does anyone know if the assumption that that is because of the P15 note:
DVT2.1_08:EC read DGPU always high that thermal PL4 error,so it's should control by BOM optoin
Add RH6907(UMA@) ,change RH516 to DIS@
?

I did this after studying an i5-10300H board that has no NVIDIA chip. I couldn't find any differences in resistors in the places...

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openminded replied to can anyone help with enabling UMA on the 9500 XPS board ( LA-J191P ) ?

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-24-2024, 07:08 AM
I added a picture of the motherboard where UH2 is, this is where all UH2x things are in I suppose? I also added a picture of UE3 .

Besides the above resistor change and the related question, does the note from P15 apply :
DVT2.1_08:EC read DGPU always high that thermal PL4 error,so it's should control by BOM optoin
Add RH6907(UMA@) ,change RH516 to DIS@

I understand that a resistor needs to be added at RH6907 but what does the second part mean precisely ?
It seems needed to not have the termal trip and is part of getting an all power good it seems...

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openminded replied to can anyone help with enabling UMA on the 9500 XPS board ( LA-J191P ) ?

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-24-2024, 01:37 AM
are you certain about RH567 TO RH566 ? Isn't that for the Precision model?
I thought the table meant : H L L where L would be a resistor to ground not from 3.3 V?
I will see if I can find them on the board....

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openminded replied to Need bios Dell XPS 9500 LA-j191p

in BIOS Requests ONLY!

09-24-2024, 01:14 AM
Thank you! I did, unfortunately the same error 43 occurs. It looks like the chip itself is dead.
Got an update on UMA : [url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/3462370-can-anyone-help-with-enabling-uma-on-the-9500-xps-board-la-j191p?p=3467381#post3467381[/url] . Does anyone happen to have the boardview or have pictures of where those resistors are ? Thank you!https://Thank you! I did, unfortunat...t3467381[/url]...

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openminded replied to can anyone help with enabling UMA on the 9500 XPS board ( LA-J191P ) ?

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-24-2024, 01:13 AM
Thank you! Do you have the boardview ? Or a picture that shows where they are ?...

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openminded replied to can anyone help with enabling UMA on the 9500 XPS board ( LA-J191P ) ?

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-22-2024, 03:54 PM
I found the attached picture in the schematics that look promising on page 17.

I am looking help with the following:
- find where the RH564, RH566 and RH5857 are on the board
- understand what to precisely change to get UMA properly working ( resistor on/off, specific value etc )

Thank you...

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openminded replied to hp g62 help disable DSC vga

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-17-2024, 02:51 AM
https://[url]https://www.badcaps.net...lp, thank you![url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/3462370-can-anyone-help-with-enabling-uma-on-the-9500-xps-board-la-j191p[/url]

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openminded replied to Dell XPs 9500 UV31 dump request

in BIOS Requests ONLY!

09-16-2024, 06:02 PM
in the mean time I wrote the second link to the chip, placed it and the laptop went on and showed the card.
Just like before after a reboot the error 43 came up.
I tried to heat the ram chips and the actual dGPU chip without success - even with 2 RAM chips less it behaves the same.

It makes me wonder if the vbios is stored elsewhere too.
I am still happy to get a link to a 1650 Ti Mobile Bios from Dell from the XPS 9500. Thank you

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openminded replied to can anyone help with enabling UMA on the 9500 XPS board ( LA-J191P ) ?

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-16-2024, 05:59 PM
aha, I wondered what happened . There is a link to the schematic here :
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/91088-dell-xps-9500-la-j191p[/url]

I also noticed some jumpers that can disable the power to the dGPU but I am not sure if that will work as it should.
Any help is appreciated, thank you!https://aha, I wondered what happene...la-j191p[/url]

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openminded started a topic can anyone help with enabling UMA on the 9500 XPS board ( LA-J191P ) ?

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-16-2024, 07:44 AM
can anyone help with enabling UMA on the 9500 XPS board ( LA-J191P ) ?

in the mean time I wrote the second link to the chip, placed it and the laptop went on and showed the card.
Just like before after a reboot the error 43 came up.
I tried to heat the ram chips and the actual dGPU chiop without success - even with 2 RAM chips less it behaves the same.
Giving up on making it work, can anyone help with enabling UMA on the 9500 XPS board ( LA-J191P )?

I have never done this and been trying to understand it from the schematics, but for a beginner as I am it is hard to understand from that.
Page 15 has some info mentioning UMA and...

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openminded replied to Dell XPs 9500 UV31 dump request

in BIOS Requests ONLY!

09-14-2024, 03:34 AM
hi, is anyone able to help by making a vbios dump with gpu-z ? Dell XPS 9500, 10th gen 1650 and 1660 mobile.
I found a few links but I know there is also the XPS 9=7590 I believe that has such BIOS, does anyone know if those would be compatible?

I found : [url]https://www.techpowerup.com/vgabios/236825/236825[/url] ( 1660 ti mobile, 6gb )
and : [url]https://www.techpowerup.com/vgabios/261028/261028[/url]

If anyone can confirm these should work on the 9500 I would be very happy and dumps from your computers are still highly appreciated!
Thank youhi, is...

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openminded replied to Dell XPs 9500 UV31 dump request

in BIOS Requests ONLY!

09-06-2024, 12:22 AM
in case anyone is not aware, a VBios dumop can be made straight from Windows with for example GPU-z and even uploaded online. Unfortunately nobody did yet.

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openminded replied to Dell XPs 9500 UV31 dump request

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09-05-2024, 05:16 PM
hi, I'm afraid I do not have any. The bios chips are on the boards and seem fine, I cannot dump them without desoldering. I tried to make dumps from Windows but it never worked, the chip wasn´t properly detected.
At the moment when I tried to replace it, I thought it was the main BIOS chip and the one I tried to replace broke. The other is the one giving the 43 error.
I assumed the BIOS was bad because it wouldn´t store the service tag ( but as described above, changing the vbios seemed to have fixed it ).
It's a 6 GB 1650 or 1660 (Ti). If it's helpful I can try to solder of...

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openminded replied to Need bios Dell XPS 9500 LA-j191p

in BIOS Requests ONLY!

09-05-2024, 07:53 AM
do you have a dump of the VBIOS chip as well ?
UV31 is 25Q80EWIG saved file has size 1,024 kb
I requested it also here :
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/3340468-dell-xps-9500-uv31-dump-request[/url]

thank you!https://do you have a dump of the VB...-request[/url]...

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openminded replied to Dell XPs 9500 UV31 dump request

in BIOS Requests ONLY!

09-05-2024, 01:49 AM
Was anyone able to dump that chip? I might be able to make a dump of it with the 43 error but then I would have to solder it off again. I ordered new chips and have a programmer so it would be great if anyone has a dump. I have two boards that need it. It's very likely to fix the 43 error issue, which is what many people have reported ( and under warranty Dell would replace the motherboard )

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openminded replied to Help with Dell PFS extractor

in BIOS Requests ONLY!

09-03-2024, 03:54 PM
Thank you for the write up. I pretty much did that and Python never got added to PATH.
When trying to run from the dir, all kinds of dependencies didn't work, because Python couldn´t even finf standard libs.
Absolute Windows related garbage, since in the PATH variables, I did see the directories set properly - they just didn´t have any effect.
After losing many hours trying to solve that and getting sick and tired of it, I ran it once on Linux and it just works, despite the author writing about compile errors.
So for anyone having those PATH issues, or any other, I recommend...

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openminded replied to New Members - please post your introductions here

in Announcements & Related News

09-02-2024, 04:46 PM
hi, I am an open source software and hardware fan, repairing laptops, and trying to free all kinds of devices from proprietary software ( webcams, routers. phones ,etc ).
I have a lot to learn on the electronics part, hope to get wiser here!

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openminded replied to Dell XPs 9500 UV31 dump request

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08-31-2024, 11:13 AM
apologies, didn´t think it was needed for this problem, ST is 8GR5DB3 . Thank you!...

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openminded replied to Help with Dell PFS extractor

in BIOS Requests ONLY!

08-31-2024, 06:12 AM
impossible on windows, works on Ubuntu 24.04 LTS

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openminded started a topic Dell XPs 9500 UV31 dump request

in BIOS Requests ONLY!

08-30-2024, 07:29 PM
Dell XPs 9500 UV31 dump request

hi,

I have been trying to fix an issue with a Dell XPS 9500 board that has an infamous error 43, meaning the dGPU doesn´t start properly.
I think it's an 1650 or 1660 NVidia card.
In my infinite wisdom I thought I was replacing the BIOS chip ( one board wasn´t able to store the service tag ) but I saw now that it was the UV 31 chip I tried to replace not the actual BIOS UV 8.
I got on to that via : [url]https://***********/threads/xps-15-9500-la-j191p.41086/[/url]

The UV31 chip is mentioned there, I was unable to take it off in one piece from the working...

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