Managed to find the schematic on vinafix despite there only being BIOS on their yesterday 🤷‍♂️.Still can't find the boardview though.
Something screwy is going on. Yesterday arvo when I first took a look at this the TPS was getting hot so I started to look around for some info on it. Came in this morning found and printed out that page of the schematic and wrote resistance measurements for all the pins for the TPS. Pin 15 which is the LDO was 1.5M. All the pins read normal, so I connected the charger went over it with the thermal camera and the ISL charge IC was getting warm...
Announcement
Collapse
No announcement yet.
User Profile
Collapse
-
Latitude 5521 - broadmoor 15 TGL-H 12L 5v 600ma can anyone identify this chip?
Hi all,
got a latitude off of a old colleague which is stuck at 5v and not turning on no signs of life.
ive done some digging and it seems like pu4501 (5193 ti 1a8 adgh is the chip markings) is shorted. Getting up to around 74c. Haven't removed it yet because i haven't been able to confirm what chip it is.
Googling the markings brought up only one result, tps 51396 but the markings are 51393 so I'm assuming it's a tps51393 but googling that it seems like the chip engravings are different to the one I have so I wanted to confirm whether my assumption was right...Last edited by AJ847.63e; 07-02-2024, 06:46 PM.
-
For those interested it looks like Apple are not the only ones paring screens to boards. I dug up the service manual for this laptop and it notes if you need to change the assembly you will need to recalibrate the touch screen for it to work please see service note xxx which I assume you’d have in your service dashboard if your an authorised repairer.
i contacted HP pointed them to this and the rep suddenly got very defensive and insisted no this is not correct you must’ve bought the wrong screen. After convincing him the screen is original he agreed to get it sent in and replaced...
Leave a comment:
-
Dam thought as much, thank you for the confirmation. I'm just going to order a new board, by the time I order the chips and pop em on costs going to be very similar and way too high a chance of floating the CPU or the new RAM not even solving the problem....
Leave a comment:
-
If I remove a chip should the system still POST or is the UEFI smart enough to know how much RAM it has and halts the process? I didn't have the guts to heat individually each chip (plus I don't have any small enough nozzles to di a individual chip, there all too big). So I checked which RAM was running the hottest and the middle 2 on the bottom row were at 69 where the rest were in the low 50s.
I removed one of the middle two on the bottom row and now the board turns on but black screen fans are running at low speed and the boards only drawing .587A and is constant so it seems like its...
Leave a comment:
-
Thanks for the confirmation. 🤦‍♂️Just noticed the HP test kinda tells you which memory chip. Says memory module 2 bottom, I assume that means second memory module on the bottom row. I'll try the heat test and see if that confirms it.
If it does I'm tossing up whether I should risk replacing the RAM or just get a new board especially when new boards are 300 or so on ali express and the ram is about 25 bucks a chip plus shipping.
Not to mention the RAM is directly under the CPU so I'm worried about floating it.
Leave a comment:
-
8th gen 13" HP Spectre X360 - Is there a MODS like utility to determine which chip is faulty?
Hi All,
We've got a 8th gen 13" Spectre X360 which seems to have faulty onboard memory. Windows was bluescreening with Memory_management errors. Running HPs built in memory test brings up memory errors, but it does not tell you which chip. Is there a MODS like program so you can determine this? Memory is on board unfortunately and don't really want to go order 8 chips and replace all 8 if I don't have to.
Lastly do you have to use the exact same chips, or can you use chips with the same specs but from other manufactures?
Thanks for your assistance....
-
Leave a comment:
-
Thanks for the link, I did see that earlier but didn't try it because it's for the intel NUC. I'm used to drivers refusing to install if your not running them on that exact device.
Just tried it now and yup doesn't work. gives a platform unsupported error. Even tried it through device manager. Auto says there already there, as does manual. If you go in and select the folder manually tt finally tries to install finds the drivers but errors out with the same code 10 error code....
Leave a comment:
-
HP Envy X360 13-bf0073TU (6X0Q8PA) Touch Screen Compatibility. Screen P/N N15665-001 - BOE NV133WUM-A65
Hi All,
We've got a HP Envy 12th gen that has been dropped and the LCD panel itself has cracked. The glass is fine just the panel itself is cracked. We ordered a replacement screen assembly using the part number off the HP part surfer website.
Upon installation the touch screen now does not work either in UEFI or win 11. Device manager under the "intel Precise touch and Stylus) menu notes "This device cannot start (code 10) Status_Device_Power_Failure".
I've tried all the usual troubleshooting steps like reinstalling the driver, uninstalling...
-
Thank you everyone for the info. I'm going to push my luck take it to the Apple store and get them to do a warranty job. Not worth the comeback risk, let alone the worry of did I get a original screen or not. Just because the supplier says it's "OEM Pull" doesn't make it true, learned that the hard way....
Leave a comment:
-
A2338 Screen replacement - Clarification needed. What do you actually loose when replacing the screen with OEM Pulls?
Hi All,
Just wanted to get some clarification on replacing screens on M series machines (M1,M2,M3,M1pro,M2pro,M3pro) as there is so much conflicting information out there. Some say even when using OEM pulls you lose True Tone and only that, others say you lose that and webcam, others say you lose those two and also the lid sensor will not work, others say you lose nothing as long as you use OEM pulls.
So, which one is it actually? Using original OEM pulls. That seems to be what has caused the confusion, people using cheap aftermarket than being surprised when it does not work...
-
Ok thanks. The 3v3 and 5V rail were up when I took the board out so hopefully nothings else has been damaged in the process of the inductors going nuclear. Both inductors have been replaced along with the cap so this should be good to go.
Thanks again for your assistance....
Leave a comment:
-
Thanks for the info. Removed both PL1600 & 1602 and found the second pin was shorted (pin closer to the RAM slot, apologies don't have the schematic, so I don't know whether it's pin 1 or 2).
Turns out the cap I thought was shorted was indeed shorted. The big MLCC that is directly on the other side of the board through the 6 vias next to the two burned inductors. Removed that cap and what do you know she's working!
Curious to know, what is that line for? Just want to try get a understanding of what happened and what caused it, and more importantly what could of...
Leave a comment:
-
Dell XPS 9510 LA-K411P Liquid damaged
Hi All,
Just wanted to get some advice on a XPS 9510 we have. Unit suddenly decided it no longer wants to turn on. Sometimes pressing the power button, it sits on keyboard lights no picture and boot loops a few times before shutting down. Other times it completely ignores the power button and does nothing. There is no light at the front of the laptop.
We are getting 20V on all 3 ports so the USB C PD communications working fine. We are getting 12V,3V3 and 5v so it seems like an issue quite late in the power sequence.
Removed the board and found dust corrosion...
-
LA-K411P / Dell XPS 9510 schematic Availability?
Hi All,
Does anyone have the schematic for the LA-K411P? The usual sources like Vina and such do not have it, they have the BIOS but not the boardview and schematic. I did find the LA-H331P (which apparently is also for the XPS 9510?) but that seems totally different. That notes a CometLake CPU which AFAIK is 10th gen where my board is 11th gen TigerLake....
-
Does anyone know whether the Surface Book 1/2 G3HTA044H is compatible with the Surface Book 3?
Hi All,
Title says it all. We've got two Surface Book 3 model 1900 that require battery replacements for both the screen and the keyboard base. The battery that came out of those tablets, which definitely are the originals, is[COLOR=#00b1d7][B]G3HTA044H.[/B][/COLOR]
Though when I search for that model number every single listing has that listed as a surface book 1/2 tablet battery. And their batteries look physically different, they have two stacked vertically holes on both side of the battery pinout which mine does not have. Ifixit also states the surface book 3 uses...
-
Re: What technologies are required for modern motherboards (6thgen - current) to post
Yeah, bios flashback comes in clutch especially when you don't even need a CPU. That got me out of a bind when my Z490 Aorus Master wouldn't boot with my 9900KF, turns out F SKU support wasn't added till the third BIOS revision, and I was on the launch bios. Pretty cool you can update the BIOS even without a supported CPU. That's why I only buy ASUS boards now, there the only ones who put the bios revision installed on the board onto the box. MSI, gigabyte, asrock, no one else does it' so your...
Leave a comment:
-
What technologies are required for modern motherboards (6thgen - current) to post?
Hi All,
Need a bit of assistance digging up some information on current technology support required for modern motherboards to post? By modern let's say 6th gen skylake to current intel and all of the Ryzen series. You would think this would be on the ARK product page, but nope. Besides saying dedicated graphics required it doesn't really tell you squat.
Reason I ask is I've ran into this a few times now (first on 6th gen SkyLake and now on 12th gen AlderLake) where if I use an intel F SKU CPU multiple different boards refuse to post with multiple different graphics...
-
Re: Need some recommendations for windows cloning.
Thanks for the advice and explanations.
Most of the time we've been lucky/early enough that the SMART errors were just superficial, and cloning has been successful through AOMEI so it hasn't gotten to the point where data recovery is needed. A HP pavilion we got in recently for example, the boot screen it was stuck on noted SMART errors and it couldn't boot. If you dismissed that screen you ended up in the windows recovery screen.
Luckily the HP repair partition was still intact, so it was able to repair...Last edited by AJ847.63e; 11-02-2023, 07:50 PM.
Leave a comment:
No activity results to display
Show More
Leave a comment: