Hi to all, i don't know the real history of this board.
the technician who gave me this board says: "i don't know the history of this board, it not switch to 20v. i have changed ub300 and ub400, than i've discovered to have short on 5v andi i have changed u7650. still 5v not switching"
so under microscope i've found
- shorts on rb246,rb401,rb400
- u7650 (tps51980b) changed with (tps51980A)
- j6640 melted (maybe some one has reflowed or changed u3100 or u3200?)
so i've bouth another identical board anche...
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Badcaps Statistics
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Topics: 218,489
Posts: 1,449,857
Members: 553,990
Active Members: 24,165
Welcome to our newest member, shocknote.
Latest Topics
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by phantomEVOYesterday, 03:58 PM
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by jkucukovI'm trying to see if someone could help me with my Asus Zenbook 13 UX 333F with given symptoms that I've experience during a recent external short.
During last laptop charge, as I was moving the DC power supply, I caused the two leads (+ -) to touch. After that event the laptop stopped charging and pulling amps form the power supply. The only way the laptop will come on is with the power supply connected and the battery having some charge to it, battery drains immediately after short operation (it gets to Windows log in screen before it shuts off). The laptop would power on, show...02-05-2025, 09:27 PM -
by leszekpHi , I am looking TP point for KLMAG1ETD in MT58CU chassis TCL .I have not seen it in UFI pictures .Today, 05:41 AM
-
I need to get a bin/rom file from a Dell bios to modify, I have run into a PFS extractor in this forum. When i run the path it just says "Working... Done!" but no file is created.
I need to open it in UEFITool and exe or rcv file is not supported.
Model: Dell Optiplex 3090 SFF
Service Tag: DQKR0N3
Motherboard Model: Q470
Here is the link of the uefi/bios:
[url]https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=hcj6n&oscode=wt64a&productcode=optiplex-3090-sff[/url]I need to get a bin/rom file from a-
Channel: BIOS & Schematic Requests!
02-02-2025, 05:53 PM -
-
by bimoleHi,
A colleague gave me an apparently ill CORSAIR CX600.
He told me that he heard a banging noise, and smelt the magic smoke.
After tearing down the PSU, no burnt component, everything seems OK, but the PSU often refuses to stay ON. When shorting PS_ON to GND, the fan spins a bit a finally stops. No output voltages.
I tried to treat some apparently bad solder joins and finally it seems to work OK... on the 12V and 5V rails!
It's another story on the 3.3V rail...
I have some devices to test deeply PSUs (scope, AC source, electronic load)...Today, 04:49 AM -
by Ven[SIZE=14px][B][B][B]Dell Latitude 3510[/B] (Intel Core i7-10510U) CPU Overheating [/B][/B]
[B][B]Issue Description:[/B][/B][/SIZE][LIST=1][*][B]CPU Overheating to 100°C[/B][LIST][*]When I start the laptop from a cold state, it takes about a minute to reach temps around 80-90-100°C, and CPU thermal throttling triggers.[*]When the CPU fan is running at full speed (by disconnecting PWM and TACH cables), CPU temperature stays around 50-60°C.[*]However, when the fan is connected normally to the motherboard, it does not kick in at high temperatures.[*]I also noticed a few times that...2 PhotosYesterday, 03:57 PM -
Hi,
I'm owing a:
Lenovo 300e 2nd Gen Windows Version
Model : 81M9
S/N : R911S76T
MTM : 81M9S03300
Board : BM5860_V1.3A
Since i had a password reset and did a corrupted Bios Dump, the laptop after flashing it, doesn't have the right S/N and so on.
Is there a DMI Tool for this laptop so i can edit it manually, using the right system infos, and writing them to the bios file, any app, so i can do the things from the command prompt or a gui, please?
I'll be very grateful, and thank you!-
Channel: BIOS Requests ONLY!
Yesterday, 06:08 PM -
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Hello i need help unlocking admin password
Service tag 5L76QJ3...-
Channel: BIOS & Schematic Requests!
01-18-2025, 05:40 AM -
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by darkeye82Hello, need values for 3 marked components marked on photo near Audio jack. It's from Beelink S12 Pro...Today, 03:48 AM
-
by danon93xHi everyone,
Like in title in need working BIOS to System76 Gazelle (gaze14). It's a rebrand of CLEVO NH70RA
Maybe some can help me-
Channel: BIOS Requests ONLY!
Yesterday, 11:58 PM -
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by leszekpHi , I am looking TP point for KLMAG1ETD in MT58CU chassis TCL .I have not seen it in UFI pictures .Today, 05:41 AM
-
by bimoleHi,
A colleague gave me an apparently ill CORSAIR CX600.
He told me that he heard a banging noise, and smelt the magic smoke.
After tearing down the PSU, no burnt component, everything seems OK, but the PSU often refuses to stay ON. When shorting PS_ON to GND, the fan spins a bit a finally stops. No output voltages.
I tried to treat some apparently bad solder joins and finally it seems to work OK... on the 12V and 5V rails!
It's another story on the 3.3V rail...
I have some devices to test deeply PSUs (scope, AC source, electronic load)...Today, 04:49 AM -
by darkeye82Hello, need values for 3 marked components marked on photo near Audio jack. It's from Beelink S12 Pro...Today, 03:48 AM
-
by johnbetonHello,
I have this board in for repair, it came in not charging, not powering on. Found a short on a cap near the charger IC.
With the cap removed, the laptop charges and works, but seems to work very slow.
I have a second board with the exact same problem, and the exact same capacitor shorted. So I replaced the bad capacitor with the good second capacitor of the other board, and the laptop works fine now.
I'm trying to identify which type capacitor this is, so I can order new ones to fix the 2nd board too, and maybe some future incoming since this seems to be...Yesterday, 01:13 PM -
by Robin21Hallo,
I've replaced Intel CPU SRKH5 with burned PCH on the LA-L051P with SRKH4 (i7-11370H to i7-11375H) and now I see that this was the easy part.
Now I need to replace ME Region using this from the donor board - 15.0.47.2473 and need help from smarter people than me.
[ATTACH=JSON]{"alt":"Click image for larger version Name:\tMERegion1.jpg Views:\t0 Size:\t120.6 KB ID:\t3570528","data-align":"none","data-attachmentid":"3570528","data-size":"full","title":"MERegion1.jpg"}[/ATTACH]...Today, 03:22 AM -
by danon93xHi everyone,
Like in title in need working BIOS to System76 Gazelle (gaze14). It's a rebrand of CLEVO NH70RA
Maybe some can help me-
Channel: BIOS Requests ONLY!
Yesterday, 11:58 PM -
-
by PrabuthDell Vostro 15 3510 -- [SIZE=14px][U][B]gdm51 la-l242p rev 1.0 a00[/B][/U][/SIZE] [COLOR=#e74c3c]Need Schematic Please.[/COLOR]Dell Vostro 15 3510 -- [SIZE=14px][U][B]gdm51 la-l242p rev 1.0 a00[/B][/U][/SIZE] [COLOR=#e74c3c]Need Schematic Please.[/COLOR]Dell Vostro 15 3510 -- [SIZE=14px][U][B]gdm51 la-l242p rev 1.0 a00[/B][/U][/SIZE] [COLOR=#e74c3c]Need Schematic Please.[/COLOR]Dell Vostro 15 3510 -- [SIZE=14px][U][B]gdm51 la-l242p rev 1.0 a00[/B][/U][/SIZE] [COLOR=#e74c3c]Need Schematic Please.[/COLOR]
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Channel: Schematic Requests ONLY!
Today, 02:54 AM -
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by Tamo NekoHello everyone,
I'm working on an [B]Asus TUF Gaming H670-Pro[/B] motherboard and need help finding a firmware dump for the [B]MX25VB8035F[/B] (1MB) SPI flash chip.
[B][B]What Happened:[/B][/B]
I mistakenly removed and erased this [B]1MB[/B] chip, thinking it was part of the main BIOS.[LIST][*]I later found that the board has [B]two main BIOS chips (8MB + 16MB)[/B], which I have backups for.[*]My backup for the [B]MX25VB8035F[/B] chip is just an [B]empty 1MB segment filled with FFs[/B], meaning I have no valid data to restore.[/LIST][B][B]What I Need:[/B][/B][LIST][*]A...1 Photo-
Channel: BIOS & Schematic Requests!
Yesterday, 11:29 PM -
-
by phantomEVOHi to all, i don't know the real history of this board.
the technician who gave me this board says: "i don't know the history of this board, it not switch to 20v. i have changed ub300 and ub400, than i've discovered to have short on 5v andi i have changed u7650. still 5v not switching"
so under microscope i've found
- shorts on rb246,rb401,rb400
- u7650 (tps51980b) changed with (tps51980A)
- j6640 melted (maybe some one has reflowed or changed u3100 or u3200?)
so i've bouth another identical board anche...Yesterday, 03:58 PM -
by PwtzzTV runs normally but after 10-15 mins of watching. The TV gets less than a second of white screen (see 5 sec video) then it continues normally, just for it to do again after about 10-20 seconds over and over. If the menu is out it does it to the menu as well.
I check the boards for bulging capacitors but there's none, I reseated the cables as well.
Help is greatly appreciated.
Yesterday, 10:49 PM