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HP EliteBook 840 G1 - memory and MB problem?
Hello, can I ask for help with my problem? I have an HP EliteBook 840 G1 laptop and I have this problem - when I turn on the laptop, it usually starts up to 5-6 times ... the keyboard, power button, LEDs always light up, the fan spins and after 1 second the laptop turns off. After several attempts, the laptop turns on and starts to start, but then CapsLock and NumLock start flashing - 3 times and the fan spins at full speed. According to the manual, this is a RAM error - but I have already tried about 10 working modules and always the same error. Has anyone solved a similar or the same problem?... -
Lenovo Legion 5 Pro 16ACH6H Water Damage
Hello!
Today i received a Legion 5 pro with motherboard NM-D562 that suffered water damage, no power at all, no led, no fans, nothing.
I measure 20v on PQ5401 at pins 5, 6, 7 and 8 but 0v at 1, 2, 3 and 4.
Is this normal?
Thanks in advance!
Schematics and boardview-> https://www.badcaps.net/forum/troubl...95#post3254995...Last edited by Andreasbest; Today, 01:25 AM. -
Hp Elitedesk 705 G5 BIOS Unlock
Kindly help unlock bios password on
Hp Elitedesk 705 G5
Serial #: MXL0472Q59... -
Acer A715-43G black screen
I've been tinkering on Acer A715-43g that had boot issues. Voltage rails are present and keyboard LED lights turns on when power is pressed, but black screen and will not continue to BIOS, I also tried connecting to external diaplay and no activity either. I need to do power cycle at least 10 times to boot the laptop and OS will load. I already changed RAM, CMOS battery and SSD. Can you suggest something I need to look or test next? -
Dell Optiplex 7010, I need help finding a replacement for the L115 IC
Hello, I hope you are doing well,
I have a Dell Optiplex 7010, board number: OGXM1W.
Everything works fine, but there is no processor voltage. After looking it up, I've found that the L115 IC takes 12V, but there is no output on any of its pins. I searched online and couldn't find it either. I have old computer motherboards with the same IC but with different numbers and locations. Can I replace it with any IC or not? If not, is there another solution?
Thank you....1 Photo -
Samsung TV UN60KU6270F power supply
Trying to learn electronics repair as a hobby. I have no formal training in electronics, circuits, etc. Everything I know, which isn't much, has been learned from watching youtube videos, reading books, forums, etc. This means, sometimes I have a hard time understanding and interpreting what's important when I look at datasheets, and such.
My brother has a TV that I'm working on now. He said he was watching it, he heard a loud pop and it went off. I used my DMM to check the fuse, it was blown. From watching lots of hours of electronics repairs on youtube, I figured that was just a... -
Thinkpad X1 Carbon 5th Generation DX120 NM-B141
Hello!
I'm looking for help with Thinkpad X1 Carbon 5th Generation DX120 NM-B141:
- no image
- fans spins for second or two (not sure why once it is second and once its two or smth)
- keyboard and power button lights for split second
Not sure about SN because sticker got worn after time.
Any help would be appreciated!...
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