again nothing! same logo hang...is there anything i can do to help? please find attached a bios file sent from badcaps user phuoctan (thanks for helping also) were the laptop got unlocked, semm removed, but the keyboard and touchpad did not work, maybe it would help somehow.
Thank you all for your time!...
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
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HP Omen 17-W202NV Error 90D
Hello.
I am facing an issue with this laptop HP Omen 17-W202NV with motherboard: DAG37DMBAD0 REV D G37D 915467-601 which has a weird symptom.
It turns on and shows at post, error 90D (overheating issue). It starts immediately fans at full speed. Then once it goes to login screen, it shows the logo for half second and it shuts off, and in the next boot it shows again 90D error.
If you stay in the BIOS menu it does not turn off. I also managed only 1 time to boot into Strelec WinPE temporary system to diagnose and it did not show the NVIDIA gpu in the HWInfo. Looks like...
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Unfortunately on the cpu side is 0ohm, measured with digital and analog multimeter. Also, I tried to voltage inject 1v with 5A limit on this coil and it gives out 1v 2.5A. The voltage does not drop. With this injection, CPU does not get hot. Is there any chance it is something else you believe?
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Dell Alienware 17 R3 - LA-C912P Motherboard repair - 7 Beeps
Hello.
I am having a disappointing motherboard repair with this laptop and I need your help.
This came in with water damage, doing absolutely nothing, and had almost all standby voltages shorted. I have already replaced all those shorted components:
-UE5 SIO KB9022QD - Programmed spare one, when replaced, 3.3v short got out
-PQ102 MDV1525URH
-U17 AOZ1331
-UE1 C8051F383-GQ
-PU800 SY8032ABC
-UI2 SY6288D20AAC
-PU508 RT6220AHGQUF 7P=
-PU100 TPS51225CRUKR
-PU300 TPS51212DSCR
Now, I get all the standby voltages, it turns...
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LENOVO YOGA 2 PRO - 1 Shorted RAM chip
Hello.
This laptop LENOVO YOGA 2 PRO was absolutely dead until we found a short to 1.35vsus line which turned out to be from 1 out of 8 total RAM onboard chips ELPIDA EDJ8416E6MB-GN-F (U15 on schematics).
When we desoldered the chip, the short got away, the laptop turns on and draws 0.5a for like 10 seconds, without image, and then turns off and this boot loop continues forever.
Do you know if this RAM chip must get replaced or it can work without it, just with less memory capacity? The motherboard is VIUU3 NM-A074 REV 1.0.
Or maybe there is a way to...
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Re: Dell Inspiron 15-3521, 5 Beep Code - No Picture
what do you mean exactly? the bios was flashed with external programmer ch341 and the cmos was out of the motherboard. the bios was put on the board again and it turned on but with this issue. the cmos battery, if it is on or off the board, it does not make any difference, it has same effect, some times it turns on or sometimes it does 5 beeps.
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Dell Inspiron 15-3521, 5 Beep Code - No Picture
Hello.
I have a problem with this laptop DELL INSPIRON 15-3521 (Motherboard VAW01 LA-9101P REV 1.0).
At first it came with 1 beep code continuously and no picture. I flashed the bios with programmer and it turned on but now some times, not always, it does not turn on and gives 5 beep code, which Dell states it is Real Time Clock Power Failure. The cmos battery is new. If it boots up correctly, it stays on and works perfectly.
Do we have any idea what it could be or where to start diagnosing? I have schematics and boardview.
Thank you.
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DELTA ADP-310AF 310W Mosfets
Hello. Does anybody know please which mosfets are in position Q1+Q3 of power board DELTA ADP-310AF 310W PSU? They are the primary mosfets connected to DAP015 driver. It's from iMac 2011 A1312.
They are blown and cannot find schematics or info...
Thank you.Last edited by tech_guru; 11-12-2021, 04:29 AM.
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Re: DELL INSPIRON 15-3567 (15341-1) not turning on
Thank you both for your answers!
U4005 is omitted.
What voltage should I expect on SIO_SLP_S4#, in order to figure out what voltage to inject? Shouldn't be high around 1.8-3v since it is EN signal of PU5151?
I noticed that when connecting to power I can measure a voltage around 0.3v for a millisecond like a fluctuation, it seems like it gets dropped.
I also tried lifting up the SIO_SLP_S4# "legs" of PU5151, PQ4415 and SIO chip to see if the signal gets high but nothing. ...
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Re: DELL INSPIRON 15-3567 (15341-1) not turning on
I only flashed BIOS (attached is the original bin it had and the one i tried after). i cannot flash EC (if you mean the SIO program) since i dont have a programmer for it. i only have SPI programmer at the moment.
If the EC program is corrupted it wouldn't even turn on without image or have crystal clock available?...Last edited by SMDFlea; 03-24-2021, 01:28 PM. Reason: Bios requests go here - https://www.badcaps.net/forum/forumdisplay.php?f=40
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DELL INSPIRON 15-3567 (15341-1) not turning on
Hello.
I have a DELL INSPIRON 15-3567 with motherboard VEGAS/TURIS SKL/KBL 15341-1 91N85 which is not turning on.
When connected to psu it draws 0.011A and led lights up for a second. When power button is pressed it goes to 0.027A for 15-20 seconds without led and goes to 0.011A again.
According to the power sequence of the schematics I test it OK until stage 3 where SIO_SLP_S4# needs to enter PU5151 (APL5930KAI) to get the 2D5V_S3, VCCST and so on. SIO_SLP_S4# gets grounded almost 24ohms straight when power is connected. If power is not connected, it goes to 42k....
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Re: P2808b0 smd ic
Hello everyone! i got a clevo W650SB in my hands that had a blown P2808b0 ic, although it was starting properly if you removed the cmos bat and plug the charger to turn on. the power button did not work from the beginning and it did not have 3.3v on.
so i did the trick with highpulse's steps (which by the way exactly the same saved me a couple of times in the past, thank you for that!!) and the power button immediately got 3.3v but does not power on again with the button (button is working, checked with multimeter). is there a chance the Super IO is faulty...
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