Hi everyone,
I have been working on a no power issue with my personal ASUS gaming laptop. It went dead a few months ago.
Some history:
Since then, I've found a blown mosfet on the GPU line which I replaced. It started up without a battery, then when I added the battery back it wouldn't start up again.
As a result, there were some blown components around the BQ chip. (The BQ chip itself - BQ24780S, the low side battery mosfet (shorted), and a resistor -> all replaced)
Now, with a new battery the system will start up and run off...
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-
Today, 09:40 AM
-
-
[FONT=Calibri]Hi,
If possible.[/FONT]
[FONT=Calibri]Need, Asus UX481FLY Rev 3 Schematic & Boardview and Bios file.[/FONT]
[FONT=Calibri]Thanks to All.[/FONT]
[FONT=Calibri]Hi,
If possible.[/FONT]
[FONT=Calibri]Need, Asus UX481FLY Rev 3 Schematic & Boardview and Bios file.[/FONT]
[FONT=Calibri]Thanks to All.[/FONT]
[FONT=Calibri]Hi,
If possible.[/FONT]
[FONT=Calibri]Need, Asus UX481FLY Rev 3 Schematic & Boardview and Bios file.[/FONT]
[FONT=Calibri]Thanks to All.[/FONT]
[FONT=Calibri]Hi,
If possible.[/FONT]Today, 10:05 AM -
Hey guys, I have a Lenovo Ideapad 320-15ikb NM-B241 rev:1.0.
After turning it on, it runs for a few seconds then shuts off completely. No screen, no fan. After shutdown, a red light comes on and off fast. I've been trying to troubleshoot this for days now. It's never been opened up; the Lenovo sticker is still intact.
(!)I tried with a different BIOS battery, without any ribbon cables, on battery power, without the keyboard, and it's always the same.
Any insights on what might be causing this?...Today, 03:05 AM -
Hi everyone!
I have this board that suddenly stopped supplying power to an output that drives an interchanger cleaner motor.
I checked while the board was in place with all wires attached and there's no AC voltage on the corresponding plug X5
This X5 is driven by fuse F8 (tested OK) which comes from the second orange relay
To make sure there are no charcoaled contacts inside the relay, I got a 24VDC power supply and got it ready to manually power up the coil side of these relays.
I respected the polarity, positive to cathode of protecting diode
So provided all...04-18-2024, 01:15 PM -
Hello, gentlmen!!!
My HP Probook 430 g2 does not detect battery. I tested the battery on another laptop and it is OK.
I believe smth is wrong with my PC ((.
Searching this forum I found some nice suggestions.
So, I tested Battery Connector pins (charger in/battery out) and here are my results:
pin_1 0v (-)
pin_2 3.30v
pin_3 0v
pin_4 3.38v (SCL)
[B]pin_5 2.55v (SDA)!!![/B]
pin_6 2.25 (+)
As far as I understand SDA pin must be ~3.3v???
Are there any other tests I can do before disassembling motherboard?
I...05-11-2024, 05:22 AM -
Hi guys,
hope its okay if I post this here.
I have a Dell laptop and it currently has a bios password which we dont have. Anyone know how i could go about it? Here is the details:
Dell Latitude 5510
Board number: FDW50 LA-J381P Rev 1
Service Tag: 2K67C93
I cant upload the bios file because its saying it is not allowed when i select upload.
Appreciate your help.Today, 04:33 AM -
Hi All,
Thanks for reading. Based on the interesting fact that the vertical lines issue don't seem to effect the menus whatsoever but rather everything around the menu regardless of video is shown, I'm trying to set mine whether the issue is the main board or the t-con board.
Again what's baffling is that the menu is not effected whatsoever. However, any other video displayed regardless of inputs or when no inputs exist exhibits the vertical lines and seem to effect black areas only.
The lines are green in color when the tv is in "Game Mode" and...Yesterday, 10:52 AM -
As for the title.. please help.. Much thanks..!Today, 07:36 AM
-
-
Hey guys, I have a Lenovo Ideapad 320-15ikb NM-B241 rev:1.0.
After turning it on, it runs for a few seconds then shuts off completely. No screen, no fan. After shutdown, a red light comes on and off fast. I've been trying to troubleshoot this for days now. It's never been opened up; the Lenovo sticker is still intact.
(!)I tried with a different BIOS battery, without any ribbon cables, on battery power, without the keyboard, and it's always the same.
Any insights on what might be causing this?...Today, 03:05 AM -
Hi guys,
hope its okay if I post this here.
I have a Dell laptop and it currently has a bios password which we dont have. Anyone know how i could go about it? Here is the details:
Dell Latitude 5510
Board number: FDW50 LA-J381P Rev 1
Service Tag: 2K67C93
I cant upload the bios file because its saying it is not allowed when i select upload.
Appreciate your help.Today, 04:33 AM -
Hi all
I have a firmware blocked iMac, I have replacing with all FF after $svs but it keeps coming up with the password again
S/N C02K3W2JDNCR
EMC 2544
Any help would be appreciated, I have attached the original
Thank you...Today, 05:28 AM -
Need bios fujisu lifebook CH55/j
SN: FMVC55JW
every body can help?
thanks!...Today, 05:19 AM -
Hi everyone,
I have been working on a no power issue with my personal ASUS gaming laptop. It went dead a few months ago.
Some history:
Since then, I've found a blown mosfet on the GPU line which I replaced. It started up without a battery, then when I added the battery back it wouldn't start up again.
As a result, there were some blown components around the BQ chip. (The BQ chip itself - BQ24780S, the low side battery mosfet (shorted), and a resistor -> all replaced)
Now, with a new battery the system will start up and run off...Today, 09:40 AM -
Hello, gentlmen!!!
My HP Probook 430 g2 does not detect battery. I tested the battery on another laptop and it is OK.
I believe smth is wrong with my PC ((.
Searching this forum I found some nice suggestions.
So, I tested Battery Connector pins (charger in/battery out) and here are my results:
pin_1 0v (-)
pin_2 3.30v
pin_3 0v
pin_4 3.38v (SCL)
[B]pin_5 2.55v (SDA)!!![/B]
pin_6 2.25 (+)
As far as I understand SDA pin must be ~3.3v???
Are there any other tests I can do before disassembling motherboard?
I...05-11-2024, 05:22 AM -
As for the title.. please help.. Much thanks..!Today, 07:36 AM
-
Hello guys
Because the unit is old (but only occasionally used) the loudness button causes some noise due to bad contact,
sprays did not work, so i decided to solder the pins that it connects on the pcb at the on (loudness on) position
i did that and it worked fine, i know from the bottom of my heart that the switch connects 2 pins and also d/c other 2 pins
on every position it have (6 pin switch), so i was curious what would happen if i clicked the switch off while the pins are soldered at on (so basiclly on and off at the same time), when i did so the sound is gone, nothing...05-05-2024, 06:20 AM -
Acer a315-54-588RCPU: SRFFX EH7LW la-h792p rev:1A bios need
Thanks all.Yesterday, 11:47 PM