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Re: Asus vg248qe purple light problem
0.4 Ohm is a short circuit, unsolder these two capacitors, which I soldered to the board and re-measure the resistance on the left chokeComment
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Re: Asus vg248qe purple light problem
Voltage between GND
L406 has 1.23v and 1.21v
L407 has 0.21v and 0.29v
Resistance
L406 has 300ohm and 300ohm
L407 has 1ohm and 1ohm
Removed the two caps and measured
L406 has 137ohm and 137ohm
L407 has 1ohm and 1ohm
L406 has 0.94v and 1.2v
L407 has 0.08v and 0.2vLast edited by Rennokas; 04-18-2021, 03:13 AM.Comment
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Re: Asus vg248qe purple light problem
On the L407 - 1 Om, this is very small (short circuit) on this bus, there are two options, either the U402 MP2125 microcircuit itself burned out or something that sits on this bus ceramic capacitors ...
It is necessary to unsolder the choke L407 and check the resistance at both points relative to ground.Comment
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Re: Asus vg248qe purple light problem
Took off L407 and resistance relative to ground from upper choke 0.3 ohm and bottom choke has 220 ohmComment
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Re: Asus vg248qe purple light problem
Not easy to get the MP2125 ( https://www.monolithicpower.com/en/mp2125.html )
Any alternative which would fit?Comment
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Re: Asus vg248qe purple light problem
hi gentlemen, I can't open a new post because I'm new. I have my asus vw246h that to make it turn on I always have to unplug. I changed all the electrolytics on the power supply board but nothing.Comment
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Hello,
I have an Asus VG248QE that all suddenly stopped working. Everything was fine, I had my PC connected to the HDMI port and never had any issues. Then I decided to plug a laptop in the DisplayPort (USB-C to DP cable). It worked fine for a few hours, I left, at some point the monitor went to sleep mode and when I came back and moved the mouse monitor didn't wake up. The power button lights up in blue when the signal is good and amber when in sleep mode / no signal turned purple (first time I saw that). Did some research but couldn't find a way to bring my monitor back to life.... -
Full name/ Model: Asus Zephyrus M16 / GU603ZW-M16.I93070T
CPU: Core i9-12900H
Onboard 8GB DDR5 4xMT60B1G16HC-48B:A
Problem: This laptop was brought to the shop with the board already meddled with. Last technician (maybe without the right tools) removed an electrolytic capacitor (PCE9203) sensing resistor (PRS9801) and probably flashed both BIOS (U2802) and VBIOS(U7802).
The laptop's behavior is: When connected, it tries to power up. CPU powers on, and (allegedly) the power sequence finishes and goes to S0 (PLT_RST = 3.3V). It consumes 600mA, ramps up to 1.100 A and... -
Hello,
I have a problem with the bios, let me explain.
With BIOS 1, the pc takes +- 30 seconds to display the ASUS logo (black screen) and to boot.
I did a clear ME, my black screen problem for 30 seconds at boot is solved, it gives me directly the display and boots quickly.
My problem is that now, once the charger is plugged in and I put a slight load on the processor, it bogs down to 0.39GHz...
The only solution is to unplug the charger to get the cpu back up to speed. But as soon as I plug in the charger, it goes straight back down.... -
Hi. I bought a damaged Asus motherboard, model dabkxmb18b0 rev.b. The problem with the motherboard was a faulty processor.
I replaced the processor, but it arrived without a BIOS chip. I found one post on the forum, but my problem is
I don't know which chip to program, and I don't have a schematic. Does anyone know which BIOS chip models are compatible with this motherboard? If so, please let me know. Thanks. -
Hello everyone,
I’m trying to recover an ASUS TUF Gaming A17 FA707NUR (Ryzen + RTX 4050, 2023 model).
The laptop powers on, fans spin, but the dGPU (NVIDIA) is not properly initialized — sometimes it shows up in Device Manager with Code 43, sometimes black screen.
After several BIOS downgrades/upgrades (versions 300, 301, 303) and EC resets, it thinking looks like the EC firmware (IT5570VG-256) might have a persistent fault or flag stored in flash.
I already extracted the BIOS .CAP files and DXE sections with UEFITool and IFRExtractor, but I couldn’t find...
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