need schematic for this unis pls post
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I have a card that does post at all, the owner said it does go into windows but it gets stuck on the logo with artifacts, I have no idea if he is lying or not... I tried the card on my pc and it does not post at, no beeps, no bios nothing just all fans turning and nothing else. I tried plugging DVI or hdmi but nothing, I tried unplugging the 8 pin plug from the power supply and it's the same thing.
I just want it to post and get into the bios at least.
Forgive me if I am wrong, but I tested the 3 PCIe 12v power pins on the left(550ohm) and the 4th one from the right 3.3v (400ohm),... -
Ii wonder if anyone can help me. I have a Acer x163w monitor which is not powering up. The PSU main capacitor's one leg had completly come off - I replaced it but the PSU is still not outputting DC. I found the monitor in questions service manual here on manuals lib but the schematic in there is a completely different - the schematic shows no mosfet to drive the transformer while the one I have does use a mosfet - also the schematic shows only one optocoupler but mine has two.
The PSU board is labelled FM-20A02-AAA made by APD as per the image below. I am trying to find a schematic for this... -
Hi,
I try to repair an old Intergraph TDZ 2000 from 1998. It is a dual Pentum II machine based on Intel 440LX chipset. There is a non-removable bios chip named PhoenixBios B1787840. I cannot see any physical damage to the board. All caps look OK.
It shows no picture and POST stops with code 2F/2E regardless whether or not any graphic card is plugged in. If memory is removed, it stops on previous code 28/17 and stars beeping. I tested both CPUs in another machine and I also use RAM from another machine.
When I recorded video of POST card and played it in slow... -
Hi, been banging my head two days with a UX461UA Zenbook Asus that will not post. Laptop looks ok, all voltages looks nominal, CPU gets hot, even fan kicks in when it gets hot, I removed the m2 drive and tried several things, I thought it was a bios issue, I even registered here to try flashing with some BIOSes but the problem still was the same, no POST
At last I decided to check the disk drive to see if any backup can be done and then I realized that the disk drive was broken, I thought what are the odds that the motherboard and the drive at the same time? So I just plug another...09-05-2024, 02:18 AM -
Hello, I have an issue with the motherboard. Specifically, it doesn't power on, more precisely, the POST initialization doesn't occur.
Let me start from the beginning, the motherboard suddenly stopped working one day. There are no beep signals from the speaker, and the debug LEDs are not lighting up. After inspecting it under a microscope and using thermal imaging, I didn't find anything that could be damaged.
After that, I began voltage measurements, in which I noticed the absence of VDDQ, VDDP, VTT, and VPP lines. Later, I checked if there is an EN state on these lines,...
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