Random connection loss for monitor and peripheral

Really interesting.

Please try the DOS re-flash method for UEFI. Pick some non-latest version. EDIT: or just test your luck with the latest one. After re-flashing, clear CMOS to defaults.

Then, go to https://www.microsoft.com/software-download/windows10, download the tool and bake a fresh install of Win 10.

If your PC had Win 10 and an Internet connection before, no matter OEM or retail (or pretty much whatever) version you had, its license will be picked up automatically every time Win 10 is installed anew.

If after all this you have no issues you can try and mess with different UEFI settings if you like.

Fingers crossed you'll be OK.



Edited by zlobster - 15 Dec 2017 at 3:34am

Thank you for the reply, Zlobster :D !

Edited by Nirmelraj - 15 Dec 2017 at 10:30am

Nirmelraj wrote: Greetings, I just finished building my first pc. Specs are :  Ryzen 1600 cpu Asrock ab350m pro4 mobo 16gb kingston hyperx ddr4 2400mhz ram 1tb hdd 120gb ssd corsair cx650m psu I was facing some problems with the pc. When I turn the pc on, the monitor, keyboard and mouse loses connection. Sometimes it happens as soon as windows fully loads and sometimes it occurs 10-20 minutes later during normal usage. So I googled for some solutions and the top recommendation was to either replace the psu and try the CMOS battery removal/ reset thing. Well I replaced the psu with another new one, albeit, same brand. The issue persisted so I'm pretty sure its not the psu. Then I tried the CMOS solution (based on the last few minutes of the asrock classroom video about the x370 taichi motherboard) recently and this helped me out quite a lot with the issue. However, it now occurs much later, like about 3-5 hours into usage. It's an improvement, but I really want this problem to be solved. Additional info: I even took it to a pc repair shop. The technician tested my components and said that the problem was most like caused by the Windows 10 home trial i installed, as the pc worked fine for an entire day when he installed his own drive containing a full copy for windows. Though I'm not sure if I could trust what he says...  Please help :(

Nirmelraj wrote: Well,  1. The case fans, cpu fans and gpu fans are still spinning when the problem occurs. 2. The technician from the pc repair shop said that the pc is still running and it was not frozen. How he determined that, I have no clue. Also, I can confirm that the monitor, keyboard and mouse work just fine, because i tested them on my laptop and console.

First, there is no such version of Windows 10 called "Home Trial". Any version of Windows (Home, Pro, Education, etc) can be installed on a trial basis of 30 days. Then you must purchase a license key to activate your installation. After 30 days, without activation certain Windows features begin to stop working, but the monitor, mouse, and keyboard will not loose their connections.

So the repair shop telling you it was the "trial version" itself causing the problem is just false. The Windows installation the shop used for testing no doubt had the correct drivers installed, which may be why they did not have a problem

You did not include your video card in your list of hardware, what are you using? No signal from the video card does not normally happen if Windows freezes. That could be a problem with the video card, or the card is not seated in its slot correctly, with its locking tab closed. You should be using the top PCIe 3.0 x16 slot. Anytime you lose the video signal, the video card or the power to the video card are the main suspects for the issue. Windows problems do not cause the video signal to suddenly disappear.

How do you know if the mouse and keyboard do not work if you cannot see anything on the monitor?

How did you install the basic drivers and software for your board and other hardware? Did you configure Windows to install all the drivers (default) or do you have control over driver installation? I've seen video problems only when Windows 10 kept installing video card drivers.

Did you change any of the UEFI/BIOS options from their default values?

Clearing the UEFI/CMOS does not fix any hardware or driver issues. If you have not changed any hardware other than the PSU, then it is a coincidence that clearing the CMOS improved the PC's operation.

What are you using as a CPU cooler? Have you run any monitoring program to check the temperatures of the various components like the CPU and video card? To check for over heating issues?

The PC case and number of cooling fans and their configuration is another factor. What PC case are you using and how many fans does it have?

When the mouse or keyboard seems to no longer work, did you try unplugging them, and connecting them again while the PC is running? That is, if you had a signal on the monitor.

When we build a PC, we are responsible for setting it up correctly and configuring it for proper operation. Building a PC is not simply putting the parts together like a model car, and you chose a more difficult system for the first time builder. So you are now training yourself in building a PC, and if you have no experience in that you have a fair amount to learn.

I feel you, man! First time building your very own PC and BAM - now you're learning IT. It has its upsides, though. Just don't make general conclusions about AMD. I've been building AMD rigs since the K6 era. Your Ryzen 1600 is a very good choice.

When you start Device Manager, do you have any yellow exclamation marks?

If possible, try and re-run the AMD chipset driver, but this time choose 'Custom' without actually installing anything. This should bring you a list of the already installed AMD drivers. Seems like some USB filer driver is messing with you. Or IDK, it may be the Moon phases.

Which UEFI version you have now?