Windows 10: No Signal Screen and VGA White led on Motherboard

Hello, I'm tired of trying to solve this problem, which I haven't been able to fix for two weeks now. Please I need some help to solve it or some advice because I honestly don't know what else to do.first of all I give you my specs: i7 13700k64gb ram T Force white edition ddr4 3200hz 4 slotsROG STRIX B660-A GAMING WIFI D4 rtx 4070ti msi gaming x trio1 tb HDD solid disk1 tb HDD solid disk 2500gb nvme m.2 WD black windows installed500gb SSD diskNHD15 air coolingPSU Straight power 11 Be QuietMonitor LG ultragear 32" 165hz 1ms DisplayPort 1.4The problem started two weeks ago, until then I h

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Boot failure, stops with VGA LED lit

Recently rebuilt my system with new:
ASUS Z170-A motherboard
i5 6600-K
16Mb Ram
and 1 year old (previously faultess) graphics card MSI GeForce GTX 970
and 850W PSU from my old system.

Has been running fine for last 2 weeks since first built - not been overclocked.
Switched on this morning. Screen locked at Win 10 login.
System then, without prompting, restarted several times (4 maybe 5 times) each slightly different with BSOD messages saying windows needs to repair. Never saw Win 10 logon screen again. System eventually hangs with a blank system (ie no signal to monitor).
This Motherboard has component testing indicator LEDS which illuminate and then go out when each component passes POST.
During POST, CPU and RAM test ok but system hangs with VGA LED on.

Removed garphics card and connected monitor to on-board DIV socket. No difference, system still hangs during at VGA LED.
Cleared CMOS with jumper, No difference.

I think my new motherboard has just had a terminal failure.*Eek
Anything else I can check ?

 

VGA output signal

I am using Netbook HP Mini 110 and used to connect to my tv via VGA output. This was working well during Windows 7. However, after Windows 10 installed, my tv monitor say 'Signal Not Compatible'.

I also have Netbook HP Mini 210. This netbook perfectly displayed into the same tv monitor.

So, I compared the video driver on both netbook and both netbook is using the same type of driver.

Can anybody give suggestion on the VGA signal issue?

 

VGA signal

I replied it on my first question. Its a new monitor my other 1 I dropped an broke it. It had HDMI built in this new 1 does not have HDMI built in It has a cable that connects to the monitor to my desktop PC. I do not have a port for a HDMI cable on the
back of my desktop PC...I'm getting error messages that the VGA signal is having a problem..