Question No signal on display, please help. Tried many fixes, is my CPU dead?

May 21, 2019
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Hello, I'll try and be as quick and inclusive as possible. I was playing Rocket League on med settings, when my PC stuttered, the graphics glitched and it shut down. Booted back up, worked fine, same thing happened next time I tried to play the game. I uninstalled the graphics driver and since that point, I've seen nothing but a black screen with 'no signal'. I just assumed a graphics card issue (asus hd6670 1GD5), so I bought a new one Asus Dual RX460-O2G. Still no signal, though I had to use a set of adapters from the cards hdmi output to my monitors VGA input, only then I tried the built in graphics, via VGA and still nothing. I figured - surely the PSU is just not giving enough power and had been making a loud noise for a while now. I upgraded from 420W tecnoware psu, to a 500W ATX- P4 psu. Still nothing. It must be the motherboard, so I got a new one of those too, changed from Msi B75MA-E33 to Gigabyte GA-H61M-S2PV, and still, any variation results in no signal, with either of the asus cards or the built in one. By this point, the only two things I haven't changed and cannot test, is my i5 3.2GHZ cpu from 2012 (sorry, i cannot get a model number, cause I've lost any manual and the cpu is under a heatsink, covered in nano grease) and my one 1600 mhz, 4GB Crucial Ballistix elite RAM module. The monitor itself OCTIGEN MA9KKA 19", works on my spare optiplex 760, sporting an Intel Dual core E7400 2.80GHZ, with a VGA connection to the built in graphics, but the entire display is tinted blue. It shows up no signal, if i try and put either of the graphics cards in the optiplex and get the display working through them, but that may be due to the Dell micro psu, pushing out the max of 235W. I know it seems like I've just gone on a spending spree, but this has been over a course of months, and i cannot afford to spend any more, I am genuinely at my wits end and need help from people way smarter than I.

EDIT: I've tried a CMOS reset on both of the motherboards, via taking out the battery, and keeping it out for an extended time period, but nothing changed, so I have no idea if it was done properly.

Edit: Beep error
No video card, GB motherboard - a long beep, followed by three short beeps.
No ram, no video card - rapid beeps
Video card and Ram installed - No beeps.

Update: The GB motherboard +1x ram +hdd +RX460 now gives me a post beep, every time i turn it on and it seems to just keep running, untill I shut it down. The newer, much better monitor, picked up a signal, through HDMI, plugged into the RX460, but the picutre was many, coloured shapes, like SMPT bars, but on drugs.. No post beep on any other variaton of setups.
 
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R_1

Judicious
Herald
see here step 17 any beeps from either motherboards speaker, not the rear audio the spkr port on the front panel connector next to the power switch connection?
boot each board with the basics only, CPU, RAM, GPU, keyboard, speaker and monitor only.
you can bodge a speaker from scrap if needed for troubleshooting
canned diagnostic speaker rant: diagnostic speaker making 101
The diagnostic speaker is the motherboards main diagnostic feedback device.
the motherboard may be telling you where the problem is.
my speakers have this plug
http://images.crutchfieldonline.com/graphics/infolib/homelib/hSpeakerSpringClip.jpg
I use lamp wire but any stranded wire will do. literally any stranded wires. strip one end like so
http://www.antiquelampco.com/Shades/CordColors.jpg
attach the stripped end into the speaker spring clips on the speaker.
the other end of the wire should be trimmed like so the semi strip
https://wesbellwireandcable.com/images/cutwire.png
by doing a semi strip the wire case is now the socket.
plug one wire to the first pin, and the second onto the fourth pin.
power on the system and listen for beeps
end canned rant
 
May 21, 2019
4
0
10
0
see here step 17 any beeps from either motherboards speaker, not the rear audio the spkr port on the front panel connector next to the power switch connection?
boot each board with the basics only, CPU, RAM, GPU, keyboard, speaker and monitor only.
you can bodge a speaker from scrap if needed for troubleshooting
canned diagnostic speaker rant: diagnostic speaker making 101
The diagnostic speaker is the motherboards main diagnostic feedback device.
the motherboard may be telling you where the problem is.
my speakers have this plug
http://images.crutchfieldonline.com/graphics/infolib/homelib/hSpeakerSpringClip.jpg
I use lamp wire but any stranded wire will do. literally any stranded wires. strip one end like so
http://www.antiquelampco.com/Shades/CordColors.jpg
attach the stripped end into the speaker spring clips on the speaker.
the other end of the wire should be trimmed like so the semi strip
https://wesbellwireandcable.com/images/cutwire.png
by doing a semi strip the wire case is now the socket.
plug one wire to the first pin, and the second onto the fourth pin.
power on the system and listen for beeps
end canned rant
Thank You for the reply. I do have a speaker and the messages are as follows:
No video card, GB motherboard - a long beep, followed by three short beeps.
No ram, no video card - rapid beeps
Video card and Ram installed - No beeps.
I only have one stick of ram and I do not hear a simple post beep on either motherboard. The MSI mobo only does rapid beeps when ram isn't installed and no beeps with or without a graphics card.

I will shortly be on my way to finally try every combination of mobo/gpu, with a different, more modern monitor, see if I get a picture.
 

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