Question My PC turns on and spins all the fans, but monitor is showing no signal!

Apr 3, 2020
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Hello! I just bought a PC and i connected it to the monitor and it was showing "no signal". What could be some tip i could do or try to fix this. And i'm trying to message the seller to get it back but it looks like it won't happen.
 

Ralston18

Titan
Moderator
Update your post to include full system hardware specs and OS.

Make and model monitor? Did you doublecheck the menu settings to ensure that the PC is connected to the port that the monitor is expecting?

Have you tried another known working video cable? Be sure that the cable is fully and firmly plugged in on both ends.

Have you tried another known working monitor on your PC?

Have you tried the "no signal" monitor on another known working PC?

Key is to determine if the problem stays with the PC or follows the monitor.
 
Apr 3, 2020
17
0
10
0
Update your post to include full system hardware specs and OS.

Make and model monitor? Did you doublecheck the menu settings to ensure that the PC is connected to the port that the monitor is expecting?

Have you tried another known working video cable? Be sure that the cable is fully and firmly plugged in on both ends.

Have you tried another known working monitor on your PC?

Have you tried the "no signal" monitor on another known working PC?

Key is to determine if the problem stays with the PC or follows the monitor.
Hello! My PC is i3-2120, 16gb ddr3 RAM, GPU 750 ti 4gb oc, 350w PSU fsp
I tryed on two monitors that wotk with other PC's.
Yes i firmly plugged it in both ends.
i'm pretty sure it's the PC's fault.
 

Ralston18

Titan
Moderator
Does indeed appear to be 350 Watts.

Reference:

https://bulk.fsp-europe.com/fsp350-60apn-85

According to the following link the GPU's minimum system power requirement is 300 watts.

Very likely that the total PC wattage requirement is more than the current PSU can provide. Even more so if the PSU is older and has been heavily used for gaming, graphics, or bit-mining.

Does the motherboard have built in graphics?

If so, pull the GPU and use the motherboard's graphics port(s) with the monitors.

Test as before.
 
Apr 3, 2020
17
0
10
0
Does indeed appear to be 350 Watts.

Reference:

https://bulk.fsp-europe.com/fsp350-60apn-85

According to the following link the GPU's minimum system power requirement is 300 watts.

Very likely that the total PC wattage requirement is more than the current PSU can provide. Even more so if the PSU is older and has been heavily used for gaming, graphics, or bit-mining.

Does the motherboard have built in graphics?

If so, pull the GPU and use the motherboard's graphics port(s) with the monitors.

Test as before.
I already tried with no GPU only motherboard video ports, but I don’t know if the motherboard has built in graphics.
motherbord: Intel DQ67SW
 

Ralston18

Titan
Moderator
https://ark.intel.com/content/www/us/en/ark/products/51997/intel-desktop-board-dq67sw.html

https://ark.intel.com/content/www/us/en/ark/products/53426/intel-core-i3-2120-processor-3m-cache-3-30-ghz.html

You should have graphics without a separate GPU.

Depending on circumstances, a PSU can partially work. Three voltages are provided to the host computer and if any of those voltages is lost or out of spec then problems occur.

Two links with three purposes:

https://www.techspot.com/article/1967-anatomy-psu/

https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158

Purposes:

1) Help you understand a bit more about PSU's and what they do.

2) Provide some additional troubleshooting options.

3) Trigger some thought or memory of other problems that may provide additional insight as to what happened or is happening.
 
Reactions: MatChesix
Apr 3, 2020
17
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https://ark.intel.com/content/www/us/en/ark/products/51997/intel-desktop-board-dq67sw.html

https://ark.intel.com/content/www/us/en/ark/products/53426/intel-core-i3-2120-processor-3m-cache-3-30-ghz.html

You should have graphics without a separate GPU.

Depending on circumstances, a PSU can partially work. Three voltages are provided to the host computer and if any of those voltages is lost or out of spec then problems occur.

Two links with three purposes:

https://www.techspot.com/article/1967-anatomy-psu/

https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158

Purposes:

1) Help you understand a bit more about PSU's and what they do.

2) Provide some additional troubleshooting options.

3) Trigger some thought or memory of other problems that may provide additional insight as to what happened or is happening.
Thank you for the links, I will try to troubleshoot the PSU, but I don’t know if it’s the PSU’a fault, I tried another PSU in this PC and still I got no signal, but that PSU could be broken to, I haven’t tested it in a working PC.
 

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