[SOLVED] First Build: No Signal from Monitor

Dec 5, 2018
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Hello everyone,

I am currently in the process on putting together my first build, and I'll say, what a week it has been. As fun as it has been putting together my first build and learning as I go, I am getting a "No signal" error from my monitor.

I do believe the build is complete, but I did face other problems getting to this point. The first time I tried to power on my PC, it wouldn't. What I found out was I used the wrong power connector, PCI-E, to power up the CPU and vice versa with my graphics card. After I got that all settled, I sorted out the front panel plugs and connected them to the right pins according to my motherboard's manual. The good news is that the computer powers on, the CPU fan works, and the graphics card appears to be on as its fans are spinning as well. The computer stays on for around 10-15 seconds and restarts, but I assume that is because there is nothing to boot to. I haven't been able to get to the bios or install a version of Windows 10 yet.

Here are the specs (all parts new):
Intel - Core i3-8100 3.6 GHz Quad-Core Processor
ASRock - H310M-ITX/ac Mini ITX LGA1151 Motherboard
Crucial - Ballistix Sport LT 8 GB (2 x 4 GB) DDR4-2400 Memory
Samsung - 860 Evo 500 GB 2.5" Solid State Drive
Stock CPU cooler
ASRock - Radeon RX 570 4 GB Phantom Gaming X Video Card
Thermaltake - Core V21 MicroATX Mini Tower Case
Thermaltake - Smart 500 W 80+ Certified ATX Power Supply

Steps I have done to try and figure out what may be the problem:
1. Turned the power supply on and off. It seems to work as the computer turns on while the power switch is turned on. Mouse's RGB colors turn on.
2. I have tried plugging a wired mouse and keyboard to check to see if the motherboard is working. I plugged my RGB mouse into every USB port on the back of my computer, and it lights up while the power switch is on.
3. I made sure every power connector is connected and snug to their respective computer part.
4. As mentioned previously, I made sure the front panel plugs were connected to the right pins.
5. The solid state drive is connected.
6. The CPU fan and power connector are connected.
7. I have verified that the GPU is fully seated.
8. I have tried using one stick of RAM instead of two to see if that would change anything. Nothing changed.
9. The motherboard only comes with two RAM slots. I made sure both were fully inserted during testing and while they were together.
10. I did remove the plastic guard that was over the CPU socket. The CPU is also installed correctly according to the CPU and motherboard manual (arrows).
11. I made sure all 4 push pins from the CPU cooler were pushed in.
12. I have tried both the HDMI and DVI ports on the GPU and motherboard with two different monitors.

I believe the case has built-in raised standoffs, but at this point, I'm not sure what the problem may be. I just hope I didn't buy lemons.

Thank you for taking the time to read this.
 
Solution
can you remove the GPU from the system and only have a single stick of RAM inserted on the motherboard and try booting with just the iGPU?
Make sure the single stick of RAM is inserted into the slot it's supposed to be in according to the motherboard manual for single channel
the power supply is cheap and crappy. That could be your issue.
Try doing a CMOS reset on the motherboard.
When booting up a PC for the first time after building, leave it alone for a few minutes as it can take a little time for the BIOS to boot up and give you a post screen.

Also, after booting up, be sure to make sure the monitor is actually turned on by pressing the power button.
 


Hi xSimply1337x,

Thanks for getting back to me. I left the PC to boot for about 5 minutes, and it would restart about every 30-45 seconds or so. Let me know if there is a better way, but I tried reseting the CMOS with a flathead screwdriver after turning the PC completely off and unplugged and held it against both pins for about 5 seconds. Still no dice unfortunately.

If anyone else has some insight, that would be great, but as you said, I may be leaning towards the power supply being the problem.

Is there a power supply you would recommend? I do not plan on over-clocking my CPU and GPU if that helps.
 

Woof, lol.

I tried removing the battery and resetting jumper as instructed and still nothing unfortunately.
 
can you remove the GPU from the system and only have a single stick of RAM inserted on the motherboard and try booting with just the iGPU?
Make sure the single stick of RAM is inserted into the slot it's supposed to be in according to the motherboard manual for single channel
 
Solution

Hey xSimply1337x,

Apologies for the late reply, I ended up trying that with each stick of RAM and still no dice. Any more suggestions?
 
Hey xSimply1337x,

Sorry for the late reply. The two ram slots were the problem. I returned the motherboard and got a replacement that worked.

Thanks for troubleshooting with me.
 
Hey xSimply1337x,

Sorry for the late reply. The two ram slots were the problem. I returned the motherboard and got a replacement that worked.

Thanks for troubleshooting with me.