• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

PC Monitor No signal

srrfrhmn

New Member
Joined
Jun 30, 2020
Messages
4 (0.00/day)
The Pc at first glance seems to turn on, LEDs turn on, fans spin, but when connected to a monitor, its does not show any signal. Also, after the initial start up, when I try to turn off the PC by holding the power button, it is unresponsive. As a side note, (not too sure how helpful this information will be), there is a blue LED that normally flashes blue on the case near the power button, that is also not flashing anymore.

Any ideas?
 
Joined
Jan 17, 2010
Messages
12,280 (2.36/day)
Location
Oregon
System Name Juliette // HTPC
Processor Intel i7 9700K // AMD Ryzen 5 5600G
Motherboard ASUS Prime Z390X-A // ASRock B550 ITX-AC
Cooling Noctua NH-U12 Black // Stock
Memory Corsair DDR4 3600 32gb //G.SKILL Trident Z Royal Series 16GB (2 x 8GB) 3600
Video Card(s) ASUS RTX4070 OC// GTX 1650
Storage Samsung 970 EVO NVMe 1Tb, Intel 665p Series M.2 2280 1TB // Samsung 1Tb SSD
Display(s) ASUS VP348QGL 34" Quad HD 3440 x 1440 // 55" LG 4K SK8000 Series
Case Seasonic SYNCRO Q7// Silverstone Granada GD05
Audio Device(s) Focusrite Scarlett 4i4 // HDMI to Samsung HW-R650 sound bar
Power Supply Seasonic SYNCRO 750 W // CORSAIR Vengeance 650M
Mouse Cooler Master MM710 53G
Keyboard Logitech 920-009300 G512 SE
Software Windows 10 Pro // Windows 10 Pro
Did it work properly at one time? The blue light is probably the HDD so its not active.
What changed?
Specs? Laptop?
did you try another monitor?
 

srrfrhmn

New Member
Joined
Jun 30, 2020
Messages
4 (0.00/day)
Did it work properly at one time? The blue light is probably the HDD so its not active.
What changed?
Specs? Laptop?
did you try another monitor?
It worked fine just a few hours back, I had shut it down for a couple hours. I went back to it and the monitors were saying no signal. As far as I know nothing changed. I have not tried another monitor but I was on a dual monitor setup and tried both, and each individually. Its a prebuilt cyberpower pc. I will be posting the specs when I get home.
 
Joined
Feb 20, 2020
Messages
9,340 (6.14/day)
Location
Louisiana
System Name Ghetto Rigs z490|x99|Acer 17 Nitro 7840hs/ 5600c40-2x16/ 4060/ 1tb acer stock m.2/ 4tb sn850x
Processor 10900k w/Optimus Foundation | 5930k w/Black Noctua D15
Motherboard z490 Maximus XII Apex | x99 Sabertooth
Cooling oCool D5 res-combo/280 GTX/ Optimus Foundation/ gpu water block | Blk D15
Memory Trident-Z Royal 4000c16 2x16gb | Trident-Z 3200c14 4x8gb
Video Card(s) Titan Xp-water | evga 980ti gaming-w/ air
Storage 970evo+500gb & sn850x 4tb | 860 pro 256gb | Acer m.2 1tb/ sn850x 4tb| Many2.5" sata's ssd 3.5hdd's
Display(s) 1-AOC G2460PG 24"G-Sync 144Hz/ 2nd 1-ASUS VG248QE 24"/ 3rd LG 43" series
Case D450 | Cherry Entertainment center on Test bench
Audio Device(s) Built in Realtek x2 with 2-Insignia 2.0 sound bars & 1-LG sound bar
Power Supply EVGA 1000P2 with APC AX1500 | 850P2 with CyberPower-GX1325U
Mouse Redragon 901 Perdition x3
Keyboard G710+x3
Software Win-7 pro x3 and win-10 & 11pro x3
Benchmark Scores Are in the benchmark section
Hi,
I sometime get no signal
I just unplug the motitors power cable wait 10 seconds and plug it back in and boom it gets signal again.
Junk asus monitor.
 

srrfrhmn

New Member
Joined
Jun 30, 2020
Messages
4 (0.00/day)
Hi,
I sometime get no signal
I just unplug the motitors power cable wait 10 seconds and plug it back in and boom it gets signal again.
Junk asus monitor.
I plugged in a different PC and it works just fine so I'm guessing its not an issue with the monitors
 
Joined
Oct 22, 2014
Messages
13,210 (3.81/day)
Location
Sunshine Coast
System Name Black Box
Processor Intel Xeon E3-1260L v5
Motherboard MSI E3 KRAIT Gaming v5
Cooling Tt tower + 120mm Tt fan
Memory G.Skill 16GB 3600 C18
Video Card(s) Asus GTX 970 Mini
Storage Kingston A2000 512Gb NVME
Display(s) AOC 24" Freesync 1m.s. 75Hz
Case Corsair 450D High Air Flow.
Audio Device(s) No need.
Power Supply FSP Aurum 650W
Mouse Yes
Keyboard Of course
Software W10 Pro 64 bit
Try unplugging the system and clearing the CMOS for 30 seconds, then reconnect and power up.
Hopefully it works.
System specs would help to diagnose any issues.
 

srrfrhmn

New Member
Joined
Jun 30, 2020
Messages
4 (0.00/day)
Try unplugging the system and clearing the CMOS for 30 seconds, then reconnect and power up.
Hopefully it works.
System specs would help to diagnose any issues.
I have tried clearing the CMOS, (I took out the small circle battery for a minute, I think thats how you're supposed to do it but im not sure).
Here are the full specs:
1593569527951.png
 
Joined
Oct 22, 2014
Messages
13,210 (3.81/day)
Location
Sunshine Coast
System Name Black Box
Processor Intel Xeon E3-1260L v5
Motherboard MSI E3 KRAIT Gaming v5
Cooling Tt tower + 120mm Tt fan
Memory G.Skill 16GB 3600 C18
Video Card(s) Asus GTX 970 Mini
Storage Kingston A2000 512Gb NVME
Display(s) AOC 24" Freesync 1m.s. 75Hz
Case Corsair 450D High Air Flow.
Audio Device(s) No need.
Power Supply FSP Aurum 650W
Mouse Yes
Keyboard Of course
Software W10 Pro 64 bit
Sounds like it is locking up on a black screen during the boot process.
If it is under warranty, send it back.
If not it means you will have to strip it down to basics by disconnecting most components from the Motherboard except the CPU, Ram, Hard drive and GPU.
You could try with just CPU and one stick of Ram to see if any beep codes are made if it has an onboard speaker.
Test with a different GPU also.
 
Top