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Monitor loses signal during gaming or fullscreen VLC videos

So I've had this prebuilt computer setup for over 3 months now. Everything was working fine until recently I purchased a new Monitor, a (BenQ RL2455HM 24"" 1ms HDMI Full HD LED Gaming Monitor to be exact). Now it installed just fine, worked well for a month. My problems began 2 days ago, I've been playing Final Fantasy XIV online for a month and suddenly my screen will randomly cut out and go black and display No Signal detected. I have scrolled through my displays as I have been using a DVI cable and it just wont show my screen unless I hard reset my computer. The ingame sound, music and skype all keep playing just fine it's just I have no display. I've updated all my drivers and even downgraded but to no avail. I've pulled out the cords and placed them back, even gone through my screen menu and tried different ports but my screen wont return unless I restart my computer. This has also happened while watching "That 70's show" under VLC in fullscreen, I lose signal then have to restart.

My DVI cable is connected from my screen into my motherboard, the fans are all working fine. At the moment I've gone into GPU tweak and put my
gpu clock to 820, gpu voltage to 1070 (these were about 200 higher then originally by default) and even put my fan speed manually controlled to 55%

Attempted solutions so far:
I've plugged in my old monitor which worked fine previously and it shows the same problem.
I've replaced my DVI cables as well and the problem still persists.
I've dusted out my computer

my specs are
PSU: Cooler Master: Silent Pro M2 720W
Intel Core i5-3570 CPU @ 3.40 GHz 3.40 GHz
16 gb ram
AMD Radeon HD 7800 series
Manufacturer: Net Plus Micro Computers
Model: NetPro 64 bit
Windows 7 64 bit SP 1
BenQ RL2455HM 24"" 1ms HDMI Full HD LED Gaming Monitor

I've been playing my games on high to ultra settings
3 answers Last reply Best Answer
More about monitor loses signal gaming fullscreen vlc videos
  1. Best answer
    Your DVI cable should be connected to your GPU not your Motherboard. And Make sure you're using the correct cable, I.E. DVI-I to DVI-I or DVI-D to DVI-D.
  2. Riptorz said:
    Your DVI cable should be connected to your GPU not your Motherboard. And Make sure you're using the correct cable, I.E. DVI-I to DVI-I or DVI-D to DVI-D.



    Alright thanks, will swap this over now :D

    jesus christ... my DVI cord is infact a DVI - I. The sockets need a DVI - D thank you so much on that pickup, you really are amazing :D picking one up now
  3. CrimsonBlood said:
    Riptorz said:
    Your DVI cable should be connected to your GPU not your Motherboard. And Make sure you're using the correct cable, I.E. DVI-I to DVI-I or DVI-D to DVI-D.



    Alright thanks, will swap this over now :D

    jesus christ... my DVI cord is infact a DVI - I. The sockets need a DVI - D thank you so much on that pickup, you really are amazing :D picking one up now

    Yeah no worries man. Hopefully it helped.
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