Monitor refuses to switch on

rhitwick · 02-12-2011, 03:04 PM

Hi everyone, I'm having this issue for couple of weeks now. Initially it would be once in 1-2 days but now its so request that I'm scared to shut down my PC in fear that it might come alive again.

The Config:-
Q6600
ABiT IX 38 Quad GT
Gskill RAM 4GB
PSU: Corsair (wattage right now I don't remember)
GFX card: evga 8800GT
Monitor : AOC 917 VW

The set up:-
I've (well...had) an APC UPS which is used for supplying power to all PC related components. The PSU, Monitor, Speaker, external HDDs

Now my UPS is dead so all running direct power.

Issue:-
I switch on PC and it HDD lite come alive, I hear whirling sound of PSU fan. If my speakers are powerd on...I hear Win7 boot sound which confirms that everything is working smoothly in the background.
BUT, my monitor is blank.
Retry, retry, retry...and it may come alive in any one attempt out of 100 restarts.

What I did till now to resolve:-
Opened cabinet, Cleaned dust. Changed 6 pin power cable for gfx card. Switched DVI out port for monitor.
No change in behavior.

What I'm left to do:-
Change RAM slots. Change CMOS battery.
I can't figure out anything else.

Guys please help me out. I'm totally clueless wtf is happening and wat to do?

sukesh1090 · 02-12-2011, 06:51 PM

^^does your mobo has any integrated gfx chip?if it has then connect your monitor to that integrated one and see if you still face the problem.
another thing just check when you disconnect the monitor cable does it shows any message like no signal like that.it is just to check that your monitor is working fine.
as you are able to hear the sound of windows 7 logon so i doubt the part of ram in this issue as if it had any problem your system wouldn't have booted at all.

d6bmg · 02-12-2011, 06:51 PM

~~If your motherboard have its own VGA/DVI port, then you should put the DVI/VGA port of your monitor in there.~~

Wait. Just checked. Your motherboard doesn't have its own display port. So, you have no way but to try out another graphics card (try to get one from your friend). From the scenarios it looks like,
either monitor has gone bad or graphics card have gone kaput.

**Sam** · 02-12-2011, 07:59 PM

^^ X38 is a highend chipset like X58. no graphics.

@rhitwick, important point missed. monitor led blinks? only then can we know if its monitor problem or cable/port is the culprit.

sukesh1090 · 02-12-2011, 08:13 PM

the best thing op can do is just check that the monitor is correct.if it is then add some other gfx card and check if it works or not.

rhitwick · 02-12-2011, 08:56 PM

Guys its not a permanent issue. My monitor come back to life at times. Like now... after 15-20 switch-on off for main power it is showing display.

And, yes...the moment monitor get power the power button led becomes "blue" i.e. coming to life and the next moment it shows "No Signal" and goes "red"

If constant switch-on/off for main power is carried out...the monitor comes back to life.

Is there any way I check the monitor alone or the gfx card alone?

sukesh1090 · 02-12-2011, 11:02 PM

just plug your gfx card in some other system or check it in any service center whom you know very well.clean all ram,PCI E slots and clear your CMOS memory.

**Sam** · 03-12-2011, 12:05 AM

try changing ram slots & if system boots up and stays stable, then ram problem can be ruled out as if it was ram problem, the problem should be constant or the system should restart.

next try the GPU testing thing as suggested by sukesh. i feel its a motherboard or GPU problem.

Zangetsu · 03-12-2011, 09:59 AM

@rhitwick: Its not a monitor problem....its a GPU problem.

u can hear the windows boot sound..ryt?then RAM is not faulty...
its display issue with GPU...sometime works sometimes not...