PC turn on, but no graphic on monitor

camoxiong · Oct 5, 2012

I just recently did a cable management and changed my thermal paste on my CPU. I have connected all the cables to the mobo, HDDs, and etc. When I turn on my pc, everything start normally, but it doesn't show anything on the monitor. I tired using on board video and still the same thing. What's the problem?

Widjaja · Oct 5, 2012

Try unplugging the PSU, flipping out the battery and pressing the power button to drain the system.
reinsert the battery, plug the PSU cable back in and power on.

micropage7 · Oct 5, 2012

have you checked your monitor? check the cable first
it may be loose

camoxiong · Oct 5, 2012

Widjaja said:
Try unplugging the PSU, flipping out the battery and pressing the power button to drain the system.
reinsert the battery, plug the PSU cable back in and power on.

you mean the CMOS battery?

micropage7 said:
have you checked your monitor? check the cable first
it may be loose

I did

camoxiong · Oct 5, 2012

I did what Widjaja and still don't work

Jetster · Oct 5, 2012

Power cables hook up to your GPU?
4 Pin CPU power?
Check all your connections
Remember if you use your integrated GPU to change the DVI/VGA cable to the right connection
Those are the mistakes I make

camoxiong · Oct 5, 2012

Jetster said:
Power cables hook up to your GPU?
4 Pin CPU power?
Check all your connections
Remember if you use your integrated GPU to change the DVI/VGA cable to the right connection
Those are the mistakes I make

Yes, I check all my connections. I tired using my old vga cord to my video still dont work.

TC-man · Oct 5, 2012

Hi,

perhaps check with an other dedicated videocard or other monitor, rule out which one is the culprit of the problem. Also check the 'source' on the monitor via the menu on it (maybe it's set on other source?).

camoxiong · Oct 5, 2012

TC-man said:
Hi,

perhaps check with an other dedicated videocard or other monitor, rule out which one is the culprit of the problem. Also check the 'source' on the monitor via the menu on it (maybe it's set on other source?).

Oh dammit, I don't have another video card and another monitor. My old monitor just broke on me last week.

camoxiong · Oct 5, 2012

So is this the MOBO or video card problem or both?

Widjaja · Oct 5, 2012

Since you are getting no signal through on board as well, I think it would be safe to say it is not the graphics card.
It the motherboard making any post beeps?

camoxiong · Oct 5, 2012

Widjaja said:
Since you are getting no signal through on board as well, I think it would be safe to say it is not the graphics card.
It the motherboard making any post beeps?

I don't hear any beeps from the motherboard

Widjaja · Oct 5, 2012

Pull out the ram sticks and see if it makes any beeps.

micropage7 · Oct 5, 2012

are sure it turn on? not shut down by it self
if you dont move anything
i suggest try to put the board off from the case and re test again

camoxiong · Oct 5, 2012

Widjaja said:
Pull out the ram sticks and see if it makes any beeps.

still no beeps

micropage7 said:
are sure it turn on? not shut down by it self
if you dont move anything
i suggest try to put the board off from the case and re test again

everything power on when i pressed the power button. ok, I'll do that.

TC-man · Oct 5, 2012

Hi,

since you say you also have tried using onboard video, then does this you actually can go into the bios to switch between dedicated videocard and onboard which means you have display when you are in the bios? But you are not getting any display when you are in Windows OS?

micropage7 · Oct 5, 2012

no beep at all? have you tried to turn it on without ram.
does it beep without ram? if not, your board maybe in trouble

Widjaja · Oct 5, 2012

Board or PSU since there are no beeps.

camoxiong · Oct 5, 2012

micropage7 said:
no beep at all? have you tried to turn it on without ram.
does it beep without ram? if not, your board maybe in trouble

still no beeps without the ram

Widjaja said:
Board or PSU since there are no beeps.

no still beeps.

So, it's my mobo?

TC-man · Oct 5, 2012

camoxiong said:
still no beeps without the ram

no still beeps.

So, it's my mobo?

But doesn't that depends whether your PC case has a built-in pc-speaker? Or does your motherboard has such built-in pc-speaker?

Anyway, do you have display while posting the PC and in bios, or you do not have display at all, but can hear the harddrive is actually booting into windows?

micropage7 · Oct 5, 2012

could be
1. your board is dead
2. your psu that in trouble
3. everything is ok just loose or miss cable

personally i think is about the cable since your pc before you did cable management is fine
if it turn on for several second, maybe you have short circuit

camoxiong · Oct 5, 2012

TC-man said:
But doesn't that depends whether your PC case has a built-in pc-speaker? Or does your motherboard has such built-in pc-speaker?

Anyway, do you have display while posting the PC and in bios, or you do not have display at all, but can hear the harddrive is actually booting into windows?

no display at all, all the 3 HDDs are spinning. I think it's booting without the display.

TC-man · Oct 5, 2012

Perhaps try to clear cmos (I know you have removed the cmos battery) with the jumper method (JBAT1 on the motherboard) and left the jumper for while, and then remove the jumper before you go further.

And have you tried re-seating everything, but now with less hardware/components? For example just motherboard + cpu + 1 stick ram + PSU + monitor, preferably after clearing cmos. Maybe also check on the cpu if it doesn't have a bent pin.

Jetster · Oct 5, 2012

camoxiong said:
no display at all, all the 3 HDDs are spinning. I think it's booting without the display.

Theres no way to tell that. Pull everything and bench test the MB with one stick of ram, CPU and power supply. Thats it. Hook up a monitor to the onboard GPU Jump the power leads on the front panel header. If still no post then the board or PSU are gone. And could be both

If you live in a dry area static could have killed it

camoxiong · Oct 5, 2012

TC-man said:
Perhaps try to clear cmos (I know you have removed the cmos battery) with the jumper method (JBAT1 on the motherboard) and left the jumper for while, and then remove the jumper before you go further.

And have you tried re-seating everything, but now with less hardware/components? For example just motherboard + cpu + 1 stick ram + PSU + monitor, preferably after clearing cmos. Maybe also check on the cpu if it doesn't have a bent pin.

I have tried what you say and I see no CPU pins bent

Jetster said:
Theres no way to tell that. Pull everything and bench test the MB with one stick of ram, CPU and power supply. Thats it. Hook up a monitor to the onboard GPU Jump the power leads on the front panel header. If still no post then the board or PSU are gone. And could be both

I tried that too, stil dont work. So it's my board and psu?

If you live in a dry area static could have killed it

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Video Card(s)	Sapphire 7950 Dual-X
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Display(s)	Acer H236HLbid IPS
Case	NZXT Gamma (Powder Coated Champion White)
Audio Device(s)	Creative Lab SB0460
Power Supply	NZXT HALE82 V2 550W
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Processor	AMD Phenom ii 1045t x6 @ 3.5Ghz OC
Motherboard	ASRock 970 Extreme3 R2.0 AM3+
Cooling	CM Hyper 212 EVO Push Pull
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Video Card(s)	Sapphire 7950 Dual-X
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