Question about Asrock K7VT4A-Pro Motherboard

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Don't give any signal at monitor

When I turn on computer, it work normaly (only by sound) but on the monitor isn't send any signal. State of the condition leds of rear side of the motherboard is left-up red, right-up green, left-down and right-down red. What that mean???????

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  • dragosdogaru May 11, 2010

    hey what video are u using?

  • Frank
    Frank May 11, 2010

    the motherboard has not build in video, so what video card are you using???

    what lite up on the motherboard is not in question, may be later!


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I mentioned this for someone else with this mb. you can only use a 1.5v (V= Volt) agp video card, older agp video cards are 3.3v (anything new today or in the last 5-6 years is 1.5v) a 3.3v agp video card will permenently damage this motherboard! and some are incorrectly "keyed" for the slot (the last remaining run before the 1.5v turnover) 

Funny thing is they recently introduced "universal agp" 3 "keyed" agp video cards. these can be confusing as well because some do have 1.5v and 3.3v capabilitys while others that still have the 3.3v "key" do not, nor will they draw 3.3 volts even if placed in an older 3.3v only slot, just 1.5 volts.

This is a finicky situation, and this motherboard along with many others in its class can leave you with more questions than awnsers in the end the more you seem go searching for them.

I hope you didnt damage your motherboard with the wrong agp card.
and maybe this will help others in the future with the same dilemma.

Posted on Sep 05, 2009

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I would still lean toward the computer being the issue. A lot of newer monitors will pop up something like "no signal" for 2-3 seconds and then enter power saving mode by default. If your getting at least this for a few seconds I would say the computer isn't working. Please note a computer can still have fans and lights going and still be bad. If you have lights and/or fans going I would start by replacing the power supply on the computer.
The easiest thing to do to narrow a problem down is rule out as much as you can. For the monitor if you have another computer, laptop or a friends laptop hook up the monitor to it and test. Monitor works then you have narrowed your issue to your computer. If the monitor still isn't working (you need to toggle the display generally on laptops [fn + F7] usually) then you know its the monitor.
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If you have ruled out the monitor and power supply I would then try the following
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  • Also can try completely unplugging the computer (pull power cord for 30 seconds) computers don't really turn all they way off usually they sit in S5 power mode)
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