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Mag monitor doesn't display bios post

I have a Mag 19inch LCD monitor and a Sapphire 3850 graphics card. When I boot up the display does not come on until Windows boots. I cannot access the bios of my motherboard. I tried a Samsung 22inch LCD monitor and I am then able to see the bios posting. I then switched graphics to a Sapphire X1950 Pro and switched monitors back to the Mag and I can see the bios posting again. The problem is the Mag monitor in combination with the 3850 graphics card that does not display the bios post. Any suggestions?

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  • Vickash May 05, 2008

    Despite repeated reboots I am still not able to see the bios post. The LED only turns from amber to blue once Windows starts and not before so it is obviously not detecting the bios post. Incidentally, the motherboard does not have onboard graphics.

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The BIOS is sending the display information to the monitor but, when you turn your PC on, the LCD will be sleeping and it will take 1~2 seconds to wake up when receiving the display signal. The monitor is working and even if the BIOS messages aren't displayed, you can still press the correct keystrokes to get to the SETUP screen or press PAUSE in the keyboard to see what's going on in the POST.
If your LCD has a bicolor LED indicating the status (Standby/On) keep looking at it, when the LCD gets the video data, the LED turns instantly from amber to Green or blue even if the screen is still black. This way you can have an idea when the LCD gets the initial video signal and to press the keys accordingly.
Your PC will also delay the video output from the secondary video card because it's detected after the onboard card.

Posted on May 04, 2008

  • Anonymous May 05, 2008

    Are you using the VGA output or the DVI?

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I have sapphire ati radeon 5570 graphics card. i have aoc 912sw+ 19 inch lcd monitor. how to connect hdmi port of graphics card with monitor?


the HDMI port is for connecting video and sound to a home theatre / surround sound system. I understand that this monitor only has a VGA connector.

The sapphire ati radeon 5570 graphics card has the following ports on the back to connect to a display: DVI (white), VGA (blue) and DisplayPort (the thin slot in the middle). You can use an ordinary VGA cable to connect the card to your monitor.

Unfortunately you cannot connect this card directly to your monitor using the DisplayPort.

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dude you just need to update the bios !!!! to latest 1.53.version... on the official site of motherboard are the steps on how to do it!! Here is the link to the version http://europe.asrock.com/downloadsite/bios/775/Wolfdale1333-D667(1.53).zip and here is the link of the asrock page http://www.asrock.com/mb/Intel/Wolfdale1333-D667/?cat=Download&os=All

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I have purchased a new Sapphire HD6870 card to replace an older and very loud HD4870. 1st I installed as normal and only the onboard graphics would work. 2nd Tried every trick in the book from updating...


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There are a few things that can cause no display on the monitor.
That single beep means POST = Power On Self Test. Post has tested everything on you're board to be good.
The cable between video card & monitor may be bad or not connected correctly (Swap out the cable as last resort).
2. You're monitor is defective, try swapping it with known working monitor.
3. You're video card is not functioning.
Lastly, when you reset the system cmos/bios everything went back to default. This means you're bios is now using the onboard PCI video graphics. Remove you're radeon 9600 video card. Try booting the system. You should see display again. The only way to test you're radeon would be to boot to the bios & set bios to boot using the AGP radeon. You need to change Init Display First to AGP & not PCI. If you loose video than you know you're AGP card is bad. Reset the cmos/bios before adding another AGP card or you will not get display. This setting is on pg 3-5. Integrated Peripherals. If you need you're manual you can download it from this link: http://www.abit.com.tw/page/en/motherboard/motherboard_detail.php?pMODEL_NAME=NF7-S2G&fMTYPE=Socket+A

Good Luck!
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1 Answer

Mag monitor doesn't display bios post


I have no experience with the DVI links because such technology is still unavailable here in Argentina. We have DVI video cards but finding a suitable DVI monitor is another (long) story.
I think that your card (that has 2 DVI ports) is initializing one port first (the primary one) and then, when windows starts, it initializes the other and outputs video from both ports.
Try connecting the monitor in the other DVI port.
If your card has a VGA output, the VGA gets initialized first.

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Hi,

before doing anything.. What do you mean you get no blank monitor? Do you see anything at all? Do you see the POST running? Also, when you put in the AGP, did you plug your monitor into the new card? Or are you trying to boot from the old intergrated one?

You can change your graphics input in the BIOS from integrated to AGP (after putting in the new card). But, It should pick it up fine without changing it. And if it doesn't work after doing so, your motherboard may keep the settings, and then a deeper problem arises..

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