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Asrock Z77 Extreme4 not recognizing GPU

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December 16, 2012 4:55:24 PM

Hello,

I just did a build recently and when I boot up, it is not recognizing my EVGA 560 ti. It also doesn't have a splash screen when it starts up. It goes straight into the windows loading. There is no beep or anything, it just goes straight into windows. Any reason why?
a c 559 V Motherboard
December 16, 2012 5:00:10 PM

Hi,
What happens if you remove the graphics card and clear the CMOS? Will the system wait for F1?
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December 16, 2012 5:15:26 PM

just now i tried clearing CMOS and it waited for F1, but when I went into the UEFI, it had A6 on the dr. debug LED. I think I got A2 one time too
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a c 559 V Motherboard
December 16, 2012 5:19:37 PM

Try leaving only one RAM stick installed and test again.
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December 16, 2012 5:19:55 PM

hmm, I seem to have forgotten to enable AHCI on my motherboard when I installed win7 on my ssd. Should I do another clean install of win7 after I activate AHCI?
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a c 559 V Motherboard
December 16, 2012 5:21:27 PM

Have you had the errror while in BIOS? If yes, then is not related to AHCi. Test with a single module.
Or disconnect the SSD and test again.
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December 16, 2012 5:27:06 PM

well I just now noticed the A6. but I checked the settings and it seems that AHCI is enabled. It sitll gives the same error with only 1 stick of RAM
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a c 559 V Motherboard
December 16, 2012 5:30:19 PM

Disconnect the SSD and test again.
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December 16, 2012 5:35:02 PM

still getting A6 with no ssd. However I did move the GPU into another PCI-E slot, but it's still not being recognized
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a c 559 V Motherboard
December 16, 2012 5:37:00 PM

What drives are connected to the SATA ports?
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December 16, 2012 5:38:45 PM

as of right now, there is nothing connected to the SATA ports. I have two cables that are in the SATA ports physically, but not connected to anything on the other end.
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a c 559 V Motherboard
December 16, 2012 5:41:01 PM

Try connecting a DVD drive and insert a bootable DVD in it. Then restart and access the BIOS.
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December 16, 2012 5:43:28 PM

i actually don't have a DVD drive to try with. I just tried going into BIOS without the GPU and I am still getting A6. Could this be a defective board?
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a c 559 V Motherboard
December 16, 2012 5:45:39 PM

I've checked and A6 is related to the storage drives. And you probably get the error cause there's no drive connected. Any HDD available? Or only the SSD?
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December 16, 2012 5:47:27 PM

I do have one mechanical HDD that is installed in my case. I was just gonna use that as storage so right now it is empty. Should I plug only that one in?
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a c 559 V Motherboard
December 16, 2012 5:50:03 PM

Yes, plug that in and test again. Is it initialized?
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December 16, 2012 5:54:40 PM

Still A6. How do I initialize it?
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a c 559 V Motherboard
December 16, 2012 5:55:38 PM

Connect the SSD and in Windows, Disk Management, right click the HDD.
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December 16, 2012 6:06:39 PM

still no luck. I initialized it and when I boot up, it says to go and selected the proper boot device. I go into the UEFI and it still has A6.


I recorded this short video of the bootup.

http://youtu.be/eAexENEwJpE
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December 16, 2012 6:08:19 PM

the video was recorded before i connected the initialized hdd.
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a c 559 V Motherboard
December 16, 2012 6:11:21 PM

It's OK, as the system can't find a bootable device. Therefore the A6. Now the graphics card. What power supply do you use? Have you connected both PCIe cables?
What's the priority in BIOS for graphics (iGPU, PCI)?
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December 16, 2012 6:13:01 PM

I have a corsair CX500w. I did have both PCIe psu cables connected. In the BIOS it had the default has PCI express everytime I checked it, but still no video.
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a c 559 V Motherboard
December 16, 2012 6:20:27 PM

Have you moved the video cable to the EVGA port? What connection are you using (HDMI to HDMI, DVI to DVI or else)?
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December 16, 2012 6:26:07 PM

There is no video from the EVGA port, I am using HDMI to HDMI via a HDMI to mini HDMI adapter that was included with the card. The card isn't recognized on the motherboard's system browser feature at all.
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a c 559 V Motherboard
December 16, 2012 6:44:30 PM

It should work. It might be a board issue. Try RMA-ing it. Or test firstly the graphics card in a different PC, if possible.
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December 16, 2012 8:50:10 PM

I had this issue last night when putting together my new rig on ASRock Extreme 6 Mobo. It wasn't recognizing my GTX 650 Ti, updated the bios to the latest version 2.40 I think and that solved it for me.
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December 23, 2012 11:18:55 PM

I am having the exact same problem as samtruong, I read somewhere that updating bios might void the warranty so I've not done that, but other than that I've tried most other troubleshooting. I am also missing half of the pins on the second pcie slot, which is a strange coincidence; is that suppose to happen?
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December 30, 2012 11:07:07 PM

It seems that half the pins missing on the second pcie slot is normal. Also, I tested my card in my roommate's rig and it also did not get recognized and no video. I put his card into my rig and it was working, so I went ahead and filed an RMA for it and sent it out. Hopefully you do not have the same issue as me.
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December 31, 2012 2:16:50 AM

samtruong200 said:
It seems that half the pins missing on the second pcie slot is normal. Also, I tested my card in my roommate's rig and it also did not get recognized and no video. I put his card into my rig and it was working, so I went ahead and filed an RMA for it and sent it out. Hopefully you do not have the same issue as me.


I actually found the source of my problem. I needed to plug in all 8 pins from one of my power cords to the gpu, instead of just 6. Lucky I didn't need to rma.
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!