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ASUS Maximus VI Hero PCIEX1_1 not working

Last response: in Motherboards
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April 16, 2014 1:22:50 AM

Hey guys,
I recently bought an ASUS Maximus VI Hero PCIEX1_1 for an SLI build with a PCIE sound card (Xonar Xense). The top PCIE 1x slot (PCIEX1_1, precisely) doesn't seem to work for the sound card as nothing gets detected. It works fine in the second x1 slot so I know the card is good, however if I put it in the second x1 slot the card itself blocks the fan of one of my GPU which hinders airflow and can raise its temperature real high, which is a problem. And since I'm using SLI, the second card blocks the third x1 slot. So my only option is to use the first x1 slot, which is not working. I googled around a little bit before posting this and people say for mobos there are certain BIOS settings that either enable or disable certain PCIE slots. The only noticeable thing I found about this mobo is that if the 4_3 slot is set to x4 speed, 1_1/2/3 will be disabled. So I have made sure it's set to x1 speed, and 1_2 is working, but 1_1 is not. No other component is broken because I have tested them on another motherboard and they are all running fine. Can someone help?
April 16, 2014 4:03:50 AM

A7V400-MX
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April 16, 2014 6:34:14 PM

muhammedaslam said:
A7V400-MX

Sorry to say this but your reply is not being helpful here... If I wanted to buy a new motherboard I wouldn't be posting this thread here, I would just go buy a new motherboard. The fact is I got this mobo yesterday and came to Tom's Hardware for a quick solution. Buying a new motherboard is only my last resort option. Not to mention the A7V400-MX only has two memory slots, but I need all 4 to make the 32GB to work.
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a c 827 Ĉ ASUS
a c 1578 V Motherboard
April 16, 2014 6:50:30 PM

Yeah, and nothing like suggest a nearly 10 year old mobo.....LOL.... Might try resetting the CMOS with power unplugged, then power up ensure all looks good, then install the drivers, shut down and install the card.
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April 18, 2014 3:07:54 AM

Tradesman1 said:
Yeah, and nothing like suggest a nearly 10 year old mobo.....LOL.... Might try resetting the CMOS with power unplugged, then power up ensure all looks good, then install the drivers, shut down and install the card.


Hi Tradesman1,

Thanks for the reply! I tried clearing CMOS but it didn't work. I expected so because I've been having this problem since I got it fresh out of the box, and clearing CMOS merely set it to default. I've done some googling around and this seems to be a common design problem. Someone with an ASUS Z87 Sabretooth had the EXACT same problem! I don't know if this is against forum rules but here's the link: http://forums.whirlpool.net.au/forum-replies.cfm?t=2149...
Apparently for the sabretooth they are making a bios update to solve this problem and they provided a temporary solution. However their solution doesn't work in my bios because I simply don't have their option. :( 
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Best solution

a c 827 Ĉ ASUS
a c 1578 V Motherboard
April 18, 2014 8:22:02 AM

Do you have the latest BIOS? Latest Drivers for the card....Odd, because I have the Hero also, 2 780s in SLI and am running a TV tuner card in the top X1 slot - all is fine....
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April 19, 2014 5:03:22 AM

Tradesman1 said:
Do you have the latest BIOS? Latest Drivers for the card....Odd, because I have the Hero also, 2 780s in SLI and am running a TV tuner card in the top X1 slot - all is fine....


Hi Tradesman1,

Thanks for your reply again! I just got it working! I did it by re-installing the driver for the sound card. I think it worked because during the installation the driver detects the card somehow. Glad I tried re-installing the driver as you suggested! I thought that it wouldn't work because the driver was previously installed on my computer! :
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a c 827 Ĉ ASUS
a c 1578 V Motherboard
April 19, 2014 8:17:06 AM

Glad to hear all is well ;) 
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