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maximus v extreme only detects one of four gtx 670 cards.

jth4482
Level 7
trying to find a solution to my problem. don't know if the motherboard is defective. I recently bought this motherboard a few weeks already.

I installed 4 gtx 670 cards to the red pcie slots but bios only show the first slot detected. what am i doing wrong. is my motherboard defective. If i install in 1st and 2b slots then it picks up two cards but if i put all four in the red it only picks up one card. i test the other card into the 1st slot and all are detected so not the cards that is causing the problem. please help.

thanks
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7 REPLIES 7

SUKARA
Level 10
Could you please help to check the motherboard bios isn't latest version?
MVE latest bios version 1408 download link:
http://support.asus.com/Download.aspx?SLanguage=zh-tw&p=1&s=39&m=MAXIMUS%20V%20EXTREME&os=35&ft=3&f_...

Chino
Level 15

HiVizMan
Level 40
I know the board can do 4 way SLi with two 690 cards, but I have not tested if the board can do 4 cards in SLi. I will try and find out for you. There is another thread with similar problems to yours by the way. And I assume based on what you have said that you do have all the dip switched for the PCIe lanes on.

I sort of have in the back of my mind that if you put a card in the bottom slot then the others do not work. What happens if you only use three cards and do not use the bottom PCie slot?
To help us help you - please provide as much information about your system and the problem as possible.

hello guys,

thanks for replying. yes it has the 1408 bios version. and i did try without the last slot same thing happen only 1st slot detected. can the motherboard be defected?


maximus v extreme
i7 3770k
4 -gtx 670
4x8gb corsair vengence

thanks

Have you checked that the PCIE dip switches are in the "on" position,as you can shut off power to each lane if you so wish,just a thought.
ASUS CROSSHAIR V FORMULA-Z
AMD FX 8350 (1252)
INTEL CORE I7 2600K (3134A867)
ASUS MAXIMUS IV EXTREME-Z (0002)

OCZ VERTEX 3 120 SSD
GIGABYTE 890FXA UD7 REV 2.1 (F3)
GIGABYTE 890FXA UD7 REV 2.0 (F3)
VARIOUS AMD CPU's
8 GIG G-SKILL SNIPER LOW VOLTAGE 1600
4 GIG G-SKILL RIPJAWS X 2133 C9
8 GIG CORSAIR VENGEANCE 1600 C8 (HYNIX)
CORSAIR OBSIDIAN 800D
CORSAIR HX1000W PSU
2X RADEON HD6970'S XFIRE
4X SAMSUNG F3 1T HDD's 2X RAID 0
CUSTOM WATERCOOLING

all switches are on. thanks. probably got a defective one