two HDD Connection problem in Gigabyte GA-B75M-D3H Motherboard

Rogan69

Honorable
Apr 6, 2013
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10,530
hi guys i brought GA-B75M-D3H Motherboard and HD 7750 1GB DDR5 graphics card , now i have a problem in connecting HDD's , i have two hard disk each of 250 GB , 7200 rpm , seagate barcuda HDD , when i connect two HDD in port 2 & 3 , the mother detects any one drive . (Sata Port 0 & 1 is Open) , i installed new OS Win 7 64 bit, but when i restart it will show no boot device found and bios says no sata drive in that connected port ... pls help me guys
 


it works as seperately, but i need both of my hdd , pls help to fix it... it taking both HDD at sometimes and sometime only one HDD is detected and other one fails.
 



ya i tried , my HDD are in AHCI , and connected to different ports but neither worked , with one HDD connected , it was working fine , when i connected another HDD (brand new) . it making failed to connect
 


i did one HDD which has Win7 in SATA 0 (port 0) with 6 gb/s connection and another HDD (dont have OS) in SATA 2 (port 2) . it was connecting at first time when booting , after two or three times of use the problem again occurs , i set my SATA = IDE in Bios Setup , if i change to AHCI then the System Restarts again and again.. pls help
 


Shall i change to AHCI and install the OS again , with two HDD Connected .. ?
 
up to you ~ if you want to use AHCI you should set them in AHCI mode before installing them.
of course there is some way you can change them after os installation, but it will be better to confirm any issue from a pure installation.