I can run 2 sata HDDs with a sata dvd drive but when I install a third HDD I'm guessing it's recognizing my third hdd as C. a

[PcMan007]

I just built my own computer and everything is working perfectly. There are 4 SATA connections coming off the power supply cables. if I try to run 3 hard drives and no DVD Drive it won't find the C Drive and the computer does not boot. if I run the computer with two hard drives and a DVD Drive all on SATA everything works perfectly. Right now all I have Sata channels 1, 2 and 3 being used as c, d, and DVD. I plugged in a cable to SATA channel 6 to use for the final hard drive. And after I plug that one in it says please insert master disk or cannot find boot disk. Is it impossible to run three hard drives or what???

 

[geofelt]

What is your motherboard?
Sometimes sata 6 is used for a m.2 card and is not available for a sata attachment without a bios reassignment.

 

[PcMan007]

The mb is Asus. In the bios all 6 sata channels are set up default as ide. The other options are raid and ahci but I just left the defaults at ide. Will I need jumpers maybe? The hdds didn't come with jumpers but a relative of mine seems to think I need to set jumpers on one of the HDDs.

 

[PcMan007]

I moved the SATA cable to channel 4 and everything works normally with a third hard drive so that may have been it all along. everything else works wonderful in the computer no problems or issues