Computer won't turn on when SATA cables plugged in.

[Benjamintmn]

Hi! I've just replaced a dead PSU (CX750M) and replaced it with a LEPA G1000M MaxGold. When I tried plugging everything into the PSU I was surprised as the computer wouldn't turn on so I unplugged everything and only plugged the 24Pin cable and the CPU cable and the computer would run fine. I then turned off the computer to plug the graphics cards into the PSU and when i turned it on again, everthing worked fine. I then turned off the computer once again and tried plugging the SATA cables plugged to my HDD into the PSU. Now when I did that and tried booting my PC, it simply wouldn't even power on (No flick, no nothing).
I've been at it trying to figure out how I could fix this issue for 2 days but I simply can't figure it out, please help me.

Thanks in advance<3

EDIT: Forgot to mention that when I plug my Disc Drive into the PSU with the SATA cables the PC won't turn on either.

 

[maz89]

I have a feeling the SATA cable or HDD is somehow causing the system to short. Do you have a spare SATA cable? Can you try putting the HDD on a wooden surface, hooking it up with the SATA port and then powering on your system? Also use a different SATA port on the mobo.

 

[Benjamintmn]

I've tried everything you said but to no avail. I've also tried it with both the new SATA cables that came with the new PSU and the old ones that I used with my CX750M.

 

[Benjamintmn]

Wow, actually, I tried with the another SATA cable that was offered with the PSU and now everything appears to work just fine. Will keep this thread updated if anything goes wrong. <3

 

[maz89]

^You've also taken the HDD physically out of the case whilst being hooked up with the PSU & mobo and then tried powering on?

Also make sure the PSU end of the SATA power cable is connected properly to the PSU too.

Edit: just saw your second post. Cool! Fingers crossed.