Harddrives/DVD drive not detected in BIOS. Have to fix it every day by moving cables

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hedgehog90

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Jan 12, 2013
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I recently upgraded my motherboard from an 'ASRock N68C-S' to a 'Asus M5A78L-M/USB3'
The motherboard worked for approximately a day and a half, then the LAN socket stopped working, then the entire board stopped working. Just my luck, it turned out to be faulty, I sent it back for a refund and bought the same model again.
I received the new motherboard and installed it, and everything seemed fine. After over a week's usage, the LAN socket is working and performance in general is great... except one annoying and worrying thing...

I have 3 hard drives and 1 DVD drive.
Every morning, when I turn on the computer, at least 1 of these things is not detected in the BIOS and so they are unusable.
With the power off (by the mains) I disconnect undetected drive's sata cable an plug them into a different port on the motherboard. There are 6 ports, and then inexplicably it works.
But every day, after not using the computer for 8 - 10 hours (the time that I am asleep), I have to remove the case and route around...

Unfortunately, because Asus are ****, I cannot download all of the drivers I need for the motherboard on their site because I run Windows 8 64bit, for which they have less than a quarter of the drivers compared to other OS's
I have been able to update the BIOS though.
This hasn't helped.

The most obvious cause is another faulty motherboard, because I'm not the luckiest person... this type of **** happens to me.
However, on separate occasions I have been able to get each sata port working with a drive. It's just it then decides randomly the next day to stop working.
The other possibility is that my power supply isn't giving enough juice... well, it's 600 watts and it does work just fine once I've switched the sata cables around a bit.
Oh, and ofcourse, the OTHER possibility is that I have a couple of faulty sata cables... but again, every morning i get it working, same cables, same drives, same motherboard, but I just have to move the cables to different ports.
 

hedgehog90

Thread Starter
Joined
Jan 12, 2013
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2
Maybe I didn't make it clear in the initial post, but could somebody help me please?
 
Joined
Jun 11, 2004
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3,888
Can you supply information to substantiate your power supply is adeqaute?

Running 3 hard drives does consume a fair amount of power. There is also a possibility the first mobo failed because of not adequately powered.

Power supplies have several grades and a 600 watts seems tight especially if you run any decent graphic card.

Modern computer equipment needs stability. If you don't get the stability then the PSU is the first candidate to look into.

What you get from an expensive PSU is the the stability of the delivery of the voltage and current at the rated output within the tolerance stated.
 

dai

Joined
Mar 6, 2003
Messages
11,198
what are you running
video card brand and model
cpu
m/board
ram
power supply
brand
model
wattage

check the listings in the bios for 12v line voltages and temperatures and post them

you check the cables by using a new one
 
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