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One PSU for Motherboard, One for the HDDs - doable ?

post #1 of 12
Thread Starter 
Hi guys

I'm looking to build my first HTPC.

At the moment I have a raid array box, which uses a normal pc power supply to power the 5 drives, and I have my pc in another case.

I'm planning on combining the two.

I'll be using an e350 motherboard, most likely the asus e35m1-i deluxe.

What I'd like is to be able to power down the 4 hdds as I can at present when they're not in use.

Ie the HTPC will be on, running off its own SSD, to download stuff, run skype etc, but it wont be running movies from the raid array. So rather than having a noisy power supply powering drives that arent in use, Id like to be able to shut these down.

I guess Id have to drill a hole in my case and add another switch for the 2nd power supply wouldnt I - any other suggestions ?

Thanks a lot everyone.

S
post #2 of 12
I have 2 power supplies for my pc 750 main and 450 dedicated gpu.

I had tried something like this in the past but there was a grounding issue that pretty much took everything out.

I will not give any details b/c i would not suggest it, but a google search can find what your looking for.
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Skylake
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post #3 of 12
Thread Starter 
I'm a little confused - You said you've tried it in the past, so you do have 2 power supplies going now or not ?

You wouldn't recommend it then ?

Presumably you have both of yours coming on at the same time anyway, Id need to be able to have them independent.
post #4 of 12
Unnecessary.
post #5 of 12
Why not purchase a fanless Seasonic PSU instead, combine the two systems into a single ATX case (with at least 5 internal 3.5" drive bays) and save yourself the headaches and strife if something should go awry?
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post #6 of 12
Quote:
Originally Posted by scottyh View Post
Hi guys

I'm looking to build my first HTPC.

At the moment I have a raid array box, which uses a normal pc power supply to power the 5 drives, and I have my pc in another case.

I'm planning on combining the two.

Which 2, the raid box, the PC OR the HTPC?


Why not simply use the power management tools provided by your Operating System?



OR


Edited by ()ut[@st - 3/22/11 at 5:38pm
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Leviathan
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post #7 of 12
Thread Starter 
The pc is the htpc.

I thought the windows controls didn't work on Raid arrays.
post #8 of 12
Thread Starter 
Tyler that IS what I'm doing. But I wanted a way to power off the 5 drives when they're not in use. (the majority of the time)
post #9 of 12
Quote:
Originally Posted by scottyh View Post
Tyler that IS what I'm doing. But I wanted a way to power off the 5 drives when they're not in use. (the majority of the time)
5 drives ? sounds a little hard for that.
post #10 of 12
Quote:
Originally Posted by scottyh View Post
Tyler that IS what I'm doing. But I wanted a way to power off the 5 drives when they're not in use. (the majority of the time)
buy WD Green drives

they'll power down if they're not used for some times

Edit: and its a bad idea to have a separate PSU for HDD's as windows will still be active.
Its not wise to unplug HDD's while windows is still running
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