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riff.79

Spare Parts Build - Advice please

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Posted (edited)

Hey there!   

 

So I'm looking to build a new UNRAID server to replace my N40L.

 

I have these parts sitting around - I'm slightly concerned the power supply might not be enough wattage. 

 

OS at time of building:Latest Stable 
CPU:AMD A4-4000 
Motherboard:Asrock Fm2A85X - https://www.asrock.com/mb/AMD/FM2A85X-ITX/ 
RAM:8GB DDR3 
Case:Silverstone DS380 
Power Supply:Silverstone 300W SFX power unit - http://www.silverstonetek.com/product.php?pid=458&area=en 
Fans: Stock 

Parity Drive: 2 x WD RED 4TB 
Data Drives:6 x WD RED 4TB 


Primary Use: 24/7 File Server, no transcoding  

 

This server would be on 24/7 - just a file server - no transcoding etc.

 

Thanks!

Edited by riff.79

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Posted (edited)

A file server is typically very efficient. Power (wattage) is not the main criterion when selecting the PS.

It's the inrush current that has to be supplied at start-up.

The PS delivers ~25A on the 12V rail. Luckily it's a single rail PS!

Now assume 5A for Board and things.

Remaining 20A/8 drives = 2.5A / drive

The WD red is rated at 1,75A peak current.

So your PS is sufficient. You might even go up to 10 drives.

 

Also consider the PSU thread for information.

Edited by Fireball3

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23 hours ago, Fireball3 said:

A file server is typically very efficient. Power (wattage) is not the main criterion when selecting the PS.

It's the inrush current that has to be supplied at start-up.

The PS delivers ~25A on the 12V rail. Luckily it's a single rail PS!

Now assume 5A for Board and things.

Remaining 20A/8 drives = 2.5A / drive

The WD red is rated at 1,75A peak current.

So your PS is sufficient. You might even go up to 10 drives.

 

Also consider the PSU thread for information.

 

Thanks mate! much appreciated.

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