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cskenney

$289.99 HP ProLiant N40L Microserver Newegg Shell Shocker

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jsox

These things only have a 150W power supply. That's enough for 4x 3.5" SATA drives?

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Joe_Miner

These things only have a 150W power supply. That's enough for 4x 3.5" SATA drives?

 

Hey jsox! How's it going? Great meeting you at the Meet-Up in Indy!! I've read of people who are running 6x3.5" SATA drives. I've run up to 5 plus a SSD.

 

In my 2011 build I'm running 5*ST3000DM001's and a Corsair SSD plus a USB 3.0 PCIe card and 8GB of RAM. No problems.

 

Steady state power requirements are below 100W for 5 spindle drives plus an SSD though they do peak just over 110W at start-up. Check Power Requirements near the end of http://homeservershow.com/hp-microserver-n40l-build-and-bios-modification.html

Edited by Joe_Miner

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ikon

Joe_Miner has it exactly right; it's the peak start-up power draw that matters. BTW, almost all PSUs have 'head room', meaning they can, for a short period of time, handle loads greater than their rated capacity. This can often be useful for handling startup loads.

 

Some people will say you should never rely on the head room, and for cheaper power supplies I must say I would agree. However, I have talked over the years with electronic engineers who actually design this stuff and have been told numerous times that it's quite safe; that their designs allow for at least a 20% overdraw. That means a 150W PSU can handle at least 180W for a short period.

 

So, if you want to add an extra drive or 2 to your system, and you find that the total power draw adds up to a few watts more than the PSU is rated for, I personally wouldn't worry about it. The ongoing, non-startup, power draw is bound to be well within the PSU's rating.

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jsox

Darn! Went to pull the trigger and it was too late. Maybe next time.

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cskenney

Darn! Went to pull the trigger and it was too late. Maybe next time.

If you use the forums feature that allows you to follow the DEALS forum you can set your preferences to send you an immediate email any time anyone posts a new topic in our DEALS forum. That is one way to see posted deals before they expire and help increase your chance of snagging one of these Microservers when they are on sale.

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