PSU buying advise.

[Grimeire]

Hey all,

I am planning on upgrading my NAS with 3 additional HDDs the problem i have is that my PSU is only a 290w and all the PSU calculators are telling me i need about a 350-370w PSU.

I have no clue about these and all the ones i see recommended are in my mind expensive at over €100. The one i currently have is this so all it needs to have is a motherboard connection and the 4 pin CPU. It has a 8 pin motherboard connection but you can buy adapters for 24 to 8 pin.

all i care about it is that it has enough power to do the job. is as cheap as possible and is energy efficient.
I will buy an adapter for it to connect to the 8 pin motherboard connection.

Any help would be appreciated.

 

[turner brown]

this one have a high 12v rail and should do the job
https://www.scan.co.uk/products/500...ire-single-rail-40a-plus12v-120mm-fan-atx-psu

 

[chookey]

I've just been looking at the specs for a WD Red Nas hard drive and the power consumption is really low.

Power Consumption

3.3 Watt (read) ¦ 3.3 Watt (write) ¦ 2.3 Watt (idle) ¦ 0.4 Watt (sleep)

That was for a 1Tb drive but wouldn't really differ much between capacities. So 3 extra drives may only put another 10W of strain on your power supply .
If you try and draw too much power out of your psu it will shut down. No damage should occur to any components or motherboard.

 

[Grimeire]

I've just been looking at the specs for a WD Red Nas hard drive and the power consumption is really low.

Power Consumption

3.3 Watt (read) ¦ 3.3 Watt (write) ¦ 2.3 Watt (idle) ¦ 0.4 Watt (sleep)

That was for a 1Tb drive but wouldn't really differ much between capacities. So 3 extra drives may only put another 10W of strain on your power supply .

If you try and draw too much power out of your psu it will shut down. No damage should occur to any components or motherboard.

From what I can tell on sites 3w is at idle when they are reading and writing it is double that. Since it is a raid array the data is spread across them all they all will be allq going when reading/writing large files and as this is my torrent server that is on 24/7 these are seeding night and day so that would mean they are pretty much being read from all the time.

I would chance it but as the new vdev is linked to the other in a pool it means the whole pool would go down if I just disconnect the additional disks if I do run into issues while I wait for the new PSU. I don't want to create a new pool as this would result in a lot more work for me instead of adding to the existing pool.

I should add that my 290w is probably already at its limits with 4 * 3.5 hdds, 1 nmve SSD, 1 SSDs, 1 * 2.5 HDD, a PCIe raid controller, a dual PCIe ethernet card and the Xeon 1225 V3 processor. My Nas is virtualized in esxi so if I have power issues my whole network goes down as I have my router, DNS, and DHCP servers all virtualized on this machine.

 

[Grimeire]

this one have a high 12v rail and should do the job
https://www.scan.co.uk/products/500...ire-single-rail-40a-plus12v-120mm-fan-atx-psu

this is probably a stupid question but does that PSU have the correct connection for my board as i see it has "1 x 4-pin FDD Power" or do i need to buy an adapter?
I also need a 8025 fan like this with a molex connector since the PSU has molex connections or one or should i be getting a different connector type like one of these?

This is a server so it just needs to do a job and be quiet and doesn't have to look pretty.

 

[turner brown]

this adaptor will do the board
24 to 8 Pin ATX Dell Optiplex 3020 7020 Power Supply: Amazon.co.uk: Electronics
the molex fan will be fine

 

[Grimeire]

this adaptor will do the board
24 to 8 Pin ATX Dell Optiplex 3020 7020 Power Supply: Amazon.co.uk: Electronics
the molex fan will be fine

Thanks a lot I just got it.