Extra storage

[hellboy]

Im going to build an extral enclosure for storage and fans, but im curious about what ill need for power supply.

What I am doing is putting 2 external hard drives and some fans, In a storage space that will contain of

http://www.newegg.com/Product/Product.asp?Item=N82E16817388002 Two of these but in future might add a third one. I wont be using the cases but just the board for the hard drive. Unless there is a way of buying just the boards anywhere.

http://www.newegg.com/Product/Product.asp?Item=N82E16822144423 Two of these but will add third one in future.

http://www.newegg.com/Product/Product.asp?Item=N82E16811999066 Two of these for cooling

http://www.newegg.com/Product/Product.asp?Item=N82E16811999122 One of these

http://www.newegg.com/Product/Product.asp?Item=N82E16811999137 And one of these
Any buddy have any ideas on how i can do this, or what power supply ill be able to use, My biggest proble so far is figuring it out how to get it to work for the external hard drives and have power leads to hook up the fans also.

[Cevinzol]

Are you planning on connecting these drives to a machine via USB or do you have an external SATA connection on the back already, if not you may want one of these 2 cards http://www.newegg.com/Product/ProductList.asp?N=2010010073&Submit=ENE&Subcategory=73&Description=sata+controller+card&Ntk=all and you'll probably need a backplane inside the external housing.
or you could also just build a slow machine and set it up as a server on a LAN. you could add a DVD burner or tape drive

[hellboy]

I plan on connecting these through the usb plug. Its mostly going to be used for my laptop. But also my desktop for transfering most my info and stuff back and forth.

[hellboy]

Heres a quick mook up





http://i11.photobucket.com/albums/a160/pioneer1976/project.jpg

[hellboy]

ill be using two of these instead of the external enclosures.

http://www.newegg.com/Product/Product.asp?Item=N82E16812156014

Now i still need to figure out a power supply. What wattage power supply would i need to run 3 hard drive and 3 fans.
Only starting with 2 hd and 3 fans but wil add 3rd hd in the future so want to make sure power supply will handle it.

[Cevinzol]

What wattage power supply would i need to run 3 hard drive and 3 fans. Ok I pulled the following from western Digital's page. Its for their Caviar SE16, 5000Gb, 7200rpm SATA drive. I just grabbed the first drive I saw and looked at the specs:

Power Dissipation
Read/Write 9.50 Watts
Idle 8.75 Watts
Standby 1.60 Watts
Sleep 1.50 Watts

Based on that I'd say you don't need much of a PSU and old 250 Watter should do just fine. Remeber HDDs only have 2 little motors in them (one drive motor and one stepper motor). They aren't the power hogs that CPU and GPUs are.

[Nagoshi]

You will need a way to actually turn your PSU on.

Let's say hard drives runs 1amp on the 12V line, it should take around 12W. so 12*3 = ~36W. And hmm, a 12V fan that will sucks 0.50amps for example, will take 6W. Three fans = ~18 watts. You would only need around 55-100W of power supply.

My guess would be an independant ~50-100W power supply with his own switch. I have one that I use with a CD drive that has play/change button, and I use it as a disk player via the headphone jack :)

Unlessy ou can figure a way to power your PSU, id say find one with 100W power and its own power switch (Not these PSUs with only a master switch on the rear, it won'T launch the PSU when you will turn it on)

[.Maleficus.]

You will need a way to actually turn your PSU on.

Could you just make a test power supply?

Cut the ATX cord, solder the green and black wires, and voila!

Might that work?

Maleficus

(BTW, if you do do that, read a proper guide, or you will probably use the wrong black wire.)

[DaveW]

(BTW, if you do do that, read a proper guide, or you will probably use the wrong black wire.)

Any black wire will do. They should all lead to ground-as long as you don't try and share the same ground between different signals you should be fine. (this would normally be fine anyway, but i'm not 100% certain.)

-Dave

[Nagoshi]

Could you just make a test power supply?

Cut the ATX cord, solder the green and black wires, and voila!

Might that work?

Maleficus

(BTW, if you do do that, read a proper guide, or you will probably use the wrong black wire.)
Might work that way... and you'd have the pre-installed SATA connectors.

[.Maleficus.]

Any black wire will do. They should all lead to ground-as long as you don't try and share the same ground between different signals you should be fine. (this would normally be fine anyway, but i'm not 100% certain.)

-Dave
Hmmm... In the guide I used, it said you can only use the black wire right next to the green one. I'll find a guide soon and post it.


Edit: Here (http://www.casemodgod.com/mod_test_psu.htm) is the guide I used.

[hellboy]

Cool thanks for all the replys, That guide would be good. I post pics of the psu when i find one. Im trying to find one really small.