Need opinion on Power Supply

raventerp

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Apr 21, 2012
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I'm putting together this system:

Asus P8Z77 V Pro
Core i5-2500k @ 4 Ghz
2 sticks of DDR3
Up to eight (8) WD Caviar black 7200RPM disks
Areca ARC-1222 pciX8 Raid controller
MSI NX8600GTS-T2D256EZ (transferred from old system)
Samsung 830 series 128GB SSD
Ceton Infinitv 4 pciX cabletuner card
About 2 80mm fans, of course mouse + keyboard, and occasionally 1 other USB device

I would use this system for video editing but rarely ever gaming (hence the low end graphics card)

When I use the online calculators it comes out around 450W. This seems impossibly low considering 8 power hungry hard drives but it usually breaks down to 150W for the disks and 300 for everything else. So I picked up the OCZ ModXstream 600W which is a modular psu for only $45 after rebate. Always wanted to try modular and love a deal.

Here's my decision: Should I stay with the OCZ, should I pull out the Antec Neo Eco 620c from my old system which I am stripping down (I do love the quietness of that PSU) or should I go for another PSU completely?


 
Solution
G
your set up is using 425 watts. the problem is you have 8 HDs (thats up to 80 watts itself!) but it not a good idea to go overboard on the wattage for a PSU. folks seem to overlook at idle it is better that a PSU has a +15% load so it doesn't get hot.

to "smallest" PSUs i found that has 8 stata connections:
OCZ ZS Series 550W 80PLUS Bronze $69.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817341047
Jonny Guru Review:
Reviews - OCZ ZS 550W
Rosewill HIVE Series HIVE-550 550W Continuous @40°C, 80 PLUS BRONZE $69.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182131
AnandTech Review:
Rosewill Hive 550W
the OCZ is $44.99 after mail-in rebate card but $3.99 Shipping
the Rosewll is free shipping...


you have a low end gpu so you won't need much power.a quality 550w like xfx core pro 550w is a great deal-
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013&Tpk=xfx%20550w
 
If you already have the Neo Eco 620W, then use it. It's a good quality PSU, pocket the extra money. If you really want the OCZ for the modular cable, then get the OCZ 500W...it's more than sufficient and costs $10 less after rebate.
 
G

Guest

Guest
your set up is using 425 watts. the problem is you have 8 HDs (thats up to 80 watts itself!) but it not a good idea to go overboard on the wattage for a PSU. folks seem to overlook at idle it is better that a PSU has a +15% load so it doesn't get hot.

to "smallest" PSUs i found that has 8 stata connections:
OCZ ZS Series 550W 80PLUS Bronze $69.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817341047
Jonny Guru Review:
Reviews - OCZ ZS 550W
Rosewill HIVE Series HIVE-550 550W Continuous @40°C, 80 PLUS BRONZE $69.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182131
AnandTech Review:
Rosewill Hive 550W
the OCZ is $44.99 after mail-in rebate card but $3.99 Shipping
the Rosewll is free shipping w/o a rebate.

EDIT: i just realized you need another sata power connection to the SSD making 9 total . .poop!
SeaSonic M12II 620 Bronze 620W $69.99 A BARGAIN!
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151095
SATA Power Connector 9

a little high for wattage but that is a DEAL!!
 
Solution
Like Silvune stated the number of connector's is the issue, not the amount of power.
Even a psu with 9 sata connectors ( need 10 if you're going to have an optical drive ) will have you using adapters, up to 3 depending on the case layout.
I made the mistake of ordering a NeoEco620 for a system in a LianLi PC A70 that ended up with a total of 11 drives, had to use 3 adapters, what mess.
The M12II reccomended by looniam is a good choice if you don't want to use adapters, because you can get extra modular sata cables to make up the difference
http://www.moddiy.com/products/PcCooler-Modular-PSU-5%252dPin-to-3-x-SATA-Sleeved-Cable-%2885cm%29.html
 

raventerp

Honorable
Apr 21, 2012
26
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10,530
I do have the molex-sata adapters so that isn't a big problem but the modular sleeved cable that delluser recommended would be nice.

I think I overestimated my needs because I read that 1) hard drives use a huge amount of power when they first spin up and 2) get at least 50-100w more than you need to allow room for expandability. That's why I was spec'ing well over 500w to be on the safe side. Probably not necessary though.

The seasonic does look nice. If I ever need an optical drive I can use a USB one. Also, I'm not set on an 8 disk RAID. It's taking a long time to tests these disks so I am thinking twice about it.
 

raventerp

Honorable
Apr 21, 2012
26
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10,530
I found the M12II open box for the same $70 price tag. It's slightly more ($10-20) than I wanted to spend and slightly more wattage (20-70) than I need to get, but otherwise it's perfect for my needs.