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It's this good enough for my NAS?

post #1 of 6
Thread Starter 
My NAS server specs:

Athlon x2 5200
M2n32-Sli
2gb ram
Bfg 7600 gpu
7 fans (most are stock case fans from antec 1200)
2x IDE drives
4x Samsung 2tb F4 sata drives


Later I plan to add a perc 5/i and 4 more 2tb drives.

Will this psu be good enough?

Ps The only reason I'm looking at bb is because I gotta 25 gift card for Xmas for bb and I'm trying to find something to spend it on.

Link
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Web Surfer
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*Retired* Htpc
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post #2 of 6
What're you using? FreeNAS? I think it's more than enough. And you have to realize that HDD's don't take up much power.
post #3 of 6
Thermaltake TR2/TR2 RX units suck.
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post #4 of 6
Thread Starter 
Quote:
Originally Posted by mbudden View Post
What're you using? FreeNAS? I think it's more than enough. And you have to realize that HDD's don't take up much power.
Yes I'll be using FreeNAS. I guess I've just read a few too many psu horror stories on this forum.


Thanks

Edit:


Quote:
Originally Posted by Confessed View Post
Thermaltake TR2/TR2 RX units suck.
Thanks

Off topic
Yes, my favorite. Mixed results/answers.
Edited by XxG3nexX - 1/8/11 at 5:39pm
Web Surfer
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Web Surfer
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*Retired* Htpc
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Core i7 920 Rampage III Extreme XFX 5770 16GB (1600) 
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Optical DriveOSPowerCase
Samsung Blu-Ray SH-B083L/BSBP Win 7 x64 and Xbmc Antec 550w Silver Stone GD05B 
CPUGraphicsRAMHard Drive
Intel Core i7 2.0GHz Intel HD Graphics 3000 + AMD Radeon HD 6490M 4GB 1066 Memory Intel x-25m 
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post #5 of 6
Definitive no for that unit. It's an overrated HEC 350W piece of trash. Fine for someone with a typical media PC, dual core with low end graphics and one or two HDDs.


The problem with a NAS like this is that all those hard drives incur an enormous load when the disks spin up at start, 15-35W of inductive load per disk. We're going to be talking about conservatively 160W of +12V inductive load *just* for the HDDs, all at once, plus the +12V load from the mobo, CPU, GPU, fans, and that RAID card. Probably 250W of +12V load at POST, which is close to the maximum that PSU can provide, and all that load is going to be demanded from that unit in a period of 1-2 seconds, lasting for at least 5 seconds. Plus the +5V and +3.3V load. You're going to be demanding 300W from a crappy 350W PSU, starting dead cold, in a period of a couple seconds.

You'll be lucky if the system even starts with all that, and if you're very unlucky something might blow up (not an exaggeration).



Now, what WOULD help is if your motherboard or RAID card support staggered spin-up, so that the HDD spin-up load is distributed over several seconds, rather than being incurred all at once.

However, I'd still recommend a better power supply, the TR2 just won't stand up to that abuse. Assuming you don't have staggered spin-up and that the system manages to start at all, at the very least every POST cycle is going to take weeks off the PSU's lifespan--and TR2s don't usually last more than a year or three to begin with.




Honestly, I'd suggest a high quality 500W+ unit, just to lessen the impact of the massive start-up load, even though once the system gets going you're not going to be using more than 200W at peak.
post #6 of 6
Thread Starter 
Quote:
Originally Posted by Phaedrus2129 View Post
Definitive no for that unit. It's an overrated HEC 350W piece of trash. Fine for someone with a typical media PC, dual core with low end graphics and one or two HDDs.


The problem with a NAS like this is that all those hard drives incur an enormous load when the disks spin up at start, 15-35W of inductive load per disk. We're going to be talking about conservatively 160W of +12V inductive load *just* for the HDDs, all at once, plus the +12V load from the mobo, CPU, GPU, fans, and that RAID card. Probably 250W of +12V load at POST, which is close to the maximum that PSU can provide, and all that load is going to be demanded from that unit in a period of 1-2 seconds, lasting for at least 5 seconds. Plus the +5V and +3.3V load. You're going to be demanding 300W from a crappy 350W PSU, starting dead cold, in a period of a couple seconds.

You'll be lucky if the system even starts with all that, and if you're very unlucky something might blow up (not an exaggeration).



Now, what WOULD help is if your motherboard or RAID card support staggered spin-up, so that the HDD spin-up load is distributed over several seconds, rather than being incurred all at once.

However, I'd still recommend a better power supply, the TR2 just won't stand up to that abuse. Assuming you don't have staggered spin-up and that the system manages to start at all, at the very least every POST cycle is going to take weeks off the PSU's lifespan--and TR2s don't usually last more than a year or three to begin with.




Honestly, I'd suggest a high quality 500W+ unit, just to lessen the impact of the massive start-up load, even though once the system gets going you're not going to be using more than 200W at peak.
Thanks a bunch for the answer and explanation.
Web Surfer
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*Retired* Htpc
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MacBook Pro
(13 items)
 
CPUMotherboardGraphicsRAM
Core i7 920 Rampage III Extreme XFX 5770 16GB (1600) 
Hard DriveOptical DriveOSMonitor
Samsung 830 256GB Lite-On 20A1L Win 7 x64 Ultimate ASUS VE278Q 
KeyboardPowerCaseMouse
Das Ultimate + G13 Corsair Hx 1000 Corsair 800D Razer Mamba 
Mouse Pad
Razer Destructor 
CPUMotherboardRAMHard Drive
i3 530 Gigabyte GA-H55M-UD2H Corsair XMS3 4GB (2 X 2GB) 1333Mhz 80Gb Seagate 7200.10 
Optical DriveOSPowerCase
Samsung Blu-Ray SH-B083L/BSBP Win 7 x64 and Xbmc Antec 550w Silver Stone GD05B 
CPUGraphicsRAMHard Drive
Intel Core i7 2.0GHz Intel HD Graphics 3000 + AMD Radeon HD 6490M 4GB 1066 Memory Intel x-25m 
OSMonitorCaseMouse
Osx 10.6.6 1400x900 Smooth and Sexy magic mouse 
  hide details  
Reply
Web Surfer
(13 items)
 
*Retired* Htpc
(13 items)
 
MacBook Pro
(13 items)
 
CPUMotherboardGraphicsRAM
Core i7 920 Rampage III Extreme XFX 5770 16GB (1600) 
Hard DriveOptical DriveOSMonitor
Samsung 830 256GB Lite-On 20A1L Win 7 x64 Ultimate ASUS VE278Q 
KeyboardPowerCaseMouse
Das Ultimate + G13 Corsair Hx 1000 Corsair 800D Razer Mamba 
Mouse Pad
Razer Destructor 
CPUMotherboardRAMHard Drive
i3 530 Gigabyte GA-H55M-UD2H Corsair XMS3 4GB (2 X 2GB) 1333Mhz 80Gb Seagate 7200.10 
Optical DriveOSPowerCase
Samsung Blu-Ray SH-B083L/BSBP Win 7 x64 and Xbmc Antec 550w Silver Stone GD05B 
CPUGraphicsRAMHard Drive
Intel Core i7 2.0GHz Intel HD Graphics 3000 + AMD Radeon HD 6490M 4GB 1066 Memory Intel x-25m 
OSMonitorCaseMouse
Osx 10.6.6 1400x900 Smooth and Sexy magic mouse 
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