It is currently Wed Apr 16, 2014 5:45 am

All times are UTC - 8 hours




Post new topic Reply to topic  [ 9 posts ] 
Author Message
 Post subject: S12 still viable?
PostPosted: Mon Mar 26, 2012 9:39 pm 
Offline

Joined: Mon May 15, 2006 12:24 pm
Posts: 303
Location: CA, USA
I've got a perfectly good, but 7 years old (though it hasn't been used much in the last 4 years) SeaSonic S12 500W and was wondering if I could use it in my next new PC build with Intel Core i5?


Top
 Profile  
 
 Post subject: Re: S12 still viable?
PostPosted: Tue Mar 27, 2012 12:59 am 
Offline
*Lifetime Patron*

Joined: Thu Feb 13, 2003 6:53 am
Posts: 1439
Location: Sweden
The S12 is a good PSU, I would use it. With a more modern PSU you would get better efficiency and the system would draw a bit less power, but not enough to justify getting a new unit imo.

_________________
Main: ASRock B85M-ITX | i3-4330 | 16GB DDR3 | Intel 520 120GB | HDPLEX H1-S | picoPSU | No moving parts | Idle 13.9W AC
HTPC: ASRock H81M-ITX | Pentium G3420 | 4GB DDR3 | X25-M G2 80GB | HDPLEX H1-S | picoPSU | No moving parts | Idle 11.2W AC
Gaming: Intel DH77EB | i5-3570K | GTX 760 | 16GB DDR3 | Intel 520 120GB | G-360 360W
Server: Intel DH77DF | i3-2100T | 4x3TB | picoPSU | Idle 24W AC


Top
 Profile  
 
 Post subject: Re: S12 still viable?
PostPosted: Tue Mar 27, 2012 1:50 pm 
Offline

Joined: Wed May 04, 2005 1:24 am
Posts: 198
Location: Finland
New units, like Super Flower Golden King 550W or an identical model from Kingwin are superior as they are semi-passive: in normal loads (<400W) they are 100% silent: the fan doesn't rotate at all.


Top
 Profile  
 
 Post subject: Re: S12 still viable?
PostPosted: Tue Mar 27, 2012 2:42 pm 
Offline
Moderator

Joined: Thu Oct 06, 2005 4:36 am
Posts: 4242
Location: Monterey Bay, CA
As it's an older ATX design, it's got split 12V rails that total to ~400W. So, good for up to any single gaming card build.

Upside to re-use:
- no $'s spent
- one less item getting recycled

Downside:
- lower efficiency at idle and load
- not as quiet as newer high efficiency designs

_________________
1080p Gaming build: i5-4670K, Mugen 4, MSI Z87-G45, MSI GTX 760 2GB Gaming, 8GB 1866 RAM, Samsung Evo 250GB, WD Red 2TB, Samsung DVD burner, Fractal Define R4, Antec True Quiet 140 (2 front + rear) case fans, Seasonic X-560. 35-40W idle, 45-55W video streaming, 170-200W WoW, 200-230W Rift, 318W stress test (Prime95 + Furmark)


Top
 Profile  
 
 Post subject: Re: S12 still viable?
PostPosted: Tue Mar 27, 2012 7:19 pm 
Offline

Joined: Mon May 15, 2006 12:24 pm
Posts: 303
Location: CA, USA
Thanks. That's kinda what I was thinking too. Adequate, but less efficient than a modern unit.


Top
 Profile  
 
 Post subject: Re: S12 still viable?
PostPosted: Wed Mar 28, 2012 7:49 am 
Offline

Joined: Thu May 03, 2007 3:58 am
Posts: 757
Location: Formosa
Aging might worry me if it were to use for GTX580 SLI. Otherwise, it should be fine for light use like single 6670.
Btw, my S12-430 is still running strong in my dad's PC. :wink:


Top
 Profile  
 
 Post subject: Re: S12 still viable?
PostPosted: Wed Mar 28, 2012 1:30 pm 
Offline

Joined: Mon May 15, 2006 12:24 pm
Posts: 303
Location: CA, USA
loimlo wrote:
Aging might worry me if it were to use for GTX580 SLI. Otherwise, it should be fine for light use like single 6670.
Btw, my S12-430 is still running strong in my dad's PC. :wink:


Thanks. Yeah... no... I had to Google both of those gfx cards because I didn't know what they were. :-)
So no, I'm not planning on using anything like that. In fact, I'm holding out for Ivy Bridge because I'd like to use the integrated HD 4000 graphics in that CPU.
Ivy Bridge is also supposed to use less power than Sandy Bridge. Though don't know whether any potential energy savings would be lost by using the S12 anyway.


Top
 Profile  
 
 Post subject: Re: S12 still viable?
PostPosted: Wed Mar 28, 2012 2:16 pm 
Offline
Moderator

Joined: Thu Oct 06, 2005 4:36 am
Posts: 4242
Location: Monterey Bay, CA
Efficiency loss - sorta depends on what you compare it to...an 80+ Gold or Platinum ATX PSU or a 120W Pico-PSU based solution...plus I don't know how far efficiency degrades on your S12 as you go below 65W DC. Might be in the 60%'s.

Comparing to the recently reviewed SS-T350TGM:
- If your system idles at ~40W DC, and assuming 65% efficiency for the S12, that's ~8W AC loss.
- Watching an H.264 movie might be 50W DC, and call it ~7.5W loss over the SS-350TGM.
- Heavy load of 100W leads to ~6% efficiency difference or 6W loss.
Worst case, call it 8W all the time. In my neck of the woods, that's ~$8/yr if you leave it on and idling all year.

_________________
1080p Gaming build: i5-4670K, Mugen 4, MSI Z87-G45, MSI GTX 760 2GB Gaming, 8GB 1866 RAM, Samsung Evo 250GB, WD Red 2TB, Samsung DVD burner, Fractal Define R4, Antec True Quiet 140 (2 front + rear) case fans, Seasonic X-560. 35-40W idle, 45-55W video streaming, 170-200W WoW, 200-230W Rift, 318W stress test (Prime95 + Furmark)


Top
 Profile  
 
 Post subject: Re: S12 still viable?
PostPosted: Sun Apr 08, 2012 1:27 am 
Offline

Joined: Thu May 03, 2007 3:58 am
Posts: 757
Location: Formosa
For comparison purpose:
I was a bit surprised to learn that efficiency drop is so large.
Noise-wise, S12 is ok. Efficiency-wise, it's no no. It's the least efficient PSU in the comparison.

System spec:
AMD 4850e 1G @ 0.85V
Gigabyte MA74GM-S2 rev 4.3
DDR2-667 2GBx2
Hitachi 3’5 500GB 7200RPM x1
80mm Fans x2 @ 5v
DVD burner x1

Idle power consumption, measured from the wall using Powerangel
Image


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group