It is currently Thu Nov 20, 2014 7:22 pm

All times are UTC - 8 hours




Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: Any disadvantage to a larger power supply.
PostPosted: Wed Mar 27, 2013 4:18 pm 
Offline

Joined: Fri Mar 15, 2013 4:50 am
Posts: 6
I was planning on purchasing the Kingwin LZP-550 for my gaming machine and I saw that newegg has the LZP-850 on sale for cheaper than the 550. Would there be any disadvantage to getting the larger PSU? Not really the best when it comes to electricity, would it draw more power/create more heat? Or would it just depend on what the system demands?


Top
 Profile  
 
 Post subject: Re: Any disadvantage to a larger power supply.
PostPosted: Wed Mar 27, 2013 7:29 pm 
Offline
Moderator

Joined: Thu Oct 06, 2005 4:36 am
Posts: 4717
Location: Monterey Bay, CA
The higher wattage PSU may be less efficient at your idle/low load levels than the lower wattage one.

An extreme example LZP-550 vs LZP-1000:
Power lost as heat vs load @ low load to 90W for the 550W is 7-8W, for the 1000W it's 14W
At 200W load, the LZP-550 has 13W of heat loss, the 1000W uses 15W
At 300W load, they are both around 21W.
Above 300W, the LZP-1050 is more efficient than the 550W.

Figure the LZP-850 is somewhere between those two.

_________________
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  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 2 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