Personal computing discussed
Moderators: renee, SpotTheCat, Nemesis
HERETIC wrote:There are lot's of companies building great 700 to 1KWatt PSU's but they tend to cheap out too much
on their lower power units..........
...
Please avoid group regulated-Yesterdays child...................
bthylafh wrote:Your subject line nearly made me report this thread. Can you change it so it doesn't look so spammy?
HERETIC wrote:Good quality Japanese are generally good for several years-where some of the cheap Chinese are lucky to last two.
DPete27 wrote:No MOV, but from my understanding, you can circumvent this by simply plugging the power supply into a surge protector (can someone clarify?) which most computers are/should be IMO.
HERETIC wrote:I have a group regulated Corsair 450 Watt PSU (seasonic built) in another box that's over 5 years old-
would i buy same if available today-NO,there's much better available....................................
Flying Fox wrote:HERETIC wrote:I have a group regulated Corsair 450 Watt PSU (seasonic built) in another box that's over 5 years old-
would i buy same if available today-NO,there's much better available....................................
What is this "group regulated" thing that you keep repeating? Is there a difference between that and a "vanilla" Corsair unit?
just brew it! wrote:Flying Fox wrote:HERETIC wrote:I have a group regulated Corsair 450 Watt PSU (seasonic built) in another box that's over 5 years old-
would i buy same if available today-NO,there's much better available....................................
What is this "group regulated" thing that you keep repeating? Is there a difference between that and a "vanilla" Corsair unit?
A group regulated PSU does not have a separate independent feedback loop for each rail. The +12V and +5V are regulated together, which can lead to out-of-tolerance voltages under crossload conditions. E.g., if the +12V rail is asked to supply close to its rated maximum current, the power controller increases the PWM duty cycle to keep the +12V rail from sagging too much; but if the +5V rail is lightly loaded, this can cause the +5V rail to go out of spec to the high side.
Better PSUs have independent feedback loops and can adjust PWM duty cycle for each rail independently, to more accurately compensate for the load on each rail.
The Corsair CX (Builder Series) are group regulated.
Takeshi7 wrote:I recently bought this power supply. It's as affordable as they come, and it works for my VIA C3. That's high enough quality for me.
http://www.newegg.com/Product/Product.a ... 6817170014
derFunkenstein wrote:So jbi's explanation probably explains this, which does not bode well for my previous statement of confidence: http://www.hardocp.com/article/2015/01/ ... Svt6vnF98E
Once they loaded it to close to the 12v rail's max (63 amps max, they loaded it to 60) it would fail.
Takeshi7 wrote:I recently bought this power supply. It's as affordable as they come, and it works for my VIA C3. That's high enough quality for me.
http://www.newegg.com/Product/Product.a ... 6817170014
Chuckaluphagus wrote:Takeshi7 wrote:I recently bought this power supply. It's as affordable as they come, and it works for my VIA C3. That's high enough quality for me.
http://www.newegg.com/Product/Product.a ... 6817170014
Let's be honest here: eight AA batteries in series would be fine for a VIA C3 build.
(Ok, of course not really. Also, you're really running a C3? I've never actually heard of anyone using one in the wild.)
just brew it! wrote:HERETIC wrote:Good quality Japanese are generally good for several years-where some of the cheap Chinese are lucky to last two.
This was indeed true ~10 years ago. The vast majority of Chinese caps aren't *that* bad any more.
Captain Ned wrote:FWIW, the Corsair 520HX I purchased mid-2007 ran without a bleep 24/7/365 pushing a C2D 6600 @ 3.2 until I rebuilt the box last month. I would have kept it if its modularity was not so Molex-focused, but it was from 2007 and lacking in modern PCIe plugs.
I'm holding out on new GFX until the new spring styles are out, so at best I'm pulling 120W from my HX750i. It's more than I need, but it's the entry level to Corsair Link, so that's where I went.
anotherengineer wrote:Define 'affordable', one usually 'pays' for quality. I think my Seasonic 460W fanless platinum was about $135 w/o tax when I bought it.
As for low power psu's I agree, it would be nice if there were more 300W, 350W, and 400W good gold and platinum units available.