[Pc_Support] Appropriate PSU for Socket 754 and 6600GT AGP?

[Bryan J. Smith]

On Wed, 2005-08-17 at 17:18 -0400, Jason Boxman wrote:
> I'm looking at PSUs on newegg and, like cases, you have about 200 choices.  
> I'm focusing on the ones that actually have at least 10 reviews and 
> immediately discarding any that mention DoA or serious reliability issues.
> I am curious what would be adequate ratings for the 3.3, 5, and 12 rails?
> Should I buy a dual +12V rail PSU?  Few on newegg have any reviews at all, so 
> they're apparently not that popular yet.  The dual +12V PSUs I looked at 
> boasted lower +5V and +3.3V ratings, around say 20A, versus the single +12V 
> PSUs that generally have > 20A on those rails.

They are typically ATX 2.0.  ATX 1.0 and ATX 2.0 mainboards are designed
differently, with different voltage regulators based on the change in
what the power supply is providing.

> What's a reasonable efficiency level?
> I'm definitely going to get one with 24-pin ATX and SATA power connectors for 
> future expansion, so I want this to be a PSU I'll have for several years into 
> the future.  (The Socket 754 board I get probably won't have 24-pin, although 
> I haven't chosen a final candidate yet.)

I'd go cheap, but at least UL Listed.  Get a decent ATX 1.0 power supply
with a single +12V rail, one that gives you quite a bit on +12V so you
can handle the PS' Molex connector, while still getting quite a bit on
the +3.3V and +5V for the mainboard/CPU.


-- 
Bryan J. Smith     b.j.smith at ieee.org     http://thebs413.blogspot.com
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