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PSU holding me back

post #1 of 4
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I have a feeling my PSU is crap and is what is holding me back on my overclocking. Its some kind of APower 550w PSU... (disregard my specs on the bottom because I was guessing on the PSU). It is a cheapo... the one rail only has 20amps to the 12v rail. I dont know what this all means but I believe it is definately holding me back. I'm going to re-iterate: I know crap all about PSU's. A single rail PSU with at least 25a for the 12v rail was reccomended to me... but I really have no clue.

I just spent over $350 on my pc in the past few weeks, but I was wondering if someone could recommend a PSU with a single rail @ at least 25amps for the 12v rail that won't break the bank. That is what was reccomended to me. Ebay is probably going to be my best bet, but right now i need some guidance on what to shop for. Thanks.
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My System
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Athlon 64 3500+ Venice Asus A8N-e XP Acer 17'' LCD 1280x1024 
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Old dell STICKY keyboard OCZ Modstream 520~620w Chenbro Old dell BALL mouse :D 
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post #2 of 4
Welcome to the forums!

I won't be the first here at OCN to tell you that a power supply is one of the most crucial parts of your rig, not something you want to skimp on. That said,
What's your budget? That would be the most important thing to give you some recommendations.

Quote:
I was wondering if someone could recommend a PSU with a single rail @ at least 25amps for the 12v rail
ATX power supplies have at least six rails, +12v, +5v, +3.3v, -12v, -5v, -3.3v (you might know this, but if not...it's helpful)

Some configurations have two 12v or more. Those tend to be more stable, btw.

Without knowing a budget, I would recommend the Sunbeam NUUO 550w.
The specs: +3.3V@28A, +5V@36A, +12V1@20A, +12V2@18A.

$83.50 @ Newegg. http://www.newegg.com/Product/Produc...82E16817709003

Hope that helps
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2x74GB-Raptors 1x250 GB WD XP Pro SP3 2 x ViewSonic VX922 (2ms) Saitek Eclipse 
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post #3 of 4
Just a thought... are you certain the PSU is it? I would think that even a so-so 590w would do it for your system... maybe your temps are getting too high with the stock cooling. Have you monitored the temps as you OC?
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Coolmaster
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i7 920 Asus Rampage II extreme Matrix GTX 285 6GB Corsair Dominator 
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post #4 of 4
do you keep tabs on the volts i have a 500W semi cheap psu that im volt modding as soon as i get a ride to radio shack today make sure the 3.3V and 5v lines are puting out at or more that rated if not mod it im moding mine because i hit the max voltage on my motherboard, i set the volts to 1.875V but it only puts 1.8volts. dont worry too much about the 12V if your just overclocking unless your harddrives aint working right
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