PSU choice - is this GOOD?!

[gustie]

http://www.aria.co.uk/Products/Compo...roductId=27381


been doing some thinking on new PSU

is this going to be stable voltage? is this a good PSU?

the one i have now fluctuates too much

[370forlife]

Re: PSU choice - is this GOOD?!

PC power and cooling is always a good choice. They have industry leading voltage stability.

[Scenic]

Re: PSU choice - is this GOOD?!

i still don't trust PCP&C... dunno why...

i'd go for the Corsair HX520 V2 instead (Seasonic OEM)

allthough it's "a little bit" overkill for that sys in your sig..
i'm running a XP3000+ on a nForce2 board (Asus A7N8X) with 1,5GB RAM & a FX5900 Ultra on a 300W Fortron Source lol

[momaka]

Re: PSU choice - is this GOOD?!

Is that a good PSU? - yes it is. But I wouldn't recommend buying it for the system that's in your sig. Socket 462/A are +5v based which means the CPU gets its voltage from the 5v line. New computers, as in P4 class and newer pull juice from the 12v line.
A Sparkle PSU (Power Q series) will be much more proper for your system. 250-300 watts should suffice.

[jpdoe]

Re: PSU choice - is this GOOD?!

I've seen several socket A motherboards with the 4 pin Pentium4 PSU connector. That would make them 12v based.

[Scenic]

Re: PSU choice - is this GOOD?!

i just checked that.. this board does have a P4 connector...

http://www.firingsquad.com/hardware/.../images/01.JPG

but still... 520W for the Corsair or 610W for the PCP&C is just overkill for the sys in his sig... o.O

[zandrax]

Re: PSU choice - is this GOOD?!

Jpdoe is right: the Lanparty NF2 Ultra B has a P4 connector, so it's 12 V based and any recent, good psu will work.
I'm with Scenic: PC P&C is good but uses crap caps (you pay an above average price for the brand, not for premium components) while the Corsair HX520 is a Seasonic design with premium caps for the same amount of money. I'd have suggested a less powerful (and cheaper) psu too since anything above 300-350 W is an overkill, but the shop offers only a narrow choice: the Corsair CX400 is nice but secondaries are Teapos , IIRC OCZ psus are manifactured by FSP (again Teapos, OSTs and C[r]apXons), I don't trust Thermaltake because every product is different from others (the number of OEMs involved and wide range of quality in TT's products amaze me) and I can't spot the VX450 or another known product usually available at about £45-50. Pity.

Zandrax

Edit: Scenic caught me

[RJARRRPCGP]

Re: PSU choice - is this GOOD?!

The Asus A7N8X family is +5V-based.

[gustie]

Re: PSU choice - is this GOOD?!

thanks

i used a PSU calculator to weigh up my next build...

so the 600W will be not wasted as i would transfer it into a new system eventually


ijust want a good solid PSU that could be "futureproof" ( i hate that term lol)

[PCBONEZ]

Re: PSU choice - is this GOOD?!

The Intel Platform Design Guide for the i810 chipset 'recommended' that CPU power come from +12v but the 4-pin "P4" plug wasn't required yet.
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Most manufacturers left CPU power on +5v because they wanted their boards to be compatible with older power supplies.
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They didn't want to have to say say "If you upgrade to *OUR* P3 board then you *HAVE* to buy a new power supply too." ,,, when motherboards from other manufacturers didn't have that requirement.
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Though I don't personally know of any, it's quite possible P3 boards exist that power CPU from +12v. If there are they still wouldn't likely have the "P4 plug".
-

I imagine the point of that transition on the AMD side was just as foggy with manufacturers holding off on switching to +12v until PSU's with the plug were more common.

My reference: See figure 4-1 in this.

[File is too big to attach.]

.

[PCBONEZ]

Re: PSU choice - is this GOOD?!

In the drawing what I was talking about look at where VRM power comes from.~~~

There is another interesting fact hidden in that drawing.
Look at RAM power.
It comes from both +5v and +5vsb via the "5v Dual Switch" and "3.3vsb Regulator."
-
That's how bad caps in +5v or +5vsb can cause RAM problems.

[kc8adu]

Re: PSU choice - is this GOOD?!

In the drawing what I was talking about look at where VRM power comes from.~~~

There is another interesting fact hidden in that drawing.
Look at RAM power.
It comes from both +5v and +5vsb via the "5v Dual Switch" and "3.3vsb Regulator."
-
That's how bad caps in +5v or +5vsb can cause RAM problems.

another good one is the abit vp6.
rather than get +3.3 from the psu for nb and vdimm they buck down from +12.
maybe they wanted better regulation than the psu's of the day offered?