http://www.jonnyguru.com/SMPS_UL.htm

Is there any PSU with non active PFC but can do great in overclocking..?

Just to mention mushkin with no PFC,can it go for overclicking..?

CM extreme power 430w, Acbel E2 power are good. There are others, but I can't remember. Look out for these OEM PSU makers too, they're pretty decent while are cheaply priced, but most shops don't sell them-Enlight, Enhance, FSP/Fortron. These brands are good enough for low power PCs (<300W), any low-midrange single/dual core system (except Pentium 4/D) with a graphic card no higher than 7600/8600/X1600/2600 fits this.

Active PFC is only useful for people who's mains power fluctuates, and don't want to spend RM300 on a decent UPS. APFC allows a PSU to automatically adjust for voltage variations between 92-260V (estimate). The additional power efficiency is just a side bonus, as you will not even save RM100 on electricity bills unless you run 24/7 for a year or more, not even enough to justify the additional cost of an APFC vs a non-PFC unit. Power factor does not play much of a role in Malaysia yet, so don't sweat it.

i think rm60 avr is more than enuff.. the main advantage of UPS is to provide backup power in case of power loss like blackout etc..
while AVR is to regulate the voltage supplies to ur pc..

ahh ko ni sibuk jer
aku tanya dorang, bukan nak jawapan mcm ko nieh
JK onli arr tailou


hahaa.. there is newer pcie 8pin, pcie 2.0 i think

i mods my coolergiant already by adding 2 extra pin make it pcie 6pin+ 2pin & its working superbly, but i cant confirm wheter my psu can hold it or not

Just got myself a Corsair HX620W PSU with cable management. Understood and check from the net and confirm this unit is made by SEASONIC. Got very good review from most stress test website. And highly recommended by DFI.

http://www.diy-street.com/forum/showthread.php?t=10854

Surprising, the Enermax Liberty 620Watts had been strike off the recommended list, as it was claimed to be too many issue.

There is one question I like to ask SHAWTY here, regarding his FSP EPSILON 700W that he sold few months back, was it because it has Crucial ram compatibility issue.

I am having a FSP EPSILON 700W with some issue with my Crucial Ballistix Tracer. The ram is working fine on DFI Infinity P965-S Dark but not on my Gigabyte P35-DS4 with EPSILON 700W PSU. But using it with my Crucial Ballistix no problem, as I had two sets of these ram.

i got it from startec? beside czone.. they keep on asking me get muskin.. but i know corsair made from seasonic as my fren recommand and johnny guru recommended too.

My FSP Epsilon 700w is working fine with my Crucial Ballistix Tracer.
What kind of problem?

This post has been edited by kerryking: Nov 23 2007, 06:26 PM

Once I clear cmos with jumper. The system just refuse to boot, when then system is being power up with my FSP Epsilon 700W. Tried using only single stick of Crucial Ballistix Tracer 6400 on both my Gigabyte P35-DS4 as well as Biostar TP35D2-A7. Both motherboard with the FSP cannot boot with only beep sound indication ram problem.

But they both boot up fine with my Crucial Ballistix 6400 with FSP Epsilon 700w

These Crucial Ballistix Tracer 6400 however works fine without any problem with my DFI Infinity P965-S motherboard using Acbel E2 Power 510Watts.

Don't know whether the problem is caused by ripple issue from FSP PSU or what

Hmm weird.
so far so gd in my case..been using almost a yr now, my FSP runs gd with my ballistix tracer 8500 with my asus commando mobo.

I notice some of the PSU these days are already sleeved (out from factory). Anyone knows which of those are good ones?

Sleeved PSU nowdays are more for cosmetic purposes, and nothing more.

If you look and pc p & c psu, very high end stuff but the cables are not sleeve at all. Very expensive, even the packaging also look cheap.

Then on the other hand, we have modular cable power supply. These psu mostly has their main cable for motherboard soldered directly to the psu. While the rest of the cable are modular for connection like pcie, molex, and floppy power.

A good psu will depend on what you are looking for. Like budget, and the wattage that you need. Meaning this wholething boil down to price performance ratio together with reliability

i just got my acbel r8 700W PSU ... I notice a zzzzzzzz sound sometimes when its running ... Quite loud actually can hear with my speakers off... Is it okay?

Its a common thing for acbel PSUs and some other brands as well. Usually it comes from the transformer, and is usually normal though it might be irritating.

Actually have you guys tried or ever wondered if there is really a need for such high capacity PSU?

my PC P&C cables are sleeved XD


btw guys, not sure if you guys facing this, and im not sure if its something to do with single rail PSU, cuz on my SS OP650, and my PC P&C silencer750, everytime i turn on my computer my bios will revert to default settings and prompting new cpu installed (lolwut) and it will just hang there, i gotta press the reset button and everything will be back to normal. its a little irritating though at times when you wanna just turn on the power button and go piss or do something else while waiting for everything to boot up and load into windows.

my mobo is a asus commando, not sure if this got anything to do with it as well. entire specs are in my signature.

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Added on November 25, 2007, 4:44 pmpower requirement in high end systems, and/or power ripples/fluctuations reductions when it comes to overclocking etc.
and most importantly stability and a peace of mind that high end PSU's are less likely to fail (dont get me wrong, everything has a chance to fail depending on usage/your luck, even high end rm2k psu's will also fail.)

This post has been edited by Quazacolt: Nov 25 2007, 04:44 PM

It depends on your style of PC interest. If you keep upgrading and/or overclocking, you may quickly find yourself close to the limit of 400-600W power supplies; at which, the power supply will show decreased voltage & ripple regulation which may damage hardware over a long period of time. Also, power supplies age, and after a few years (depending on usage), they will show increased ripple at lower and lower wattages. So you would want a power supply that can provide at least 20% more power than your PC's usage so that you have a safety margin (30% or more is recommended, but >50% is way overkill).

I'm guessing your CPU voltage regulators are not powering up the CPU fast enough, so the CPU isn't recognised on the first boot run. Likely, since you're running a C2Q extreme which is overclocked.

any methods to prevent this? or it cannot be done due to oc'ing?

For a start, try booting up your system on stock settings, if it can boot without needing a reset then you have the answer. If it still doesn't work, try again on severely underclocked settings (set the lowest fsb and multiplier) if it still can't detect on first boot. If it can boot properly on stock and/or underclocked settings then it means your motherboard voltage regulators are not powering up fast enough. If on underclocked settings the problem is still there, then its probably some other problem which I'm not familiar with.

How about CM iGreen 500W? It is nice for OC?