The company that sells it can relabel the unit, thats why the CM extreme power 600W is actually a Seventeam 500W PSU, and because of that it falls flat just above 500W.

http://www.jonnyguru.com/PSU/eXtremePower600W/

Its a different story for the 430W extreme power. This one does deliver 430W.

http://www.jonnyguru.com/PSU/eXtremePower430W/

Hmm iGreen makes me think of CNC3

Btw where can get them now in the market, LYP?

Well said. Its recommended to have a slightly higher wattage rating than your PC's power consumption, around 20-30% more depending on your usage. Its because PSUs get less and less efficient as time goes by, mostly due to capacitor aging. As the PSU gets older, the capacitors get less and less efficient at filtering the voltage (especially when running close to the PSU's limit), and the voltage regulator circuits must work harder at keeping voltages accurate and stable. Eventually it gets to the point where the fluctuations are beyond what the voltage regulators can cope with and it starts to become noticable. For well designed PSUs, this is noticable only after a few years. Poorly designed PSUs (like those often manufacturered by our local Sdn Bhd ) can start showing signs of trouble even in a few months time.

This post has been edited by lohwenli: May 19 2007, 01:38 PM

wondering why they didnt use the solid capacitor used in mobo to be used in power supply circuit?..

hahaha most local psu (makers/seller) juz slap 500w a sticker on the psu even if it's only 200+w... coz some sellers like the idea of bigger number on the stickers but only cost like rm80??? i knew 1 local company brand of psu stick 480w but that psu is only 175w that sell with the casing... psu only they sell rm55??? kauw kauw leh...

how bout CM iGreen 600W??is it can be consider as a reliable psu??i got one n will pair wif my e6600 and 2x 8800gts 320mb...actually, juz grab the psu coz do not want 2 spend 2 much on psu...but finally realize that a good and reliable psu will last longer and provide a stable rig...will done some oc 2 the proc and gcard...wut the guru's think?

Wah, you could spend a fortune on two units of 8800GTS, but couldn't afford even a simple Silverstone OP650?

Get real dude.
CM, euwww..

It's not even in the tier list.

actually...im on thinking of grabing a new psu...future proof one..but till then,will use this psu for a while..

Not possible, as solid state capacitors don't provide the necessary capacitance and ESR values required by PSUs. You'll need lots of them to get the equivalent, and the required startup surge current will mean the PSU will take forever to warm up.

Harsh statement, but seriously yeah, you've really messed up your budgeting arc_archive. Btw, use the Power requirement calculator (link is on first post) to calculate how much power will your system needs. It works quite well, though the figure is already inflated from the start-every system that I entered there and also tested with a multimeter had a lower real-life power consumption than listed there (about 80% of what the calculator gave). The number that it gives you (even without filling in the parts on capacitor aging) is already enough for your system.

If you're wondering, the systems were doing all of this when I measured their power consumption
-1 instance of Prime95 for every thread/core the processor can handle
-Atitool artifact scan (even heavier video load than 3dmark)
-Everest Memory & Drive stress test
-burning a DVD on nero
would have wanted to add more to the list, but blimey, even the mouse doesn't really respond properly anymore. Nero managed to pull through only because it was set to real-time on the task manager.

this is the spec of acbel ipower 450W psu. what does it mean by max load? is it the stable, continuous ratng? why the peak is blank?
[attachmentid=234627]

max load in the pic there means that the max current that it can provide to all devices connected to it..

harsh but true one....but compare wif extreme power...is it better huh??is it enermax is the only reliable psu available??i believe that silverstone too can be categorized as reliable, but between both which one is better?

hehe..actually few brand also reliable-pls refer to the tier provided ..it is just depends on which u prefer more, its like nike and adidas, both also nice but if u prefer the nike name then u will buy nike stuff

The max power in this case refers to the maximum amount of power that the PSU can supply continuously. The peak power (which for some reason is left blank in this table) refers to the max the PSU can take for a short time without overloading.

For starters, none of the extreme power series has active PFC. While frankly, the power factor isn't important for most people, the circuit does give the PSU better capability to deal with voltage variations in the AC supply (hence the fact that APFC units don't need AC voltage selection switches). Also, efficiency is slightly lower, and the extreme power series voltage regulation is not as precise as those of better PSUs, it will vary when loaded close to its limit (but still within tolerable limits). Also, the ripple voltage is higher than those of better PSUs, which may affect how high you can overclock, though the motherboard's voltage regulators also affect this.

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Added on May 20, 2007, 8:39 pmSilverstone is very reliable. Jonnyguru's list is by no means complete; he says it himself.

This post has been edited by lohwenli: May 20 2007, 08:42 PM

since each 12v rail is about 20A, kinda high even compare with those high quality qual rail psu (if compare just the 12v rail, which is normally 18A only). so, can the acbel ipower psu support overclocking of e6300 together with stock 8800gts 320MB? in the past, ppl can use this psu to support overclocking of the DFI nf4 ultra-D kaw kaw, stable summore.

i doubt all those online psu calculator. if we calculate with 1 hdd + 1 odd + 5 fans with the above spec, less than 400w psu also enough.

This post has been edited by Skylinestar: May 20 2007, 11:38 PM

from wat i heard from online..min 26A is required for each rail for high end system...and it is better to have less rail ..

the online psu calculator is just a reference for us..not the exact value

Its reliable bro. And the number it gives is actually higher than real life. A P4 system that was calculated to take up 219W actually only took up 160W. And that wasn't the only system I measured. My current AM2 X2 system is calculated to take up 192W, but actually takes up 96W only.

tats why it is advisable for all pc user to check their hardware power comsuption with this calculator b4 purchasing new psu...just as a reference in case u bought too low power psu and also can cut down budjet as u know ur power limit then u no need buy so high power psu lor...