my 4 years old psu kaput.also bring down my gc too.
now i buy R9 280.which PSU can feed up my gc.under RM250 budget.

FSP HEXA+ 550w. Rm 189. Price from Techview inclusive of GST

thank.im just order 550 raider for RM220.it have 5 years warranty.better psu i think.

Hi, how is the quality of superflower leadex silver 650w ?
any advice for this ?
Thx. ^.^

No idea - but considering it does not have Active PFC (note that the 80+ certification only applies on 240V) - you might just get a Seasonic S12II/M12II.

The Seasonic ones are much higher in quality (there are some actual reviews to such units) and they come with very high quality components too.

Mind to elaborate more on "note that the 80+ certification only applies on 240V" ?
Wish to learn some.
Thanks

hi, is 300w psu sufficient for xeon cpu and gtx750ti?

Try not to skimp on PSU. Due to the fact that if your PSU fails, it might short out your other hardware.

Can opt for FSP HEXA+ 550W - RM 189

the case requires sfx psu. which the cheapest would be 400+

thanks for your reply

It's funny when I see "DO NOT SKIMP" and at the same time recommending the lowest of the lowest of low in FSP's range of PSU.

A good 300W can handle Xeon CPU and 750 Ti easily.

A Xeon 1231V3 and 750 Ti on full load doesn't even touch 66% the capacity of what a good 300W can deliver and a good 300W

A Silverstone SFX 300W as this http://www.silverstonetek.com/product.php?pid=458 would still be of higher quality than the FSP Hexa+ 550W.

Thanks. Will try to hunt that psu

Hi all sifus like goldfries,

I have some confusion on power efficiency and power factor.

for the sake of example, if my PC is drawing 500Watts constantly, lets say my PSU is 80% efficiency, i will draw 600watts from AC then convert it into 500watts DC right. then if lets say my PSU power factor is only 0.5, then i will draw 1200 apparent power (in form of VA) from mains, though i will be only using 600watts as work done.

so in TNB point of view, TNB only charges for watts or work done, therefore only charge me the 600watts, and since residential rate doesnt have Power Factor surcharge, im done with that. but if im on commercial, the charging will be 600 watts + 3% surcharge (according to TNB, less than 0.85 PF will get 3% surcharge).

and in short, Power Efficiency is used for DC, while Power Factor is used for AC to gauge the efficiency

am i correct?

Thanks

This post has been edited by Christopher_LKL: Jan 29 2016, 10:32 AM

I'm no electrical engineer - perhaps lex could shed some light on this...

Does higher wattage psu draw more power from the wall? Or it depends on the overall load of the system?

Depends on the Load of the system

planning to get a R9 390 or gtx 970 upgrade

now only have fsp hexa 500w, can i know whats the min watt psu for r9 390 or gtx 970?

i dont need to spend that much if i get the gtx 970 right?

Asus P8Z77-M
4gb Corsair Value Ram x2
FSP HEXA 500w
HD6870
i7 3770k oc 4.3ghz
aocg2460pqu 1080p

Silverstone Releases Its First 80 PLUS Titanium Efficiency PSUs

http://www.tomshardware.com/news/silversto...psus,31201.html

Power efficiency is simply a measure of a real power in vs real power out.

Power factor isn't a draw of any real power, apparent power isn't a load, it is the constraint on the supply side that your load has brought.

1200 VA apparent load is where you load looks as though it were drawing 1200 real watts from the utility. It's like driving a car with a fat chick, you consume a lot more fuel and you make the car work harder, but the real amount of KM driven and people transported is the same vs you driving with a slim girl.

This post has been edited by empire23: Feb 22 2016, 06:51 PM

Hi guys, what do you think of this.

PSU: Cooler Master v650
CPU: AMD FX6350
MOBO: Gigabyte GA-970A-DS3P
GPU: R9 Nano

And I'm planning on adding another Gigabyte GV-N980G1 GAMING-4GD. Do you think the PSU is able to support the addition?

Why would you want to put a GTX980 alongside with a R9 Nano?

Anyway, it should work - since a 980 won't consume much power...