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Choosing The Right PSU, Discussions about power supply units.
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cardin
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 Jun 15 2011, 10:10 PM
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hi guyz i wan to ask some questions here...
what if?
my system is using 300W
and i use:
i) 500W PSU with 80 plus rated
ii) 400W PSU with 80 plus rated
does it mean that if i choose option no (i) i'll be using more power (high electricity) because of higher power output that can be produced by 500W psu while my system requires only 300W and does it mean that if i use 400W psu instead my electricity consumption will be lesser?
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cardin
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Jun 17 2011, 12:40 AM
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QUOTE(TechnoG @ Jun 16 2011, 07:20 PM)
Added on June 16, 2011, 7:22 pmtheoretically, yes. But if your usage doesn't even hit 500W, and won't even take in that much electricity, then it doesn't makes sense. If you say that it'll pull 500W from the socket, then where the extra electricity go? heaven?  thanks for yr reply...  actually im confuse whether to take silverstone 400W or silverstone 500W...  i heard both are good...just want to know which one will save me more on electricity bills n i do not really care how much it will cost me as far as i will be able to save on my electricity bills with my system requires only 300W (no OC) and im not planning to use high end gc just mid range gc will be nice for me... |
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cardin
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Jun 17 2011, 07:05 PM
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QUOTE(TDUEnthusiast @ Jun 17 2011, 01:20 PM) No no no no no. Even if you got a 500W or a 400W power supply, if 300W is all your system needs then that's what it will actually use. The power supply will supply power according how much the system requires and not e.g 400W all the time if the total power capacity of that particular power supply is 400W. A power supply's rating is stated on the power supply itself and the box to indicate the power that it can supply up to ( for good power supplies they can usually be stressed more than what the manufacturer says, albeit not recommended ), not indicating that it supplies that amount of power 24/7. Anyway, you'll get more savings on your electrical bill on with a 500W power supply compared to a 400W power supply as power supplies usually have the best efficiency at around 45% ~ 65% of load, unless the 400W power supply is an 80 Plus certified unit ( meaning that its efficiency is guaranteed to be at least 80% up to its rated power e.g 400W ) and the 500W is not. thanks for your reply sifu..  that is the answer that im looking for...  |
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cardin
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Jun 23 2011, 09:05 AM
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QUOTE(NoobHacker @ Jun 22 2011, 05:06 PM) i mean trustable is, will it fire or something?? btw i don't need 600W just buy higher for safe because it semi cap ayam... its too subjective to determine whether cap ayam or branded one will get fire first..well, the chances is still there it depends on your luck and your usage too...a good brand will give u better in terms of warranty coverage and after sale service compared to cap ayam and of course quality (not to mention defect as out of 100 of production surely there will be one, two or maybe more defect products) juz my 2 cents |
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cardin
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Jul 3 2011, 01:15 PM
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anyone using cooler master silent pro M500? im looking for new PSU...my budget is around RM200-300...or any other suggestion for me? prefer silent operation, min 450W and must have 80plus certified...
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cardin
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Jul 3 2011, 07:34 PM
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QUOTE(TDUEnthusiast @ Jul 3 2011, 02:00 PM) You can consider the Silverstone Strider Essential 500W for RM199. An alternative would be the Corsair Gaming Series 600W power supply for RM299. Your system's power consumption is estimated to be around 250W or so, so with a 500W power supply you should have it running at close to its best efficiency since it's being half loaded. Most power supplies have the best efficiency at half load. You can go with the Corsair Gaming Series 600W power supply if you intend to use the system for a long time and plan to upgrade in the future. thanks for your suggestion i think i'll go for silversone strider essential 500W...it will give me more value for money i guess... TDUEnthusiast, mind to share where did you quote the price for silverstone strider essential 500W at RM199? i've checked out most of LY Plaza pricelist is at RM230++...  |
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cardin
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Jul 3 2011, 08:23 PM
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QUOTE(TDUEnthusiast @ Jul 3 2011, 07:57 PM)  . It looks like the price has increased for that power supply. Anyway, you can get it for RM219 from Viewnet. thanks.. anyway i like your review on "cpu coolers reviewed" i think im going to get the hyper 212+ soon...(sorry mod im oot here...  ) This post has been edited by cardin: Jul 3 2011, 08:23 PM |
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cardin
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Jul 5 2011, 09:13 AM
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guys im in dilemma now..haha
did some searching and found out that actually there are so many choices psu for me...help me to re-choose (re-budgeting) the best one that suit my needs:-
80+ certified
silent operation
RM300 and below
500W
1. sea sonic 500W silence pro 80
--> SS-500E
--> RM199
--> 80+ bronze
--> 8cm fan (is it better than 12cm fan? noise, temperature control, etc)
2. silverstone strider essential 500W
--> SST-ST50F-ES
--> RM219
--> 80+
--> 12cm fan
3. coarsair 500W builder series
--> CMPSU-500CXV
--> RM219
--> 80+
--> 12cm fan
4. gigabyte power rock 500W
--> GE-N500A-C
--> RM179
--> 80+
--> 12cm fan
5. acbel ipower 500W
--> not sure what model
--> RM229(cycom LY plaza)
--> 80+ (85% efficiency?)
--> ?cm fan
sea sonic, gigabyte and acbel seems among the best value for money but how about the quality? any comment?
how about trusted brand?
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cardin
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Jul 6 2011, 03:08 AM
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QUOTE(TDUEnthusiast @ Jul 5 2011, 03:04 PM) Seasonic is one of the best power supply manufacturer in the industry. Their power supplies are widely used and re-badged by other brands e.g Corsair and PC Power & Cooling to be sold as their own. Gigabyte's also fine but their power supply list hasn't been updated for quite some time, and most of the shops are still holding old stocks, so you're better off going with other brands e.g Seasonic. As for AcBEL, their lower-end power supplies isn't exactly commendable while their high-end power supplies are pretty good, albeit not the best. From the power supply list that you have gotten, your priority would be to get either a Seasonic 500W / Corsair 500W or a Silverstone 500W power supply, while the other two PSUs should be left as an alternative option. As for your question on the cooling fan, a 120MM fan is definitely better than an 80MM fan as the former does not have to spin as fast as the latter to generate the same amount of air, therefore reducing noise . But if the smaller fan has a good design then it's also possible that it will be better than a 120MM fan of poor quality. hurm... looking at my power logic now with 80mm fan (just like an aircraft jet engine at full throttle  ) i think it would be better to play safe by choosing either the silverstone essential 500W or corsair 500W builder series...and for that i've made a comparison between the efficiency of both psu (referring to this site --> Ecos plug load solutions ) the silverstone seems to be more efficient than corsair...so final conclusion i'll stick with the first choice which is the silverstone essential 500W...thanks a lot... really appreciate your help |
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cardin
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Jul 6 2011, 05:43 AM
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QUOTE(fared isa @ Jul 6 2011, 04:28 AM) hi guys, i need to ask for ur opinion... i just built my rig yesterday at low yat plaza... have some difficulty in looking some of the spec, especially psu : gigabyte odin 550watt... so i settle down with fsp hexa 500watt... this is my full specs : -i5-2400 -intel DH67CL-B3 -1T WD blue hdd -sapphire 5850 -lite-on dvd-drive -4gb KiNGSTON ram -CM elite 430 -FSP Hexa 500watt is it FSP Hexa 500watts ok and fit with my pc requirement? because Viewnet guy told me that I need at least 550watts psu for my specs... thanks... using the power calculator your system power consumption is roughly around 350W...i guess 500W power supply should be fine but i will say it is just so so (on par)... in order for your PSU to run at maximum efficiency, u will need a PSU that can provide u at least 100% more from your total power consumption (theoretically 350W plus additional 350W so it is suppose to be 700W. normally a good power supply can provide extra 100W from the rated power meaning that if u have 600W the psu can be pushed up to 700W -correct me if im wrong- ) most of the PSU is rated at maximum efficiency when the load is about 50%...no wonder that guy recommend u to have at least 550W PSU just to ensure that your PSU will not struggle to supply at 100% power at all time in order to achieve the maximum level of efficiency of the PSU... This post has been edited by cardin: Jul 6 2011, 05:48 AM |
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cardin
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Jul 7 2011, 10:58 AM
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QUOTE(kuekwee @ Jul 7 2011, 10:28 AM) Question here, my setup required 475w at peak. So i need to get 900w psu? I'm getting 15 2500, 2x 5850, 8gb ram, SSD and HDD. No OC. not necessary i guess...the 900W psu will be needed if u want your psu to run at maximum efficiency but again it depends on the type of the psu itself...different psu will have different level of efficiency at different level of load...u may check your psu efficiency at Ecos Plug Load Solutionsbut most of them will run at maximum efficiency when the load is about 50%...since u r running crossfire i guess 600W would be the minimum (safe point) i guess...juz my 2 cents... |
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cardin
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Jul 15 2011, 11:34 AM
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QUOTE(lingloong @ Jul 14 2011, 05:40 PM) FSP HEXA 400/500W is very good spec on the paper & "drooling"  with it's current offer/selling price. Saw a lot recommend them in this topic.
But IMO, after building some rig for my customer, I notice few flaws on this model. I guess that's justified the price / product offered. Not to "boikot" them but only want to express my opinion and any HEXA 400/500W user can share your view too
1. 4+4pin cable for motherboard is shorter than other brand PSU, it's impossible to route from the back of the motherboard for neat cable management. Try on the CM Elite 430, Thermaltake V3 & Aerocool VS-9, all phailed 
Same apply to it's 24pin
2. Cable is not nicely sleeved, make it look like cheapo PSU. And not all cable is sleeved
3. And this PSU kinda light, again make it feel "kinda cheapo" or "cap ayam". It's lot lighter than other model like Seasonic, CM, SST, Corsair or Acbel @ 500W range models. Normally good PSU you can feel it's weight as good quality parts ect it's transformer, the heavier the better. The terms is like gold, "lagi berat, lagi best". It's more like the build "feel" solid and "ada UMPH!"
~ correct me if I'm wrong, maybe new technology from FSP in PSU can produce good quality PSU with light stuff 
4. Power cable NOT included in package
For system builder and personal preference, my 1st choice will be Corsair CX500, 2nd will be Seasonic SP 500W & 3rd will be SST ST50F-ES if ya all looking for solid 500W PSU in term of quality, features, build & price/performance. All 3 models price range RM199-RM225 if you survey around garage sale or lowyat plaza
Suppose Seasonic S12II-520W will be my all time favorite/recommendation but as u guys know, this PSU is not avaialble in our market anymore  actually i got extra budget from rm300 n below to RM350 n below...  how about SeaSonic X560 560W 80Plus Gold its only RM350!! seems to be a good deal... what do you think guyz |
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