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 Posted: Tue, 2nd Nov 2010 06:19 Post subject: BFG power supplies |
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Are they any good?
I have a BFG EX-1200W Power Supply coming in (i didn't order it..long story). Deciding whether to sell it and keep my Corsair 750TX OR sell my Corsair 750TX and keep the BFG
ASUS Maximus XII Formula | Core i9 10900k @ 5.2Ghz | 32GB G.Skill DDR4 4200Mhz | EVGA RTX 3080 Ti FTW3 Ultra Hydro Copper | ASUS ROG PG35VQ
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| Posted: Tue, 2nd Nov 2010 06:53 Post subject: |
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Well unless you have a lot of watercooling stuff and hardware to power, having that 1200 won't be very efficient. Stick with the corsairs and make some extra money.
And ya, BFG are alright, put one in my friends computer cause she needed a new PSU in a hurry.
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Werelds
Special Little Man
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Location: 0100111001001100
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| Posted: Tue, 2nd Nov 2010 08:50 Post subject: |
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Yeah 1200W is total overkill, I'd just sell it to some fuckwit who doesn't know that 
They're decent enough PSUs, but nothing particularly special.
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| Posted: Tue, 2nd Nov 2010 09:51 Post subject: |
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wtf listen to you all know jack about power consumption lol's
TC your better off keeping the 1200w as long as its got a good rail system on it.. you wont need anything else in a long time if its at all a good well made 1200w psu..
Its like someone trying to tell me to sell my enermax one and buy something with half the ability, oh and dont worry about bills with the draws off it, here its about 11pence a day with the TV on 2 screens for pc, lights and radio in background, Fridge and freezer on.
Sounds more to me like they would all like a bigger psu and dont like you having one for free even lol..
get rid of it hahah im so laughing efficiency is about being able to run electronics without any stress, feeding the voltage off rails that dont share etc, just cause you will have room to breath on the psu dont mean its not efficient lol, it means your hardware is more likely to be less stressed again and that == to less component level wear. Especially if your main board and cards etc are being made by dodgy taiwan peeps using shitty caps.
Enjoy your beasty psu. Oh if it fits in your case
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JBeckman
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Werelds
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| Posted: Tue, 2nd Nov 2010 14:22 Post subject: |
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@ moose: you do realise that even a system with 2xGTX 480 on an i7-980X all overclocked won't even reach 1 KW?
Also, PSUs get horribly ineffecient at loads under 20% or so; in this case that would be at any load under 240W, do you have any idea how fucking much that is? In general, a modern system sits under 120W when just doing some basic desktop shit like browsing the web. Your videocard will be in its 2D clocks and not doing any work, and your CPU will be pretty much idle. So you may be needing 75W, but you'll actually be drawing 130 for example, and the extra heat that comes with it. You're the clueless one here, efficiency has fuckall to do with being able to run the electronics without stress. A PSU that's loaded for 50% will last longer than the exact same unit at 5% load.
I suggested that he'd sell it because he'll get more money from selling that than he will from selling his Corsair. What is the better option, use a PSU which you will load for like 40% at best but be under 20% most of the time and sell the other one for $100, or use one which you'll load for 30-75% and sell the other one for $200? You go with the $100, I'll take the $200.
I paid €145 for a Seasonic X-650, I could've had a 1KW unit for that price. I prefer my unit with its better components though.
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| Posted: Tue, 2nd Nov 2010 15:08 Post subject: |
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no jb u wont use all the load but its also inefficient to be around 15%, the 20% crud about how if ur around that usage on ur psu ur using too much electricity is a meh situation, what are the voltage req of TC's "two" cards, how much margin will there be if the rails are not upto it wether he has more than one rail or what not.. For general workstation a amicable psu is enough yes but for gaming with high end hardware and multiples of it along with dvd burning and all that you do simultaneously, its best to be over those figures than on the line.
Of course you got heat dicipation from the output totals as well to take into account, which generally will loose you wattage.
Your also suggested pwr that he sells that shit without really thinking of what TC has just done recently in short space of time and upgrade his hardware like hes on steriods.. He IS better off overall having the bigger draw capable psu in my eyes, sure keep the one that is ample then, but later on id rather spend that little bit more personaly ( of course his is free ) and be more future proof as the psu is a mighty purchase for your gaming needs money wise again..
| Quote: | | A PSU that's loaded for 50% will last longer than the exact same unit at 5% load. |
you really sure about that? Anything under load component wise is better off under less load with the ability to provide the same output levels needed to do the job, thats pretty wet statement, and if you know your cheap components you would know that caps are a good place to start with that theory..
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| Posted: Tue, 2nd Nov 2010 15:33 Post subject: |
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May I ask a slightly off-topic question since you guys seem to know a lot about PSUs?
Is it bad to push a PSU to its limits like keeping a 560W PSU at 500+W for several hours per day?
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| Posted: Tue, 2nd Nov 2010 15:42 Post subject: |
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| me7 wrote: | May I ask a slightly off-topic question since you guys seem to know a lot about PSUs?
Is it bad to push a PSU to its limits like keeping a 560W PSU at 500+W for several hours per day? |
well pwer man up there and myself may ask you what you doing to pull 500watts for several hours a day I dont even do that on my ham radio linear here and i talk for britain. |
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tonizito
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| Posted: Tue, 2nd Nov 2010 15:57 Post subject: |
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| moosenoodles wrote: | | you really sure about that? Anything under load component wise is better off under less load with the ability to provide the same output levels needed to do the job, thats pretty wet statement, and if you know your cheap components you would know that caps are a good place to start with that theory.. |
Well, I am.
I'd say that 50% PSU power usage with your system on load is the sweet spot for any PSU, be it component durability wise or efficiency wise (just look at the load vs efficiency graph on some PSU boxes, like Corsair).
EDIT: I'll just let this guy do the rest of the talking for me:
http://www.overclockingwiki.org/forums/showthread.php/4920-Think-You-Need-A-1000W-PSU?p=66908&viewfull=1#post66908
| boundle (thoughts on cracking AITD) wrote: | | i guess thouth if without a legit key the installation was rolling back we are all fucking then |
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Werelds
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| Posted: Tue, 2nd Nov 2010 16:24 Post subject: |
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| moosenoodles wrote: | | Of course you got heat dicipation from the output totals as well to take into account, which generally will loose you wattage. |
This, and exactly this is what efficiency is. Say your PSU is 83% efficient (like the one above) and you need 120W. It'll be pulling 120/0.83 = 144.6W - so that's 24.6W going into heat.
| moosenoodles wrote: | | you really sure about that? Anything under load component wise is better off under less load with the ability to provide the same output levels needed to do the job, thats pretty wet statement, and if you know your cheap components you would know that caps are a good place to start with that theory.. |
No, because electric current running through the components isn't what wears them down. It's how efficient they can do that; anything they can't handle will be converted into heat, and it's that heat which causes them to degrade 
If you look at the efficiency graph for most PSUs, like tonizito says they top out between 40 and 60%. So yeah, getting too big of a PSU is just as damaging to the thing itself as it is to get a PSU that will be sitting at 95% of its capacity constantly; in fact, at 95% the efficiency is probably higher than it is at 5%  |
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| Posted: Tue, 2nd Nov 2010 17:28 Post subject: |
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Ill just say, high end psu regardless of size is more likely to last out, high end that is of its build quality.. This ones been going all day non stop ON all day for most part but when im away from the house for more than a day, and thats not often no more - and has been for 4 years + im sure its more like 5 to 6 but its still solid.. And the good thing is in that time I have not had to change the psu when changing boards, or cards etc..
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Werelds
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| Posted: Tue, 2nd Nov 2010 19:39 Post subject: |
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Maximum output really doesn't say anything about quality inside. Want an example? Corsair's HX series. The 650 model is a Seasonic build, the 750, 850 and 1000W units are CWT builds. They all have the same 80+ certification, but the Seasonic build has less ripples and the CWT builds get coil whining after extended use.
Want more facts? Before my Seasonic X-650 I had a Cooler Master Real Power 550W (not the current Real Power Pro model) for nearly 5 years, including an Intel EE 955 + 8800 GTS. That's a 130W CPU (same as the current i7-9xx) with a 145W GPU (same as a 5850 or 6870). Hell, I even overclocked both of them, and that PSU is still running my E8400+HD5870 at the guy who bought my old PC. I bought it all the way back in 2005, and it's still functioning flawlessly.
So no, size means absolutely jackshit with PSUs. Just check any of the sites out there who deal with this seriously: Jonny Guru or X-Bit labs are very methodical and thorough, and there is absolutely no point in buying even a 1 KW PSU unless you plan to run tri-SLI/CFX with a 130W CPU overclocked beyond belief. If you want to spend it wisely, take the money you pay for 95% of the 1KW units and stick it into buying a much higher quality 650-750W unit.
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| Posted: Tue, 2nd Nov 2010 19:45 Post subject: |
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Keep in mind as technology grows, die sizes shrink and use less power as well.
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| Posted: Tue, 2nd Nov 2010 19:59 Post subject: |
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| SpykeZ wrote: | | Keep in mind as technology grows, die sizes shrink and use less power as well. |
not to mention that I did say "high end that is of its build quality.."
lol's see that? Meaning as long as the build quality is up to par.. so many fancy named brands do use shitty parts or parts that many other shitty brands use. I mean almost all our dvd drives have the same guts lol... That used to make me chuckle a while back. |
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| Posted: Tue, 2nd Nov 2010 22:45 Post subject: |
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I would keep the corsair psu and sell the BFG. That specific 1200w model has got some pretty ugly reviews in some places, also its ripple is very high + its fucking loud on high loads.
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Werelds
Special Little Man
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Location: 0100111001001100
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| Posted: Tue, 2nd Nov 2010 23:07 Post subject: |
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Not that he'd ever reach high enough of a load without going for 3 480's and a 980X 
But yeah, I looked that unit up, and it did get some bad reviews. It's manufactured by Andyson International. However, they did fix a lot of issues in a revision in March of this year, and I don't think anyone's retested it since then.
Still, even if this unit would do flawless, not even TC would get anywhere near its maximum load (not even you are crazy enough to go for tri-SLI with the top hexacore from Intel right TC? ), so taking the money for it is much more interesting than "future proofing" for a situation that'll never occur.
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| Posted: Tue, 2nd Nov 2010 23:26 Post subject: |
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never doubt the TC...
hes shocked some of us with his sudden build specs of late right lol ?
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| Posted: Tue, 2nd Nov 2010 23:32 Post subject: |
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Hes mostly shocked people by making hes nice macgyver inventions, like the AC mod.
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