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PSU DOUBT Cooler master 625w will be enough?

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February 6, 2014 9:10:36 PM

My question is related to the power that receives my sistem will be enough with that PSU?

Mobo: GA-990-FXA-UD3 Rev 4.0
Proccesor: FX 8320 (Without OC)
RAM: 8GB two sticks DDR3 ADATA at 1600mhz
Video: Two 7850 (Crossfire) of different brand ASUS (GPU1) and XFX (without OC)
2 HDD: One 2tb (Seagate) and 320gb Western Digital
and 1 DVD R+RW device
5 LED fans 120mm

Windows 8 64 bits

3 days before i had one FX-6300 no problems with it.
Now recently installed the new proccesor, and notice that Valley, Heaven Benchmarks had improved their scores. Now the interesting thing is i did "PSU calculate" in Cooler Master, Thermaltake and ASUS calculators all of them give me a 568w in promedy. But i'm concerned that my PSU is "hurting" my components.

One noise of "static" is the only thing that take my attention comming from the PSU after using it to play games for 20-30 mins

No BSOD, NO BEEPS, nothing worng aparently. is only to ask the experts. Please answer me

This is the first question on this forum. Sorry for my english.

Also here are the "PSU options in my area"
Thermaltake TR2 RX750w: https://www.thermaltakeusa.com/products-model.aspx?id=C...

Corsair GS800: http://www.corsair.com/us/power-supply-units/gs-series-...

Corsair GS700: http://www.corsair.com/us/power-supply-units/gs-series-...

CoolerMaster (i know you hate it...well there are only 3 options in were i live u.u: http://www.coolermaster-usa.com/product.php?product_id=...

:fou: :fou: :fou: :fou: :fou: :fou: :fou: :fou: :fou:  My system is freezing !! D: with crossfire, anyone knows why is happening? it worked fine yesterday but after disabling "frame pacing" it all began to explode.

With Cross activated, after one or two minutes of loading a game, THE SYSTEM CRASHES and i need to reboot manually, i had uninstalled the 14.1 Drivers and installed the 13.12 but the problem still present.

I had done anything related with the driver, but the problem persists. the both cards have months of life
xfx: 5 months and the asus has 3 Please help me to figure out what is the problem with my computer.



February 6, 2014 9:12:33 PM

I'd up it to at least 700W. It's rated at 625W, but that doesn't mean it can supply that all the time. So you're pushing the PSU to almost it's max, not good.
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February 6, 2014 9:15:53 PM

well my system takes about 350W when running BF4, which pushes my o/c CPU to 70% and 2x 7950 to 90% with stock clocks on 3 monitors. However, if I o/c everything to the max and benchmark, it can pull 750W.

So I think you'll be fine at close to stock clocks gaming, even a little o/c. But heavy o/c and bench marking will push it to the max.
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February 7, 2014 12:55:02 AM

woltej1 said:
I'd up it to at least 700W. It's rated at 625W, but that doesn't mean it can supply that all the time. So you're pushing the PSU to almost it's max, not good.


Thx for you reply...i'm starting to looking for one PSU of 725w...maybe the next week arrives...could i use my computer (work an play) while it arrives ?
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February 7, 2014 12:58:27 AM

leeb2013 said:
well my system takes about 350W when running BF4, which pushes my o/c CPU to 70% and 2x 7950 to 90% with stock clocks on 3 monitors. However, if I o/c everything to the max and benchmark, it can pull 750W.

So I think you'll be fine at close to stock clocks gaming, even a little o/c. But heavy o/c and bench marking will push it to the max.


Thanks for the answer, if what are you saying is correct...i can use my pc for a while. Maybe 1 week of normal use (gaming and working) ? i'm starting to look one 725PSU of the same brand.

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February 7, 2014 1:03:52 AM

its not the quantity of wattage that's the problem, its the quality of the PSU.

please stay away from the CM Extreme 2 PSUs.
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February 7, 2014 1:10:00 AM

qbsinfo said:
its not the quantity of wattage that's the problem, its the quality of the PSU.

please stay away from the CM Extreme 2 PSUs.


Thx for the warning...wich brand will you choose? In my area, i can only found Corsair, Cooler Master and ThermalTake D: thanks for reply

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February 7, 2014 1:19:56 AM

I would suggest the Corsair RM 750 for you.
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February 7, 2014 7:50:57 AM

Order a good 700W, but you can get by in the mean time.
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February 7, 2014 9:15:42 PM

woltej1 said:
Order a good 700W, but you can get by in the mean time.


Also here are the "PSU options in my area"
Thermaltake TR2 RX750w: https://www.thermaltakeusa.com/products-model.aspx?id=C...

Corsair GS800: http://www.corsair.com/us/power-supply-units/gs-series-...

Corsair GS700: http://www.corsair.com/us/power-supply-units/gs-series-...

CoolerMaster (i know you hate it...well there are only 3 options in were i live u.u: http://www.coolermaster-usa.com/product.php?product_id=...
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February 8, 2014 2:03:44 AM

you still around? have you found one?
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February 8, 2014 3:08:15 AM

If you supply the people here with a link to a site they might pick something for you.
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February 8, 2014 11:36:42 AM

Vic 40 said:
If you supply the people here with a link to a site they might pick something for you.

all right thanks for the suggestion i'll do it.

here they are:

Also here are the "PSU options in my area"
Thermaltake TR2 RX750w: https://www.thermaltakeusa.com/products-model.aspx?id=C...

Corsair GS800: http://www.corsair.com/us/power-supply-units/gs-series-...

Corsair GS700: http://www.corsair.com/us/power-supply-units/gs-series-...

CoolerMaster (i know you hate it...well there are only 3 options in were i live u.u: http://www.coolermaster-usa.com/product.php?product_id=...
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February 8, 2014 11:42:54 AM

Ok,also give a max. budget.
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February 8, 2014 11:47:45 AM

qbsinfo said:
you still around? have you found one?


Vic 40 said:
If you supply the people here with a link to a site they might pick something for you.


Yep i'm still around here, and nope i didn't found one yet... the local shop hasn't received the new "shipment" but there are some options i will post them in a few minutes
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February 8, 2014 1:06:30 PM

qbsinfo said:
its not the quantity of wattage that's the problem, its the quality of the PSU.

please stay away from the CM Extreme 2 PSUs.

Also here are the "PSU options in my area"
Thermaltake TR2 RX750w: https://www.thermaltakeusa.com/products-model.aspx?id=C...

Corsair GS800: http://www.corsair.com/us/power-supply-units/gs-series-...

Corsair GS700: http://www.corsair.com/us/power-supply-units/gs-series-...

CoolerMaster (i know you hate it...well there are only 3 options in were i live u.u: http://www.coolermaster-usa.com/product.php?product_id=...

Thanks all of you :D 

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February 8, 2014 1:41:12 PM

The Corsair GS700 would be a good choice.
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Best solution

February 8, 2014 2:18:00 PM

RommelKorp said:
qbsinfo said:
its not the quantity of wattage that's the problem, its the quality of the PSU.

please stay away from the CM Extreme 2 PSUs.

Also here are the "PSU options in my area"
Thermaltake TR2 RX750w: https://www.thermaltakeusa.com/products-model.aspx?id=C...

Corsair GS800: http://www.corsair.com/us/power-supply-units/gs-series-...

Corsair GS700: http://www.corsair.com/us/power-supply-units/gs-series-...

CoolerMaster (i know you hate it...well there are only 3 options in were i live u.u: http://www.coolermaster-usa.com/product.php?product_id=...

Thanks all of you :D 



that 7850 Xfire setup won't need more than 220 watts - thats BOTH cards. (each card only need a 6 pin power connection)
this is a bench with furmark that stresses the power more than anything else and you'll never see it while gaming:


add the 8320 (~125 watts) the 5 fans ( ~5 watts each) and the two HD (~5 watts of 12 volts) you're looking at 380 watts/32 amps of usage on the 12 volt rail.keeping the max power under 80% that would be a 40 amp 12 volt rail.

now you're probably looking at that CM EX2-620 and thinking it has enough but unfortunately that label is decieving with the EX2 series as hardware secrets found out reviewing the 475 model:
http://www.hardwaresecrets.com/article/Cooler-Master-Ex...
Quote:
We think it is simply ridiculous that in this day and age there are still well-known brands labeling power supplies with fake wattages. In the case of the Cooler Master Extreme 2 475 W, we can clearly see that this was done deliberately, as the product box and label list “475” without the letter “W” or the word “Watts” after it, probably to protect themselves in the case of an eventual lawsuit, by claiming that “475” is the “model” of the power supply, not its wattage. However, the manufacturer’s website clearly lists this unit as being a 475 W model. Of course, we are against this kind of practice, and Cooler Master may face problems with agencies in charge of regulating the power supply market around the world.

also none of the EX2 series have an active PFC to be 80+ certified. <- not good.

so please forget any of those . . . and while the TR2 series from thermaltake are better but not by much.

any quality 500 watt PSU will be able to supply 40 amps of 12 volts contiously. hopefully understanding that might open up some more options for you. if not, than consider avoiding the CM and thermaltake PSUs and knowing that 500 watts is sufficient then the GS 700 would fit the bill perfectly compared to any other choice you have listed. but is there a GS 600 available?

and there is such a thing as overkill that can be harmful, to the PSU, by getting too big of one; you throw idle efficiency out the window when you look at full load efficiency only. but explaining that would involve another wall of text and i don't like to do that.


hope this helps.
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February 9, 2014 1:41:01 AM

qbsinfo said:
RommelKorp said:
qbsinfo said:
its not the quantity of wattage that's the problem, its the quality of the PSU.

please stay away from the CM Extreme 2 PSUs.

Also here are the "PSU options in my area"
Thermaltake TR2 RX750w: https://www.thermaltakeusa.com/products-model.aspx?id=C...

Corsair GS800: http://www.corsair.com/us/power-supply-units/gs-series-...

Corsair GS700: http://www.corsair.com/us/power-supply-units/gs-series-...

CoolerMaster (i know you hate it...well there are only 3 options in were i live u.u: http://www.coolermaster-usa.com/product.php?product_id=...

Thanks all of you :D 



that 7850 Xfire setup won't need more than 220 watts - thats BOTH cards. (each card only need a 6 pin power connection)
this is a bench with furmark that stresses the power more than anything else and you'll never see it while gaming:


add the 8320 (~125 watts) the 5 fans ( ~5 watts each) and the two HD (~5 watts of 12 volts) you're looking at 380 watts/32 amps of usage on the 12 volt rail.keeping the max power under 80% that would be a 40 amp 12 volt rail.

now you're probably looking at that CM EX2-620 and thinking it has enough but unfortunately that label is decieving with the EX2 series as hardware secrets found out reviewing the 475 model:
http://www.hardwaresecrets.com/article/Cooler-Master-Ex...
Quote:
We think it is simply ridiculous that in this day and age there are still well-known brands labeling power supplies with fake wattages. In the case of the Cooler Master Extreme 2 475 W, we can clearly see that this was done deliberately, as the product box and label list “475” without the letter “W” or the word “Watts” after it, probably to protect themselves in the case of an eventual lawsuit, by claiming that “475” is the “model” of the power supply, not its wattage. However, the manufacturer’s website clearly lists this unit as being a 475 W model. Of course, we are against this kind of practice, and Cooler Master may face problems with agencies in charge of regulating the power supply market around the world.

also none of the EX2 series have an active PFC to be 80+ certified. <- not good.

so please forget any of those . . . and while the TR2 series from thermaltake are better but not by much.

any quality 500 watt PSU will be able to supply 40 amps of 12 volts contiously. hopefully understanding that might open up some more options for you. if not, than consider avoiding the CM and thermaltake PSUs and knowing that 500 watts is sufficient then the GS 700 would fit the bill perfectly compared to any other choice you have listed. but is there a GS 600 available?

and there is such a thing as overkill that can be harmful, to the PSU, by getting too big of one; you throw idle efficiency out the window when you look at full load efficiency only. but explaining that would involve another wall of text and i don't like to do that.


hope this helps.


Maybe the GS 600 will not be available...only the GS 700 and 800 models. I already read about the overkill...if i'm right, for my specs it will not be a problem or yes?

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February 9, 2014 3:25:13 AM

RommelKorp said:

Maybe the GS 600 will not be available...only the GS 700 and 800 models. I already read about the overkill...if i'm right, for my specs it will not be a problem or yes?


With the gs700 will there be no problem anyway,it just about efficiency.On low loads will a higher wattage (mostly bronze rated units or worse) not be as efficient,which means that on low loads it will draw pore power from the wall socket than a lower wattage psu to deliver the same amount of wattage.

If your pc uses 100watts and you have a 450watt unit you go over the 20% usage that with most bronze rated units is necessary to get into the >82% and have a relative good efficiency.With a 700watt unit you're still under the 20% and will it most likely be less efficient.
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February 9, 2014 10:58:23 AM

RommelKorp said:

Maybe the GS 600 will not be available...only the GS 700 and 800 models. I already read about the overkill...if i'm right, for my specs it will not be a problem or yes?



as mentioned above the efficiency won't be as good @low load levels; it takes a 3%-7% nosedive when below 20%. an effect of inefficiency is heat is generated (wasted "work") and causes the capacitors to age (dry out). since i believe most PSU fans are regulated with load and not temp, it can get pretty hot idling.

but keep in mind caps are rated with a "load life"; how many hours (usually 1,000) it can sustain at a rated temperature (which is usually 85c or 105c). since the general rules is that "load life" doubles for every 10c below its rating; (i did some math about it recently) an 85c cap will last about 2 and a half years whereas a 105c cap will last close to 7 years @40c. (if i remember my math i used in a post recently).

according to the specs shown on hardware secrets, the GS 700 has 105c chemicon and samxon caps. they'll handle the extra "warmth" better than 85c caps.

short story:

you'll be fine with the GS 700.
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