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Windows 7: Is a 550W 80+ Gold PSU Enough?

19 Nov 2015   #11
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Quote:
If voltage is fine,current should be fine also,
Yep I did say it was an idea of my own and not in fact reality. The car battery example was what caused me to think this, because it does happen and to me on many occasions in the past.

But having said that it would be very unusual for the current not to be there a good reference for PSU's is this

Power Supply 101: A Reference Of Specifications - Power Supplies see section 2 for interesting stuff.


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19 Nov 2015   #12
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

[QUOTE=ICIT2LOL;3179403]
Quote:

To be honest it doesn't matter what components one discusses on the forum there will never be a consensus of opinion that agree to any particular brand .
Sure there is
I believe it's none of them Corsair or evga/... make their own psu's
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19 Nov 2015   #13
unrealRage

Windows 7 x64
 
 

Quote   Quote: Originally Posted by ICIT2LOL View Post
Yep I did say it was an idea of my own and not in fact reality. The car battery example was what caused me to think this, because it does happen and to me on many occasions in the past.

But having said that it would be very unusual for the current not to be there a good reference for PSU's is this

Power Supply 101: A Reference Of Specifications - Power Supplies see section 2 for interesting stuff.
Well about that car battery example;car battery is the source of power,electrical grid is source of power for psu.It constantly delivers steady voltage (if it's not overloaded) and current, car battery on other hand may not.

And that's interesting text about power supplies.
But I can be wrong,I am still at school ,studying this
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19 Nov 2015   #14
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot
 
 

With a switching power supply, which is what computer PSUs are, it is possible for a faulty supply rail to read its rated voltage yet not have enough current. However, under load, that voltage will drop to near zero as the current demand goes up. More likely, however, is that the rail will simply cut out and provide no voltage or current at all.

The same concept applies to car batteries. It only takes a few milliamps of current to fool a meter, but that sure won't turn a car over.
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20 Nov 2015   #15
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Quote:
With a switching power supply, which is what computer PSUs are, it is possible for a faulty supply rail to read its rated voltage yet not have enough current. However, under load, that voltage will drop to near zero as the current demand goes up. More likely, however, is that the rail will simply cut out and provide no voltage or current at all.
Thanks Mellon Head which is what I was trying to put across only you put it a bit more simpler than I.
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20 Nov 2015   #16
Rain08

Windows 7 Professional 64-bit (6.1, Build 7601)
 
 

To solve the issue of me getting a 550W even though I have a 600W, it's because I don't want to spend money on things just to have them blown up because of a shoddy PSU. Here's the picture of it, IDK how do I interpret them numberz.

Edit:
Quote   Quote: Originally Posted by ThrashZone View Post
Yep I wasn't really looking or comparing the existing brand but he did mention the evga and so posted that the 750 G2 is a nice upgrade
Too bad they must be out of stock that is about the only reason I can see of not being offered anymore ?
I think that it's unlikely for the particular store to run out of PSU's. I mean, they still have LGA 1155 MoBo's and CPUs for sale. They even get parts from other countries quick. When the 980 Ti was released, it arrive 3 days later here. Maybe the store thinks that EVGA PSU's are not that popular. I see a lot of people there getting Seasonic or Corsair stuff.


Attached Thumbnails
Is a 550W 80+ Gold PSU Enough?-12287409_1143750738977049_609479493_o.jpg  
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20 Nov 2015   #17
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot
 
 

Well, doing the math gets us to 615 Watts, so I guess it's a 600W supply. Whether it actually gets anywhere near 600 Watts is anyone's guess. I suspect it won't.
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20 Nov 2015   #18
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Very few hits for Arsenal power supplies on Google.

One hit I did find for it says:

Arsenal Power Supply 600w with Back switch Free Power Cord,. ₱ 490.00 Caloocan City, Metro Manila +639091257730.

490 Philippine pesos is about 11 US dollars.

Make of that what you will.
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20 Nov 2015   #19
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

I agree with ignatzatzonic mate the PSU looks pretty ordinary and I know you shouldn't go by looks but.....
the numbers on it you have them on the sticker that tells you the volts and the output current.

If you are familiar with the Ohms law then it is only a matter of some simple maths to work out the watts current and volts in a given circuit if you know two of the three values ie watts volts amps in a device.
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20 Nov 2015   #20
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot
 
 

Ohm's Law:

Power (in Watts) = Voltage x Current

To figure out the power output of that supply, multiply the voltage times the current for each rail and add them all together.

It comes to about 615 Watts, but if that supply can push anywhere close to that I'll eat my underwear.
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