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post #11 of 27
your video card calls for a minnimum of 450 watt PSU, add in your remaing components and the fact that your overclocking I would suggest a minnimum of a 650 watt power supply the highest you have listed is a 500 watt.
post #12 of 27
Quote:
Originally Posted by Bluelighting View Post

your video card calls for a minnimum of 450 watt PSU, add in your remaing components and the fact that your overclocking I would suggest a minnimum of a 650 watt power supply the highest you have listed is a 500 watt.
uh, no. I'm not sure about the first 2, but the 430w corsair builder series should be more than adequate for that system
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ivybeech
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post #13 of 27
Look for an Antec VP350P if you want to save some money, or an XFX Core 450 if you can spend a little more.
post #14 of 27
Quote:
Originally Posted by Original Sin View Post

Look for an Antec VP350P if you want to save some money, or an XFX Core 450 if you can spend a little more.

So clarify for me please your calcuations so I can keep my facts staright since it seems my math is off.


Motherboard 15 to 30 watts
CPU 40 to 100 watts
Ram 56 watts per Gb
Pcie 75 watts
HDD and SSD 3 to 10 watts
Auxliary connector for a pcie card 150 watts

this is what they say nis basic watts for PSU granted they probably figure high. I am just curious to know so I can better understand selecting a PSU for a system Thanks.
post #15 of 27
We have a 3750K which is a 90-100W CPU @ ~1.3v (depending on sample) a GTX 460 which is a ~170W VGA and a bunch of other stuff that fits a 30-40W envelope (RAM about 3W per stick, SSD about 3W, etc). All these are full load values (so rare occurrences), the typical load for such a system being ~200W.
smile.gif
post #16 of 27
Quote:
Originally Posted by XiDuel View Post

Thanks for the fast reply
I don't really understand how it can be fake; I bought it right from scan a few months ago (http://www.scan.co.uk/products/700w-ace-psuace700br-black-with-red-12cm-fan-atx-v23-psu)
Is there any way I can test it's true power without blowing it up again.

If I were to get a new psu, what would be the cheapest safe option to go for? And again if buying off scan, how could I tell if its rating is real?

Thanks
broken_projector already gave an excellent answer, but I'd like to add a few things.
1st. The fact that it costs 17 pounds and claims to be a 700W PSU should bring up a big red flag, because that's simply ridiculous.... even if by some incredible miracle that PSU could deliver 700W, the output quality and stability would be so poor that you wouldn't want it anywhere near your HW, it's a hazard.

2nd. Yes, there are ways to test various relevant parameters (voltage regulation, ripple/noise suppression, transient response, etc), but it requires expensive equipment and proper know how (to do it correctly and precisely).
I would advice you get a DMM (digital multimeter) and check out some "how to" videos, then start playing with it and checking out stuff (voltage drops on particular rails, particular connectors, etc).

3rd. Not many good deals on scan at the lower end of the price spectrum, I wouldn't recommend anything else apart from the XFX Core 450, I'd suggest you look at other retailers (Ebuyer, OCuK, etc).
post #17 of 27
Thread Starter 
post #18 of 27
Quote:
Originally Posted by Original Sin View Post

We have a 3750K which is a 90-100W CPU @ ~1.3v (depending on sample) a GTX 460 which is a ~170W VGA and a bunch of other stuff that fits a 30-40W envelope (RAM about 3W per stick, SSD about 3W, etc). All these are full load values (so rare occurrences), the typical load for such a system being ~200W.
smile.gif

Ok I have to admit I must be missing something and i really to understand what your saying. if the cpu is 100 watt GTX 460 is 170 watt 40 watts for other stuff 3w per stick say 2 so 6 watts 3 watts for ssd you would add them all togeather total of 319 watts so how ould a 200 watt PSU be enough?

again just so i make sure my understanding of PSU's are correct I need to understand this so I am not making mistakes thanks.
post #19 of 27
Quote:
Originally Posted by XiDuel View Post

Ok, I am now thinking about the XFX (http://www.scan.co.uk/products/450w-xfx-pro-core-edition-p1-450s-x2b9-85-eff-80-plus-bronze-sli-crossfire-eps-12v-fan-atx-v231-psu?utm_source=google+shopping&utm_medium=google+shopping)

Before I buy this, does anyone have any major concerns about this one? smile.gif
It only has one issue, a single PCIe connector, which means you'll have to use a Molex -> PCIe adapter for your GTX 460.

If you're willing to buy from these guys, the TR-450P is a very solid unit, the price is excellent and it comes with both PCIe connectors you'll need for the GTX 460
post #20 of 27
Quote:
Originally Posted by Bluelighting View Post

Quote:
Originally Posted by Original Sin View Post

We have a 3750K which is a 90-100W CPU @ ~1.3v (depending on sample) a GTX 460 which is a ~170W VGA and a bunch of other stuff that fits a 30-40W envelope (RAM about 3W per stick, SSD about 3W, etc). All these are full load values (so rare occurrences), the typical load for such a system being ~200W.
smile.gif

Ok I have to admit I must be missing something and i really to understand what your saying. if the cpu is 100 watt GTX 460 is 170 watt 40 watts for other stuff 3w per stick say 2 so 6 watts 3 watts for ssd you would add them all togeather total of 319 watts so how ould a 200 watt PSU be enough?

again just so i make sure my understanding of PSU's are correct I need to understand this so I am not making mistakes thanks.
that's with the cpu and gpu at 100% load, which would only happen if your using furmark and prime 95 at the same time to stress test, typical loads are much lower
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ivybeech
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256gb M4 SSD boot 4TB Seagate - Raid 0 4TB Seagate - Raid 0 2TB Western Digital Green for storage 
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5TB Seagate 3 tb Seagate  2TB Seagate 4TB of various external storage 
CoolingOSMonitorMonitor
Corsair H100 in push/pull Windows 10 pro ASUS ROG Swift PG278Q 27" OC Catleap Q270SE IPS 2560x1440@120hz 
KeyboardPowerCaseMouse
Xarmor mechanical cherry mx-brown Hale90 1000w 80+gold EVGA DG-87 Logitech G502 
CPUMotherboardGraphicsRAM
Intel i5-2400 Intel DP67BG Nvidia GTX 950 8gb Gskill Ripjaws 1600mhz ddr3 
Hard DriveOptical DriveCoolingOS
256gb samsung SSD Asus Blu-ray Drive Model BC-12B1ST/BLK/B/AS Corsair H50 push/pull Windows 7 Professional 
MonitorPowerCase
Vizio m60-c3 - 3840x2160 OCZ ZT 750w Silverstone Grandia gd-05 
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