- Joined
- Dec 21, 2008
- Messages
- 142 (0.02/day)
- Location
- Лиманск
| System Name | The Monolith |
|---|---|
| Processor | Intel Core i7 2600 @ 4.2 GHz |
| Motherboard | ASRock Z77M |
| Memory | Mushkin Enhanced Radioactive 8GB DDR3 1600 CL9 |
| Video Card(s) | EVGA GeForce GTX 680 FTW LE |
| Storage | 2x Intel 330 Series 180GB RAID 0 + WD Caviar Blue 1TB |
| Display(s) | LG Flatron IPS235B |
| Case | Lian-Li PC-7HX |
| Audio Device(s) | Creative Sound Blaster X-Fi Titanium HD + Audio Technica ATH-A900X |
| Power Supply | Antec TruePower New 750W |
| Software | Microsoft Windows 7 Professional 64-bit |
I'd like to mention an equation that would let you find how out much amperage your PSU has on the +12v rail(s). The +12v rails are probably the most important rails on a PSU since they supply the power to the CPU and GPU. People usually overlook this part of a PSU, in fact they tend to just buy cheaper PSUs in general which will cause many issues.
If you look on the sticker, near the +12v area, you'll see the amperage of the +12v rail(s), and under that a power measurement in watts. Lets look at my PSU for example, the COOLER MASTER Real Power Pro 650W.
See, three +12v rails with 19A on each and beneath it 540W. This means the +12v rails combined generate 540W of power at max load. Since 540W is the +12v power, divide 540 by 12 to get the real amperage, don't do 19 times 3 since that gives you 57.
Correct Way:
540W/12v = 45A - nice value by the way
Incorrect Way:
19A + 19A + 19A = 57A
Why is that incorrect?
57A x 12v = 684W - this is a 650W PSU
NOTE: This does not have to be done for a PSU with a single +12v rail. Lets use the COOLER MASTER Silent Pro M 600W for example.
It tells you right there it has 40A of +12v power. If you have any doubts...
480W/12v = 40A
I prefer multiple +12v rail power supplies since they are more stable (generally speaking). Here is what I recommend you look for in a PSU.
Not good at math? Neither am I. Use a calculator!
http://www.calculator.com/pantaserv/makecalc
Also check out my PSU guide, as well as the stickied guide.
http://www.evga.com/forums/tm.asp?m=100557126
If you look on the sticker, near the +12v area, you'll see the amperage of the +12v rail(s), and under that a power measurement in watts. Lets look at my PSU for example, the COOLER MASTER Real Power Pro 650W.
See, three +12v rails with 19A on each and beneath it 540W. This means the +12v rails combined generate 540W of power at max load. Since 540W is the +12v power, divide 540 by 12 to get the real amperage, don't do 19 times 3 since that gives you 57.
Correct Way:
540W/12v = 45A - nice value by the way
Incorrect Way:
19A + 19A + 19A = 57A
Why is that incorrect?
57A x 12v = 684W - this is a 650W PSU
NOTE: This does not have to be done for a PSU with a single +12v rail. Lets use the COOLER MASTER Silent Pro M 600W for example.
It tells you right there it has 40A of +12v power. If you have any doubts...
480W/12v = 40A
I prefer multiple +12v rail power supplies since they are more stable (generally speaking). Here is what I recommend you look for in a PSU.
- Below 400W: Above 20A on the +12v rail(s)
- 400W-450W: Above 20A on the +12v rail(s)
- 451W-500W: Above 25A on the +12v rail(s)
- 501W-550W: Above 30A on the +12v rail(s)
- 551W-600W: Above 34A on the +12v rail(s)
- 601W-650W: Above 40A on the +12v rail(s)
- 651W-700W: Above 45A on the +12v rail(s)
- 701W-750W: Above 50A on the +12v rail(s)
- 751W-800W: Above 50A on the +12v rail(s)
- 801W-900W: Above 60A on the +12v rail(s)
- 901W-1000W: Above 70A on the +12v rail(s)
- 1001W-1200W: Above 80A on the +12v rail(s)
Not good at math? Neither am I. Use a calculator!
http://www.calculator.com/pantaserv/makecalc
Also check out my PSU guide, as well as the stickied guide.
http://www.evga.com/forums/tm.asp?m=100557126
Last edited:
