- Joined
- Oct 19, 2006
- Messages
- 193 (0.03/day)
- Location
- Nashville, Tennessee
System Name | DeathAdder |
---|---|
Processor | Intel Core i7 6700K @4.6 Ghz 1.31v |
Motherboard | Gigabyte Gaming 7 Z170X |
Cooling | NZXT Kraken x61 280mm |
Memory | 4x8GB G.Skill 3200Mhz |
Video Card(s) | MSI NVidia GeForce 980 Ti 6GB |
Storage | 2x Samsung 850 EVO 500 GB + 16 TB in HDDs |
Display(s) | LG UC87C 34" Ultrawide 3440x1440 |
Case | NZXT H440 White |
Audio Device(s) | JBL LSR310S + 2x JBL LSR308 |
Power Supply | EVGA P2 Platinum 1000 W |
Mouse | Corsair M65 |
Keyboard | Corsair K70 RGB |
Software | Windows 10 Pro |
Actually you know what guys, c don't need those Kilowatt power supplies. If you have a branded power supply and its over 400 watts, you can run 2900XT. I am not saying that. ATI says that, and I know its true.
Check the power input of all the devices in ur pC
AMD CPU - 65 watts or 90 watts (check your version on AMD site)
Intel CPU - 65 watts to 110 watts ( same here)
2900XT - 200 watts (75watts from PCIe slot + 75X2 from 2 6pin is the max, but it requires 25 watts less)
8800GTX - 175 watts (same maths here)
RAM - 15 watts per GB stick
Motherboard - 25 watts
PCI device - 10 watts
HDD - 15 watts
CD drive - 20 watts
Fans - 2to 3 watts
Sum it up.
This is the power requirement when your PC is being maxed out i.e. your processor's all cores are on 100% usage, your RAM is full, GPU is doing some GPGPU thing, motherboard is like frying, PCI devices are being used to max, cd drives rotating at highest speed, and fans too at highest speed.
This situation is impossible to achieve.
Add your complete power specs and then calculate 75% of it.
That is the total power usage of your PC. Surprised at how low it is???
But PSU degrades with life and degrades as much as 15%. Also they are only 75% efficient.
So double your final calculation and that should be a good future proof PSU for you.
Infact I have run Crossfire using 2 X850XT on VANtec Ion2 460 watts with X2 4600 which requires 110 watts at load.
Check the power input of all the devices in ur pC
AMD CPU - 65 watts or 90 watts (check your version on AMD site)
Intel CPU - 65 watts to 110 watts ( same here)
2900XT - 200 watts (75watts from PCIe slot + 75X2 from 2 6pin is the max, but it requires 25 watts less)
8800GTX - 175 watts (same maths here)
RAM - 15 watts per GB stick
Motherboard - 25 watts
PCI device - 10 watts
HDD - 15 watts
CD drive - 20 watts
Fans - 2to 3 watts
Sum it up.
This is the power requirement when your PC is being maxed out i.e. your processor's all cores are on 100% usage, your RAM is full, GPU is doing some GPGPU thing, motherboard is like frying, PCI devices are being used to max, cd drives rotating at highest speed, and fans too at highest speed.
This situation is impossible to achieve.
Add your complete power specs and then calculate 75% of it.
That is the total power usage of your PC. Surprised at how low it is???
But PSU degrades with life and degrades as much as 15%. Also they are only 75% efficient.
So double your final calculation and that should be a good future proof PSU for you.
Infact I have run Crossfire using 2 X850XT on VANtec Ion2 460 watts with X2 4600 which requires 110 watts at load.