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Do I need a big power supply for overcloking my CPU/GPU

post #1 of 4
Thread Starter 
Hey, I was just wondering if I need a big power supply to overclock. I currently have an intel core i5 2500k cpu and my power supply is 600w. Do you think I need a big power supply to overclock??? Oh and my GPU is an EVGA GeForce GTX 560 Ti 1GB
post #2 of 4
Your good. That CPU, when overclocked (talking high overclock), should use around 130-150W max, and the GPU is only rated for 170W for the 384SP version, and 210W for the 448SP version. The maximum power the GPU can draw is 225W (75W from the PCIe slot, and 75W from each 6-pin power cable -- also, for reference,150W is the max power draw for the 8 pins).

Your looking at a maximum power draw of ~375W for the CPU/GPU when overclocking, thus leaving ~225W for the rest of the system (HDD's use ~10W, optical drives should account for 15W, RAM is ~1-5W per stick, motherboard is ~50-75W, and fans are 1-5W each -- please keep in mind these are maximum power draw figures, and you will most likely not be hitting the max all the time).
Edited by xxicrimsonixx - 4/12/12 at 5:02am
     
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CPUMotherboardGraphicsRAM
i7 3820 WC'd ASRock Fatal1ty X79 Professional Sapphire + Gigabyte R9 290X CF WC'd 16GB G. Skill Ripjaws Z 
Hard DriveHard DriveOptical DriveCooling
2x 3TB Seagate Barracuda 7200.14 RAID 1 2x 250GB Samsung 840 Series SSD RAID 1 Samsung Burner w/ Lightscribe Custom Watercooling 
OSMonitorKeyboardPower
Windows 10 Professional 64-bit 55" 4K Samsung Curved TV Roccat Sova Mechanical Cooler Master Silent Pro 1200W Gold 
CaseMouseMouse PadAudio
Cooler Master HAF 922 w/ Dust Filters Roccat Kone XTD 2x XFX Warpad ODAC > Glow Amp One > K702/65 
AudioOther
Yamaha Receiver + 5.1 Xbox One Wireless Controller 
CPUMotherboardGraphicsRAM
Intel Core i5 540M @ 3.33Ghz DC 3.65Ghz SC Acer Intel HD 3000 + ATi Radeon HD 5650M Switchable 4GB 
Hard DriveOSMonitorMouse
OCZ Vertex 2 SSD Windows 10 Pro 64 bit 13.3" 1366x768 G403 
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iBasso D-Zero Headphone AMP + DAC 
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post #3 of 4
What brand power supply? most likely not but if its some no name generic one i would definitely swap it out, simply for reliability purposes.

Btw, Welcome to OCN smile.gif, please post your pc specifications in your signature by using the rigbuilder. If you not sure head onto this section http://www.overclock.net/f/2/new-members where you can find all the information you need as a new member at the top of the page.
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BitPhire
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Little Pooh
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CPUMotherboardGraphicsRAM
AMD Phenom II X4 945 @3.5GHz Gigabyte GA-890GPA-UD3H GigaByte Radeon HD 5770 Corsair Vengeance LP 8GB 1600MHz 
Hard DriveHard DriveCoolingOS
Samsung 830 128GB SSD Seagate Barracuda 500GB CoolerMaster Hyper 212X Windows 7 Professional 64bit 
MonitorKeyboardPowerCase
BenQ G2222HDH Leopold FC500R (MX Brown) Corsair HX-650 Bitfenix Shinobi Window 
MouseMouse PadAudioOther
Razer DeathAdder V2 3500DPI Razer Goliathus Control Standard Edition NuForce uDAC-2SE Audio Technica ATH-TAD500 
CPUMotherboardRAMHard Drive
Intel Celeron G530 ASRock H77M Motherboard Kingston ValueRAM 4GB Western Digital Blue 1TB 
Optical DriveOSMonitorPower
ASUS DVD Burner Windows 7 64Bit SP1 Sharp Aquos 37" LCD TV Corsair CX-430 V2  
CaseMouseOther
CoolerMaster Elite 341 mATX Microsoft Basic Mouse Hauppauge MCE Remote 
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post #4 of 4
As Noisetemper said you will get much better help once you fill out your system specs in the Rigbuilder section smile.gif
Welcome to OCN!

EDIT: but to answer the question unless you have a terrible PSU you're absolutely fine

let us know what brand/model the power supply is
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---eYe SeVen---
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CPUMotherboardGraphicsRAM
i7 950 @ 4415 mhz Gigabyte X58A-OC ASUS ENGTX560 TI DCII G.Skill 6gb 2000 mhz CL9 
Hard DriveOptical DriveCoolingOS
Intel X25-M 120GB SSD Lite On/Asus Corsair/Asus DCUII Windows 7 64-bit 
MonitorKeyboardPowerCase
Samsung 23" LED HDMI Microsoft SideWinder X4 ABS Majesty 900watt Corsair Special Edition White 600T 
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