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Is my 750w power supply enough?

post #1 of 11
Thread Starter 
I recently built my first computer >

Intel Core i7 3930k @ 3.2ghz (turbo 3.8ghz)
Asus Sabertooth x79 motherboard
Corsair H100 liquid cooling
MSI Radeon HD 7950 graphics card
16gb Corsair vengeance memory (4x4)
Corsair 750w power supply
Lite-on Blu-ray Burner drive
DVD-reader drive
ATF media card reader
256gb SSD
1tb HDD @ 7200rpm
250gb HDD @ 7200rpm

I want to overclock my CPU to 4.5-4.8ghz, and I read that definitely increases the watt consumption by a lot. However I have yet to find any apps or programs that tell me while my PC is running how many watts I'm drawing. Will the 750w be enough for all that + an over clocked CPU? I assumed originally that if I didn't have enough watts the PC would simply shut off, but after reading a few horror stories of the PSU frying some PCs in the process, I'm a little worried I didn't get a 1000watt PSU.

Thanks!
post #2 of 11
Your 750w PSU is more than enough thumb.gif
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Seagate Barracuda 500GB Crucial M4 128GB Noctua NH-L12 Windows 7 Pro 64Bit  
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post #3 of 11
A quality 550w would do the job fine.

Cpu is a power hog at a 4.8GHz OC, but your GPU, even OC'd, is pretty efficient.
    
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OCZ Vertex 4 256gb LG BluRay Burner EK Supreme HF/rx360/rx120/GT AP14/MCP655 EK-FC TITAN XXL Edition 
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OCZ Vertex 4 256gb LG BluRay Burner EK Supreme HF/rx360/rx120/GT AP14/MCP655 EK-FC TITAN XXL Edition 
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post #4 of 11
I was running an i5-2500k @ 4.5Ghz with a 580 on a 600w crapola PSU and was just fine, well, if you consider lights flickering in your case fine then yea. My 750w Rosewill PSU has been a champ so far! Not 1 problem. Nice high 12v line!
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post #5 of 11
Well if your worried you need a 1000 watt you need at least what another 10k-70k USD in hardware? maybe 80SSD, two xeon 8 cores, tow dual GPU cards, a sound card, two blu rays drives, about 16 high cfm fans, two - four water pumps, raid card... hmm even then 750w would still be over kill.
Chris-PC
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Phenom II 1100T AsRock Extreme4 990FX HD4850 HD4850 
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Kingston HyperX DDR3 KHX1600C9D3K2/8G Barracuda 7200.10 WD Green Crucial M4 
CoolingOSMonitorMonitor
EVGA Superclock CPU Cooler Win 7 Ultimate 64bit Hanns,G Hi221 Dell E198WFP 
KeyboardPowerCaseAudio
Saitek Eclipse Corsair TX850W NZXT M59 Asus Xonar D1 
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C2Q Q9550 ASUS P5E3 Deluxe Wifi-AP GTX 570 Samsung Green 
Hard DriveCoolingOSOS
55gb, 320Gb, 500GB, 1TB Hyper 212 EVO Win 7 Ultimate 64bit Lubuntu 12.10 x64 
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Chris-PC
(16 items)
 
Core 2 Haf
(15 items)
 
Acer 5920G
(13 items)
 
CPUMotherboardGraphicsGraphics
Phenom II 1100T AsRock Extreme4 990FX HD4850 HD4850 
RAMHard DriveHard DriveHard Drive
Kingston HyperX DDR3 KHX1600C9D3K2/8G Barracuda 7200.10 WD Green Crucial M4 
CoolingOSMonitorMonitor
EVGA Superclock CPU Cooler Win 7 Ultimate 64bit Hanns,G Hi221 Dell E198WFP 
KeyboardPowerCaseAudio
Saitek Eclipse Corsair TX850W NZXT M59 Asus Xonar D1 
CPUMotherboardGraphicsRAM
C2Q Q9550 ASUS P5E3 Deluxe Wifi-AP GTX 570 Samsung Green 
Hard DriveCoolingOSOS
55gb, 320Gb, 500GB, 1TB Hyper 212 EVO Win 7 Ultimate 64bit Lubuntu 12.10 x64 
OSPowerCase
OS X 10.6.8 TX750 Haf 912 
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T9300 GT 240M DDR2  WD10JPVT 
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post #6 of 11
Yes the PSU will do fine in your setup smile.gif
Quote:
Originally Posted by cdoublejj View Post

Well if your worried you need a 1000 watt you need at least what another 10k-70k USD in hardware? maybe 80SSD, two xeon 8 cores, tow dual GPU cards, a sound card, two blu rays drives, about 16 high cfm fans, two - four water pumps, raid card... hmm even then 750w would still be over kill.

That has got to be the stupidest post I've seen in a while...LOL
My System
(30 items)
 
"Zeus"
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i5 2500K (4.5ghz @ 1.320v) Gigabyte Z68X-UD3R-B3 MSI R7970 Lightning Corsair 16GB (4x4GB) 
Hard DriveHard DriveHard DriveHard Drive
Plextor PX-256M5S 256GB Crucial M4 128GB Hitachi HDS721010CLA332 Hitachi HDS723020BLA642 
Hard DriveHard DriveHard DriveOptical Drive
Hitachi HDS723020BLA642 Hitachi HUA722010CLA330 WDC WD10EARS-00Z5B1 TSSTcorp CDDVDW SH-S223B 
CoolingCoolingOSMonitor
Phanteks PH-TC14PE with TY-140's Lamptron FCv5 (x2) Windows 7 Ultimate 64-bit Dell U2412M 
MonitorMonitorMonitorKeyboard
Dell U2412M Dell U2212HM Dell U2212HM Ducky DK9087 G2 Pro 
PowerCaseMouseMouse Pad
Corsair AX-750 Corsair Obsidian 650D Microsoft IntelliMouse Optical  XTRAC Ripper XXL 
AudioAudioAudioAudio
Westone W3 IEMs RE-272 IEMs Shure SE-215 IEMs Schiit Bifrost DAC 
AudioAudio
Schiit Asgard 2 amp HiVi Swan M50W 2.1 
CPUMotherboardGraphicsRAM
Intel Core i7 950 GA-X58-UD3R Radeon HD 5450  24GB Corsair @ 1333mhz 
Hard DriveOSPowerCase
4x WD Cavair Red 1TB in RAID 0 Windows Server 2008 R2 x64 Corsair HX-520 LianLi LanCool 
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My System
(30 items)
 
"Zeus"
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i5 2500K (4.5ghz @ 1.320v) Gigabyte Z68X-UD3R-B3 MSI R7970 Lightning Corsair 16GB (4x4GB) 
Hard DriveHard DriveHard DriveHard Drive
Plextor PX-256M5S 256GB Crucial M4 128GB Hitachi HDS721010CLA332 Hitachi HDS723020BLA642 
Hard DriveHard DriveHard DriveOptical Drive
Hitachi HDS723020BLA642 Hitachi HUA722010CLA330 WDC WD10EARS-00Z5B1 TSSTcorp CDDVDW SH-S223B 
CoolingCoolingOSMonitor
Phanteks PH-TC14PE with TY-140's Lamptron FCv5 (x2) Windows 7 Ultimate 64-bit Dell U2412M 
MonitorMonitorMonitorKeyboard
Dell U2412M Dell U2212HM Dell U2212HM Ducky DK9087 G2 Pro 
PowerCaseMouseMouse Pad
Corsair AX-750 Corsair Obsidian 650D Microsoft IntelliMouse Optical  XTRAC Ripper XXL 
AudioAudioAudioAudio
Westone W3 IEMs RE-272 IEMs Shure SE-215 IEMs Schiit Bifrost DAC 
AudioAudio
Schiit Asgard 2 amp HiVi Swan M50W 2.1 
CPUMotherboardGraphicsRAM
Intel Core i7 950 GA-X58-UD3R Radeon HD 5450  24GB Corsair @ 1333mhz 
Hard DriveOSPowerCase
4x WD Cavair Red 1TB in RAID 0 Windows Server 2008 R2 x64 Corsair HX-520 LianLi LanCool 
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post #7 of 11
Quote:
Originally Posted by YamiJustin View Post

I recently built my first computer >
Intel Core i7 3930k @ 3.2ghz (turbo 3.8ghz)
Asus Sabertooth x79 motherboard
Corsair H100 liquid cooling
MSI Radeon HD 7950 graphics card
16gb Corsair vengeance memory (4x4)
Corsair 750w power supply
Lite-on Blu-ray Burner drive
DVD-reader drive
ATF media card reader
256gb SSD
1tb HDD @ 7200rpm
250gb HDD @ 7200rpm
I want to overclock my CPU to 4.5-4.8ghz, and I read that definitely increases the watt consumption by a lot. However I have yet to find any apps or programs that tell me while my PC is running how many watts I'm drawing. Will the 750w be enough for all that + an over clocked CPU? I assumed originally that if I didn't have enough watts the PC would simply shut off, but after reading a few horror stories of the PSU frying some PCs in the process, I'm a little worried I didn't get a 1000watt PSU.
Thanks!
You can add another 7950 and it will still be overkill.
post #8 of 11
Quote:
Originally Posted by tompsonn View Post

Yes the PSU will do fine in your setup smile.gif
That has got to be the stupidest post I've seen in a while...LOL

aside form the typo's that was kind of the point, i know my 850 corsair puts out some thing like 70 amps on the 12v that's just insanely sick. Don't believe me? check out how many amps generators put out or how many amps a refrigerator pulls, all be it at higher volts but, you get the idea.
Chris-PC
(16 items)
 
Core 2 Haf
(15 items)
 
Acer 5920G
(13 items)
 
CPUMotherboardGraphicsGraphics
Phenom II 1100T AsRock Extreme4 990FX HD4850 HD4850 
RAMHard DriveHard DriveHard Drive
Kingston HyperX DDR3 KHX1600C9D3K2/8G Barracuda 7200.10 WD Green Crucial M4 
CoolingOSMonitorMonitor
EVGA Superclock CPU Cooler Win 7 Ultimate 64bit Hanns,G Hi221 Dell E198WFP 
KeyboardPowerCaseAudio
Saitek Eclipse Corsair TX850W NZXT M59 Asus Xonar D1 
CPUMotherboardGraphicsRAM
C2Q Q9550 ASUS P5E3 Deluxe Wifi-AP GTX 570 Samsung Green 
Hard DriveCoolingOSOS
55gb, 320Gb, 500GB, 1TB Hyper 212 EVO Win 7 Ultimate 64bit Lubuntu 12.10 x64 
OSPowerCase
OS X 10.6.8 TX750 Haf 912 
CPUGraphicsRAMHard Drive
T9300 GT 240M DDR2  WD10JPVT 
OS
Win 7 Ultimate 64bit 
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Chris-PC
(16 items)
 
Core 2 Haf
(15 items)
 
Acer 5920G
(13 items)
 
CPUMotherboardGraphicsGraphics
Phenom II 1100T AsRock Extreme4 990FX HD4850 HD4850 
RAMHard DriveHard DriveHard Drive
Kingston HyperX DDR3 KHX1600C9D3K2/8G Barracuda 7200.10 WD Green Crucial M4 
CoolingOSMonitorMonitor
EVGA Superclock CPU Cooler Win 7 Ultimate 64bit Hanns,G Hi221 Dell E198WFP 
KeyboardPowerCaseAudio
Saitek Eclipse Corsair TX850W NZXT M59 Asus Xonar D1 
CPUMotherboardGraphicsRAM
C2Q Q9550 ASUS P5E3 Deluxe Wifi-AP GTX 570 Samsung Green 
Hard DriveCoolingOSOS
55gb, 320Gb, 500GB, 1TB Hyper 212 EVO Win 7 Ultimate 64bit Lubuntu 12.10 x64 
OSPowerCase
OS X 10.6.8 TX750 Haf 912 
CPUGraphicsRAMHard Drive
T9300 GT 240M DDR2  WD10JPVT 
OS
Win 7 Ultimate 64bit 
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post #9 of 11
Quote:
Originally Posted by cdoublejj View Post

aside form the typo's that was kind of the point, i know my 850 corsair puts out some thing like 70 amps on the 12v that's just insanely sick. Don't believe me? check out how many amps generators put out or how many amps a refrigerator pulls, all be it at higher volts but, you get the idea.

Ah mate I was just messin' ! wink.gif

But you'd be a bit silly to try and actually draw 70A from the 12V line, wouldn't you? smile.gif I do believe you anyway, says so on the Corsair spec sheet biggrin.gif
My System
(30 items)
 
"Zeus"
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i5 2500K (4.5ghz @ 1.320v) Gigabyte Z68X-UD3R-B3 MSI R7970 Lightning Corsair 16GB (4x4GB) 
Hard DriveHard DriveHard DriveHard Drive
Plextor PX-256M5S 256GB Crucial M4 128GB Hitachi HDS721010CLA332 Hitachi HDS723020BLA642 
Hard DriveHard DriveHard DriveOptical Drive
Hitachi HDS723020BLA642 Hitachi HUA722010CLA330 WDC WD10EARS-00Z5B1 TSSTcorp CDDVDW SH-S223B 
CoolingCoolingOSMonitor
Phanteks PH-TC14PE with TY-140's Lamptron FCv5 (x2) Windows 7 Ultimate 64-bit Dell U2412M 
MonitorMonitorMonitorKeyboard
Dell U2412M Dell U2212HM Dell U2212HM Ducky DK9087 G2 Pro 
PowerCaseMouseMouse Pad
Corsair AX-750 Corsair Obsidian 650D Microsoft IntelliMouse Optical  XTRAC Ripper XXL 
AudioAudioAudioAudio
Westone W3 IEMs RE-272 IEMs Shure SE-215 IEMs Schiit Bifrost DAC 
AudioAudio
Schiit Asgard 2 amp HiVi Swan M50W 2.1 
CPUMotherboardGraphicsRAM
Intel Core i7 950 GA-X58-UD3R Radeon HD 5450  24GB Corsair @ 1333mhz 
Hard DriveOSPowerCase
4x WD Cavair Red 1TB in RAID 0 Windows Server 2008 R2 x64 Corsair HX-520 LianLi LanCool 
  hide details  
Reply
My System
(30 items)
 
"Zeus"
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i5 2500K (4.5ghz @ 1.320v) Gigabyte Z68X-UD3R-B3 MSI R7970 Lightning Corsair 16GB (4x4GB) 
Hard DriveHard DriveHard DriveHard Drive
Plextor PX-256M5S 256GB Crucial M4 128GB Hitachi HDS721010CLA332 Hitachi HDS723020BLA642 
Hard DriveHard DriveHard DriveOptical Drive
Hitachi HDS723020BLA642 Hitachi HUA722010CLA330 WDC WD10EARS-00Z5B1 TSSTcorp CDDVDW SH-S223B 
CoolingCoolingOSMonitor
Phanteks PH-TC14PE with TY-140's Lamptron FCv5 (x2) Windows 7 Ultimate 64-bit Dell U2412M 
MonitorMonitorMonitorKeyboard
Dell U2412M Dell U2212HM Dell U2212HM Ducky DK9087 G2 Pro 
PowerCaseMouseMouse Pad
Corsair AX-750 Corsair Obsidian 650D Microsoft IntelliMouse Optical  XTRAC Ripper XXL 
AudioAudioAudioAudio
Westone W3 IEMs RE-272 IEMs Shure SE-215 IEMs Schiit Bifrost DAC 
AudioAudio
Schiit Asgard 2 amp HiVi Swan M50W 2.1 
CPUMotherboardGraphicsRAM
Intel Core i7 950 GA-X58-UD3R Radeon HD 5450  24GB Corsair @ 1333mhz 
Hard DriveOSPowerCase
4x WD Cavair Red 1TB in RAID 0 Windows Server 2008 R2 x64 Corsair HX-520 LianLi LanCool 
  hide details  
Reply
post #10 of 11
Any legitimate 750w power supply can power that rig, even with an overclock.
My PC
(15 items)
 
   
CPUMotherboardGraphicsRAM
FX-8350 Gigabyte GA-970A-UD3 Radeon HD6790 8 GB Crucial 
Hard DriveOptical DriveCoolingOS
Seagate Momentus XT 500GB, Hitachi 1 TB dual DVD-RW drives SilverStone Heligon HE01 Windows 7 x64 Home Premium 
MonitorKeyboardPowerCase
Dell P1130 21" CRT IBM Model M Ultra LSX 750 Antec SX1040B 
MouseAudio
Logitech Marble Mouse ASUS Xonar DG 
CPUGraphicsRAMHard Drive
Intel Core2 Duo T7200 Mobility Radeon XPress 200 2GB Micron DDR2 Seagate Momentus XT 500GB 
Optical DriveOSAudio
stock DVD/CDR Windows XP Pro x64 Edition Realtek HD Audio 
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My PC
(15 items)
 
   
CPUMotherboardGraphicsRAM
FX-8350 Gigabyte GA-970A-UD3 Radeon HD6790 8 GB Crucial 
Hard DriveOptical DriveCoolingOS
Seagate Momentus XT 500GB, Hitachi 1 TB dual DVD-RW drives SilverStone Heligon HE01 Windows 7 x64 Home Premium 
MonitorKeyboardPowerCase
Dell P1130 21" CRT IBM Model M Ultra LSX 750 Antec SX1040B 
MouseAudio
Logitech Marble Mouse ASUS Xonar DG 
CPUGraphicsRAMHard Drive
Intel Core2 Duo T7200 Mobility Radeon XPress 200 2GB Micron DDR2 Seagate Momentus XT 500GB 
Optical DriveOSAudio
stock DVD/CDR Windows XP Pro x64 Edition Realtek HD Audio 
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