What wattage do I need for a psu

malcolm2608 · Jan 16, 2012

I have used the calculator in the sticked post in this forum section and newegg's one.
Newegg says I should use about 431w and the other calculator ( Im sorry I forgot the name of it ) said about 270 I think
I just need some one to confirm this is correct for this pc
Also this pc has an extra 5400rpm sata drive
I was thinking about getting a 500w psu
but Im not sure yet.
PC specs

TheLaughingMan · Jan 16, 2012

A 400W unit should be more than enough. A solid 350W unit should also be just fine.

malcolm2608 · Jan 16, 2012

TheLaughingMan said:
A 400W unit should be more than enough. A solid 350W unit should also be just fine.

Oh thank god, I knew I might have been over estimating how much power my computer uses.
I know I might need to get a little larger of a psu because im upgrading my gpu soon .

Play3r · Jan 16, 2012

out of curiousity. alot of stuff on that list is out of stock and if memory serves they only sell quad phenomII and up now.

malcolm2608 · Jan 16, 2012

Play3r said:
out of curiousity. alot of stuff on that list is out of stock and if memory serves they only sell quad phenomII and up now.

Well this is just a list of the part already in my pc , I already bought it .
I just need to upgrade my psu from the crappy one in the case

Play3r · Jan 16, 2012

ahhh righto

Norton · Jan 16, 2012

If you're upgrading your GPU you will need to account for the power draw from it and the # of 6/8 pin PCIE connectors it has.

Do you have a specific GPU in mind?

malcolm2608 · Jan 16, 2012

Norton said:
If you're upgrading your GPU you will need to account for the power draw from it and the # of 6/8 pin PCIE connectors it has.

Do you have a specific GPU in mind?

The HD 6770 looks nice

Norton · Jan 16, 2012

malcolm2608 said:
The HD 6770 looks nice

Recommended PSU is 450watt for that card and 1 PCIE connector. The 500 watt Coolermaster PSU you were looking would meet those specs and give you a little headroom.

As an option, you may want to look for a decent PSU with 550 watts or so w/2 PCIE connectors if you are going to go to a more powerful card (w/2 PCIE connectors) in the near future or overclock a little.

There's lots of opinions on PSU's out there- just list out your usage and budget and we can assist in finding you something decent. :cool:

cdawall · Jan 16, 2012

Even with that 6770 any good 400w would power that and your setup no issue. AMD spec's higher to make up for shitty OEM powersupplies.

TRWOV · Jan 16, 2012

Be advised, that Cooler Master PSU can't (safely) deliver its specified wattage. Use it as a 400w unit, above that load ripple starts to go beyond ATX specs.

For $45 I'd go for something like this: CORSAIR Builder Series CX430 V2 (CMPSU-430CXV2) 43...
Should be more than enough for you, even with an HD6770 in the cards.

Or spend an extra 10-15 bucks and get a better PSU. Don't skim on that, it's the heart of your PC. The CX430 should be plenty, though, if you want to leave it at that.

Norton · Jan 16, 2012

cdawall said:
Even with that 6770 any good 400w would power that and your setup no issue. AMD spec's higher to make up for shitty OEM powersupplies.

You're right! I forgot about the junk PSU's they throw into Dell's and etc....

@ cdawall- maybe a Corsair CX430 (430 watt-80plus) will be OK for the Op?

CORSAIR Builder Series CX430 V2 (CMPSU-430CXV2) 43...

cdawall · Jan 16, 2012

TRWOV said:
Be advised, that Cooler Master PSU can't (safely) deliver its specified wattage. Use it as a 400w unit, above that load ripple starts to go beyond ATX specs.

The new ones are great units. Go look at current reviews they have switched to a different OEM since the old days. On top of that at load his PC might pull 250w at the wall.

Norton said:
You're right! I forgot about the junk PSU's they throw into Dell's and etc....

@ cdawall- maybe a Corsair CX430 (430 watt-80plus) will be OK for the Op?

CORSAIR Builder Series CX430 V2 (CMPSU-430CXV2) 43...

It would be plenty they are good little PSU's

TRWOV · Jan 16, 2012

cdawall said:
The new ones are great units. Go look at current reviews they have switched to a different OEM since the old days. On top of that at load his PC might pull 250w at the wall.

Didn't know that. I think CM should rename the PSUs whenever that happens, maybe add a V2 like Corsair does.

Crap Daddy · Jan 16, 2012

I'd also support that Corsair. Or, a little more future proof if you might want a 6850/70 class card
this:

SeaSonic S12II 520 Bronze 520W ATX12V V2.3 / EPS 1...

jsfitz54 · Jan 16, 2012

AS A SIDE NOTE: One can use this to find how much juice is being pulled from wall:

P3 Kill A Watt Electricity Load Meter and Monitor

Sale prices are in the $17 dollar range.

brandonwh64 · Jan 16, 2012

Honestly, I would go for the Corsair CX600 due to the fact that you may upgrade soon and it would handle quite a bit for the price. Its better to get a good quality one now and not worry about it for a long while.

malcolm2608 · Jan 16, 2012

Thanks for the recommendations guys

brandonwh64 · Jan 16, 2012

malcolm2608 said:
Thanks for the recommendations guys

Your very welcome! I hope you enjoy your nice new PC! I am in the middle of a cheap HTPC build and PSU is one of my next things I have to tackle.

Processor	AMD Athlon II X3 445 Rana
Motherboard	BIOSTAR Group A780L3L
Memory	4.00 GB Single-Channel DDR3 ( forgot the company)
Video Card(s)	ATI Radeon HD 4600 Series (Sapphire/PCPartner)
Storage	313GB Western Digital (SATA),195GB SAMSUNG SAMSUNG ( SATA)
Display(s)	AOC 931W
Case	forgot lol
Audio Device(s)	Realtek High Definition Audio
Power Supply	500psu ( came with case )
Software	MS Windows 7 Home Premium 64-bit SP1

System Name	ODIN
Processor	AMD Ryzen 7 5800X
Motherboard	Gigabyte B550 Aorus Elite AX V2
Cooling	Dark Rock 4
Memory	G Skill RipjawsV F4 3600 Mhz C16
Video Card(s)	MSI GeForce RTX 3080 Ventus 3X OC LHR
Storage	Crucial 2 TB M.2 SSD :: WD Blue M.2 1TB SSD :: 1 TB WD Black VelociRaptor
Display(s)	Dell S2716DG 27" 144 Hz G-SYNC
Case	Fractal Meshify C
Audio Device(s)	Onboard Audio
Power Supply	Antec HCP 850 80+ Gold
Mouse	Corsair M65
Keyboard	Corsair K70 RGB Lux
Software	Windows 10 Pro 64-bit
Benchmark Scores	I don't benchmark.

Processor	AMD Athlon II X3 445 Rana
Motherboard	BIOSTAR Group A780L3L
Memory	4.00 GB Single-Channel DDR3 ( forgot the company)
Video Card(s)	ATI Radeon HD 4600 Series (Sapphire/PCPartner)
Storage	313GB Western Digital (SATA),195GB SAMSUNG SAMSUNG ( SATA)
Display(s)	AOC 931W
Case	forgot lol
Audio Device(s)	Realtek High Definition Audio
Power Supply	500psu ( came with case )
Software	MS Windows 7 Home Premium 64-bit SP1

System Name	SexMachine
Processor	Intel i5 750 @ 4Ghz 1.29v
Motherboard	Asus P7P55D Deluxe
Cooling	Prolimatech Mega Shadow
Memory	Corsair CM3X2G1600C9DHX 4GBs @ 800Mhz @ 9-9-9-24
Video Card(s)	VTx3d 6950 Modded +200 900mhz/1375mhz
Storage	120GB Corsiar Force 3, 2 1TBs, 6 1.5TBs, 3 2TBs
Display(s)	BenQ XL2410T & Samsung SyncMaster 2693HM + Dell U2410
Case	Lian Li PC-A70FB Black
Audio Device(s)	Asus Xonar Essence ST
Power Supply	CORSAIR 750W TX-750W POWER SUPPLY
Software	Microsoft Windows 7 Ultimate 64bit
Benchmark Scores	Benchmark ALL THE THINGS

Processor	AMD Athlon II X3 445 Rana
Motherboard	BIOSTAR Group A780L3L
Memory	4.00 GB Single-Channel DDR3 ( forgot the company)
Video Card(s)	ATI Radeon HD 4600 Series (Sapphire/PCPartner)
Storage	313GB Western Digital (SATA),195GB SAMSUNG SAMSUNG ( SATA)
Display(s)	AOC 931W
Case	forgot lol
Audio Device(s)	Realtek High Definition Audio
Power Supply	500psu ( came with case )
Software	MS Windows 7 Home Premium 64-bit SP1

What wattage do I need for a psu

malcolm2608

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TheLaughingMan

malcolm2608

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Play3r

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malcolm2608

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Play3r

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Norton

Moderator - Returning from the Darkness

malcolm2608

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Norton

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cdawall

where the hell are my stars

TRWOV

Norton

Moderator - Returning from the Darkness

cdawall

where the hell are my stars

TRWOV

Crap Daddy

jsfitz54

brandonwh64

Addicted to Bacon and StarCrunches!!!

malcolm2608

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brandonwh64

Addicted to Bacon and StarCrunches!!!

System Name	Main PC- Gamer- Main Cruncher/Folder and too many crunching/folding rigs
Processor	Ryzen 5900X- Ryzen 5950X- Ryzen 3950X and etc...
Motherboard	Asrock X570 Extreme4- MSI X570S Tomahawk MAX WiFi- MSI B450M Bazooka Max and etc...
Cooling	Noctua NH-U14S (dual fan)- EK 360 AIO with push/pull fans- Corsair H115i RGB Pro XT and etc...
Memory	2x16GB GSkill FlareX 3200/c14- 4x8GB Corsair Vengeance 3600/c16- 2x16GB Team 3600/c18 and etc..
Video Card(s)	MSI Gaming RX 6800- Asus RTX 3070 TUF OC- MSI Ventus GTX 1660Ti and etc...
Storage	Main PC (1TB WD SN850- 2TB PNY CS 3040- 2TB Seagate Firecuda) and etc...
Display(s)	Main PC (2x24" Dell UltraSharp U2414H)
Case	Phanteks P600s- Seasonic Q704- Fractal Meshify C and etc...
Audio Device(s)	Logitech Z625 THX 2.1 speakers
Power Supply	EVGA 750 G3- SeaSonic DGC 750- EVGA P2 850 and etc...
Mouse	G300s
Keyboard	Corsair K65
VR HMD	N/A
Software	Windows 10 Pro or Ubuntu
Benchmark Scores	Why sit on the Bench when you can get in the game and Crunch!!!

System Name	Moving into the mobile space
Processor	7940HS
Motherboard	HP trash
Cooling	HP trash
Memory	2x8GB
Video Card(s)	4070 mobile
Storage	512GB+2TB NVME
Display(s)	some 165hz thing that isn't as nice as it sounded

System Name	Dell-y Driver
Processor	Core i5-10400
Motherboard	Asrock H410M-HVS
Cooling	Intel 95w stock cooler
Memory	2x8 A-DATA 2999Mhz DDR4
Video Card(s)	UHD 630
Storage	1TB WD Green M.2 - 4TB Seagate Barracuda
Display(s)	Asus PA248 1920x1200 IPS
Case	Dell Vostro 270S case
Audio Device(s)	Onboard
Power Supply	Dell 220w
Software	Windows 10 64bit

System Name	Old Fart / Young Dude
Processor	2500K / 6600K
Motherboard	ASRock P67Extreme4 / Gigabyte GA-Z170-HD3 DDR3
Cooling	CM Hyper TX3 / CM Hyper 212 EVO
Memory	16 GB Kingston HyperX / 16 GB G.Skill Ripjaws X
Video Card(s)	Gigabyte GTX 1050 Ti / INNO3D RTX 2060
Storage	SSD, some WD and lots of Samsungs
Display(s)	BenQ GW2470 / LG UHD 43" TV
Case	Cooler Master CM690 II Advanced / Thermaltake Core v31
Audio Device(s)	Asus Xonar D1/Denon PMA500AE/Wharfedale D 10.1/ FiiO D03K/ JBL LSR 305
Power Supply	Corsair TX650 / Corsair TX650M
Mouse	Steelseries Rival 100 / Rival 110
Keyboard	Sidewinder/ Steelseries Apex 150
Software	Windows 10 / Windows 10 Pro

Processor	Intel i7 970 // Intel i7 2600K
Motherboard	Asus Rampage III Formula // Asus P8P67 Deluxe
Cooling	Zalman CNPS9900MaxB // Zalman CNPS11X
Memory	GSkill 2133 12GB // Corsair V 2400 32GB
Video Card(s)	ASUS GTX1080 // MSI GTX1070
Storage	Samsung 870EVO // Samsung 840P
Display(s)	HP w2207h
Case	CoolerMaster Stacker 830se // Lian Li PC-9F
Audio Device(s)	onboard
Power Supply	Seasonic X 850w Gold // EVGA 850w G2
Mouse	Logitech G502SE HERO, G9
Keyboard	Dell
Software	W10 Pro 22H2