• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Which power supply is better?

Joined
Jan 12, 2010
Messages
212 (0.04/day)
Processor amd fx8350 4.0ghz stock speeds 8cores
Motherboard Asus m5a99fx pro r2.0
Cooling coolermaster nepton 280L
Memory 16gb RAM
Video Card(s) gigabyte windforce r9 290
Storage OCZ 120gb SSD and 1tb hitachi HDD
Display(s) AOC 2436 24inch FULL HD
Case corsair 750D
Power Supply CORSAIR HX series 850w
Software WINDOWS 7 64bit
Ocz fatality 550w or coolermaster realpower 550w and do you guys reckon the ocz 550w will be able to power a radeon 7870, amd 1100t 3.3ghz 6cores, 1tb Sata internal hard drive and 8gb ram?
 

OneMoar

There is Always Moar
Joined
Apr 9, 2010
Messages
8,741 (1.71/day)
Location
Rochester area
System Name RPC MK2.5
Processor Ryzen 5800x
Motherboard Gigabyte Aorus Pro V2
Cooling Enermax ETX-T50RGB
Memory CL16 BL2K16G36C16U4RL 3600 1:1 micron e-die
Video Card(s) GIGABYTE RTX 3070 Ti GAMING OC
Storage ADATA SX8200PRO NVME 512GB, Intel 545s 500GBSSD, ADATA SU800 SSD, 3TB Spinner
Display(s) LG Ultra Gear 32 1440p 165hz Dell 1440p 75hz
Case Phanteks P300 /w 300A front panel conversion
Audio Device(s) onboard
Power Supply SeaSonic Focus+ Platinum 750W
Mouse Kone burst Pro
Keyboard EVGA Z15
Software Windows 11 +startisallback
neither there both junk and yes any (QUALITY) 550 Watt will do the job
 
Joined
Jan 12, 2010
Messages
212 (0.04/day)
Processor amd fx8350 4.0ghz stock speeds 8cores
Motherboard Asus m5a99fx pro r2.0
Cooling coolermaster nepton 280L
Memory 16gb RAM
Video Card(s) gigabyte windforce r9 290
Storage OCZ 120gb SSD and 1tb hitachi HDD
Display(s) AOC 2436 24inch FULL HD
Case corsair 750D
Power Supply CORSAIR HX series 850w
Software WINDOWS 7 64bit
So does that mean my ocz 550w can do the job?
Edit: it has 25amps on every rail and looking at both of the power supplies specifications my ocz seems to be better then the coolermaster
 

OneMoar

There is Always Moar
Joined
Apr 9, 2010
Messages
8,741 (1.71/day)
Location
Rochester area
System Name RPC MK2.5
Processor Ryzen 5800x
Motherboard Gigabyte Aorus Pro V2
Cooling Enermax ETX-T50RGB
Memory CL16 BL2K16G36C16U4RL 3600 1:1 micron e-die
Video Card(s) GIGABYTE RTX 3070 Ti GAMING OC
Storage ADATA SX8200PRO NVME 512GB, Intel 545s 500GBSSD, ADATA SU800 SSD, 3TB Spinner
Display(s) LG Ultra Gear 32 1440p 165hz Dell 1440p 75hz
Case Phanteks P300 /w 300A front panel conversion
Audio Device(s) onboard
Power Supply SeaSonic Focus+ Platinum 750W
Mouse Kone burst Pro
Keyboard EVGA Z15
Software Windows 11 +startisallback
So does that mean my ocz 550w can do the job?

what model are you looking at some of the OCZ ones are all right some are utter crap

there is more to a psu then the rated wattage

SILVERSTONE Strider Essential series ST60F-ES 600W...

So does that mean my ocz 550w can do the job?
Edit: it has 25amps on every rail and looking at both of the power supplies specifications my ocz seems to be better then the coolermaster

WHAT IS THE MODEL
that doesn't mean jackshit
 
Last edited by a moderator:
Joined
Feb 17, 2012
Messages
376 (0.08/day)
Location
The city with the former druggie Mayor
System Name That computer
Processor Intel I7 960 OC @ 4GHz
Motherboard Gigabyte G.1 Guerilla
Cooling Corsair H80
Memory 12gb G.Skill DDR3 1333MHz
Video Card(s) Gigabyte Radeon 6950 2GB
Storage 120GB Samsung 840, 2x 1TB WD Black Raid 0
Display(s) 2X ACER S232HL
Case Thermaltake Amour A90
Audio Device(s) Asus Xonar DX
Power Supply 600W OCZ MODXSTREAM PRO
Software Windows 7 Ultimate x64
I personally wouldn't go with OCZ. They are on the verge of bankruptcy so they may not honour your warranty in the future and they have short poorly sleeved cables. I would recommend a seasonic, corsiar, xfx, NZXT, or BE QUIET! as they tend to be more reliable and have longer high quality sleeving on the cables. other than that 550W should be fine.
 
Joined
Jan 12, 2010
Messages
212 (0.04/day)
Processor amd fx8350 4.0ghz stock speeds 8cores
Motherboard Asus m5a99fx pro r2.0
Cooling coolermaster nepton 280L
Memory 16gb RAM
Video Card(s) gigabyte windforce r9 290
Storage OCZ 120gb SSD and 1tb hitachi HDD
Display(s) AOC 2436 24inch FULL HD
Case corsair 750D
Power Supply CORSAIR HX series 850w
Software WINDOWS 7 64bit
I said the model up top ocz fatality 550w
Edit: to clear any confusions I've got the ocz fatality 550w and was just wondering if it can handle the setup I will be having and if its better then the coolermaster I mentioned.
 
Last edited:
Joined
May 14, 2009
Messages
2,132 (0.39/day)
Location
Chicago burbs
System Name Halloween Boo!
Processor Intel Core i7 3770K
Motherboard Gigabyte Z77-Up7
Cooling Custom Water/ Thermalchill TA 120.3/ Swiftech Apogeee XT/ MCP655/ Swiftech M icrores/ XSPC RX 240
Memory 16G G.Skill trident 2400MHz
Video Card(s) 3 x Radeon 7970
Storage OCZ Revo Drive 240G
Display(s) 24 inch Viewsonic
Case Phobia WayCoolIt Test Bench
Power Supply Nexus 1100 watt
neither there both junk and yes any (QUALITY) 550 Watt will do the job

Why anybody listens to him...... The OCZ fatality 550 is also not a top of the line by no means but will do the job. It is 80+ Certified but in testing, the 3 volt rail was a bit weak but within specs....
 
Last edited:
Joined
Jul 10, 2008
Messages
582 (0.10/day)
Location
Dallas, Oregon
System Name Custom FX
Processor AMD Ryzen 5 1600X @ 4Ghz
Motherboard MSI B350 Tomahawk
Cooling EK A240 Kit
Memory G.SKILL G.SKILL Ripjaws V Series DDR4 3200 8GB
Video Card(s) EVGA GeForce RTX 2070 FTW3 Ultra
Storage SAMSUNG 960 EVO M.2 250GB NVMe OS Drive/Seagate Hybrid SSHD ST1000LM014 1TB MLC/8GB 64MB Cache
Display(s) ASUS VE228H 21.5 inch
Case Raijintek Thetis
Audio Device(s) Realtek ALC892
Power Supply Silverstone Strider 750 Plus 750W Modular
Mouse Red Dragon M715 Dagger
Keyboard Corsair Strafe
Software Windows 10 Pro
@drdeathx
Do you mean 3 volt rail which is actully 3.3 volt there is no 3 amp rail

I surly hope you diden't just buy that PSU just for the looks and the retarded fatality name. Which is funny most of the stuff with that fatality name is crap. But that OCZ PSU is ok not the best 550watt but decent and way better then the coolermaster PSU
 
Joined
Jan 12, 2010
Messages
212 (0.04/day)
Processor amd fx8350 4.0ghz stock speeds 8cores
Motherboard Asus m5a99fx pro r2.0
Cooling coolermaster nepton 280L
Memory 16gb RAM
Video Card(s) gigabyte windforce r9 290
Storage OCZ 120gb SSD and 1tb hitachi HDD
Display(s) AOC 2436 24inch FULL HD
Case corsair 750D
Power Supply CORSAIR HX series 850w
Software WINDOWS 7 64bit
Lol nope, apparently I was told it was good and I"be had it for about 2 years now possibly less so yeah...
 
Joined
May 14, 2009
Messages
2,132 (0.39/day)
Location
Chicago burbs
System Name Halloween Boo!
Processor Intel Core i7 3770K
Motherboard Gigabyte Z77-Up7
Cooling Custom Water/ Thermalchill TA 120.3/ Swiftech Apogeee XT/ MCP655/ Swiftech M icrores/ XSPC RX 240
Memory 16G G.Skill trident 2400MHz
Video Card(s) 3 x Radeon 7970
Storage OCZ Revo Drive 240G
Display(s) 24 inch Viewsonic
Case Phobia WayCoolIt Test Bench
Power Supply Nexus 1100 watt
@drdeathx
Do you mean 3 volt rail which is actully 3.3 volt there is no 3 amp rail

I surly hope you diden't just buy that PSU just for the looks and the retarded fatality name. Which is funny most of the stuff with that fatality name is crap. But that OCZ PSU is ok not the best 550watt but decent and way better then the coolermaster PSU

yes..... and there are better but the 12 volt rail tested very good on it.
 
Joined
Jan 12, 2010
Messages
212 (0.04/day)
Processor amd fx8350 4.0ghz stock speeds 8cores
Motherboard Asus m5a99fx pro r2.0
Cooling coolermaster nepton 280L
Memory 16gb RAM
Video Card(s) gigabyte windforce r9 290
Storage OCZ 120gb SSD and 1tb hitachi HDD
Display(s) AOC 2436 24inch FULL HD
Case corsair 750D
Power Supply CORSAIR HX series 850w
Software WINDOWS 7 64bit
I've already got the whole computer I'm just upgrading from a 5770 to the 7870. just Making sure my power supply can handle a new beastly card like the 7870
 

OneMoar

There is Always Moar
Joined
Apr 9, 2010
Messages
8,741 (1.71/day)
Location
Rochester area
System Name RPC MK2.5
Processor Ryzen 5800x
Motherboard Gigabyte Aorus Pro V2
Cooling Enermax ETX-T50RGB
Memory CL16 BL2K16G36C16U4RL 3600 1:1 micron e-die
Video Card(s) GIGABYTE RTX 3070 Ti GAMING OC
Storage ADATA SX8200PRO NVME 512GB, Intel 545s 500GBSSD, ADATA SU800 SSD, 3TB Spinner
Display(s) LG Ultra Gear 32 1440p 165hz Dell 1440p 75hz
Case Phanteks P300 /w 300A front panel conversion
Audio Device(s) onboard
Power Supply SeaSonic Focus+ Platinum 750W
Mouse Kone burst Pro
Keyboard EVGA Z15
Software Windows 11 +startisallback
Why anybody listens to him...... The OCZ fatality 550 is also not a top of the line by no means but will do the job. It is 80+ Certified but in testing, the 3 volt rail was a bit weak but within specs....

note the post where I said SOME Ocz psu are OK I own a OZC 500 its been running strong for going on 6 years but with OZC's track-record with RMA's I would't buy one new if it was the last psu on earth
since you already have it yes it will do the job but if you get stablity issues or random power offs you will know where to look first :roll:
 
Joined
Jan 12, 2010
Messages
212 (0.04/day)
Processor amd fx8350 4.0ghz stock speeds 8cores
Motherboard Asus m5a99fx pro r2.0
Cooling coolermaster nepton 280L
Memory 16gb RAM
Video Card(s) gigabyte windforce r9 290
Storage OCZ 120gb SSD and 1tb hitachi HDD
Display(s) AOC 2436 24inch FULL HD
Case corsair 750D
Power Supply CORSAIR HX series 850w
Software WINDOWS 7 64bit
Alright thanks, hopefully it's ok and I won't have to get a new one
 
Joined
Nov 8, 2009
Messages
276 (0.05/day)
Location
Bolton, England.
System Name Raptor Lake
Processor 13900KF
Motherboard Rog Strix Z790-E Gaming Wifi
Cooling Arctic Liquid Freezer II 420
Memory 32GB DDR5
Video Card(s) MSI RTX 3080 ti Suprim X
Storage Samsung 970 Pro SSD(512) NVMe + 850 evo ssd (500) WD 2GB NVME pcie4
Display(s) Samsung Neo 32inch curved 240hz
Case THERMALTAKE CORE X2
Audio Device(s) Rotel 1572 mk ii
Power Supply 1000W
Mouse Logitech G502
Keyboard Steel Series Apex Pro
Software windows 11Pro x64
80 amp single rail :) i never liked these multi rail psu's, fried a few with my gfx card, specially corsairs.

and what is it with fans in psu's they all fail or rattle to death.

mho
 

Frick

Fishfaced Nincompoop
Joined
Feb 27, 2006
Messages
18,914 (2.86/day)
Location
Piteå
System Name Black MC in Tokyo
Processor Ryzen 5 5600
Motherboard Asrock B450M-HDV
Cooling Be Quiet! Pure Rock 2
Memory 2 x 16GB Kingston Fury 3400mhz
Video Card(s) XFX 6950XT Speedster MERC 319
Storage Kingston A400 240GB | WD Black SN750 2TB |WD Blue 1TB x 2 | Toshiba P300 2TB | Seagate Expansion 8TB
Display(s) Samsung U32J590U 4K + BenQ GL2450HT 1080p
Case Fractal Design Define R4
Audio Device(s) Line6 UX1 + some headphones, Nektar SE61 keyboard
Power Supply Corsair RM850x v3
Mouse Logitech G602
Keyboard Cherry MX Board 1.0 TKL Brown
VR HMD Acer Mixed Reality Headset
Software Windows 10 Pro
Benchmark Scores Rimworld 4K ready!
The Cooler Master is pretty old, the OCZ is fine. Don't listen to OneMoar, he's angry and bitter.

80 amp single rail :) i never liked these multi rail psu's, fried a few with my gfx card, specially corsairs.

and what is it with fans in psu's they all fail or rattle to death.

mho

When you get to those number I want them to be multirail actually. And it has nothing to do with them frying, and no, not all fans fail or rattle to death. In fact, almost none of them do that!
 
Joined
Oct 17, 2012
Messages
9,781 (2.34/day)
Location
Massachusetts
System Name Americas cure is the death of Social Justice & Political Correctness
Processor i7-11700K
Motherboard Asrock Z590 Extreme wifi 6E
Cooling Noctua NH-U12A
Memory 32GB Corsair RGB fancy boi 5000
Video Card(s) RTX 3090 Reference
Storage Samsung 970 Evo 1Tb + Samsung 970 Evo 500Gb
Display(s) Dell - 27" LED QHD G-SYNC x2
Case Fractal Design Meshify-C
Audio Device(s) on board
Power Supply Seasonic Focus+ Gold 1000 Watt
Mouse Logitech G502 spectrum
Keyboard AZIO MGK-1 RGB (Kaith Blue)
Software Win 10 Professional 64 bit
Benchmark Scores the MLGeesiest
when dealing with the OCZ powersupplies, IMO & Experience, the older models were better, they were made by topower, powerstream. Then they switched to fortron, and they started getting ALOT of bad reviews.(modstream). Which I honestly don't get, since fortron makes some top end PSU's for the most part.
I have an older Modstream that I got at a Microcenter, on sale. it was leftover stock from a while back, but it is Strong, and reliable. But I'd never buy a current model. Corsair, or PC power cooling etc...better 2 B safe then sorry.
 
Joined
May 14, 2009
Messages
2,132 (0.39/day)
Location
Chicago burbs
System Name Halloween Boo!
Processor Intel Core i7 3770K
Motherboard Gigabyte Z77-Up7
Cooling Custom Water/ Thermalchill TA 120.3/ Swiftech Apogeee XT/ MCP655/ Swiftech M icrores/ XSPC RX 240
Memory 16G G.Skill trident 2400MHz
Video Card(s) 3 x Radeon 7970
Storage OCZ Revo Drive 240G
Display(s) 24 inch Viewsonic
Case Phobia WayCoolIt Test Bench
Power Supply Nexus 1100 watt
80 amp single rail :) i never liked these multi rail psu's, fried a few with my gfx card, specially corsairs.

and what is it with fans in psu's they all fail or rattle to death.

mho

Hey Locksmith... It's Drdeath! I had a HX 1000 go bad with multi rails. Agreed on single rail, cannot go wrong...

note the post where I said SOME Ocz psu are OK I own a OZC 500 its been running strong for going on 6 years but with OZC's track-record with RMA's I would't buy one new if it was the last psu on earth
since you already have it yes it will do the job but if you get stablity issues or random power offs you will know where to look first :roll:

Much better OneMoar. He got is free and if he doesn't OC he will be fine.....
 
Last edited by a moderator:

Frick

Fishfaced Nincompoop
Joined
Feb 27, 2006
Messages
18,914 (2.86/day)
Location
Piteå
System Name Black MC in Tokyo
Processor Ryzen 5 5600
Motherboard Asrock B450M-HDV
Cooling Be Quiet! Pure Rock 2
Memory 2 x 16GB Kingston Fury 3400mhz
Video Card(s) XFX 6950XT Speedster MERC 319
Storage Kingston A400 240GB | WD Black SN750 2TB |WD Blue 1TB x 2 | Toshiba P300 2TB | Seagate Expansion 8TB
Display(s) Samsung U32J590U 4K + BenQ GL2450HT 1080p
Case Fractal Design Define R4
Audio Device(s) Line6 UX1 + some headphones, Nektar SE61 keyboard
Power Supply Corsair RM850x v3
Mouse Logitech G602
Keyboard Cherry MX Board 1.0 TKL Brown
VR HMD Acer Mixed Reality Headset
Software Windows 10 Pro
Benchmark Scores Rimworld 4K ready!
Hey Locksmith... It's Drdeath! I had a HX 1000 go bad with multi rails. Agreed on single rail, cannot go wrong...

This makes no sense. If a single rait unit would have died on you would that mean all single rail PSU's is bad?

And there is no reason a single rail PSU is inherently better than a multi rail one. A bad single rail unit is a bad single rail unit, a good multi rail unit is a good multi rail unit.
 
Joined
May 14, 2009
Messages
2,132 (0.39/day)
Location
Chicago burbs
System Name Halloween Boo!
Processor Intel Core i7 3770K
Motherboard Gigabyte Z77-Up7
Cooling Custom Water/ Thermalchill TA 120.3/ Swiftech Apogeee XT/ MCP655/ Swiftech M icrores/ XSPC RX 240
Memory 16G G.Skill trident 2400MHz
Video Card(s) 3 x Radeon 7970
Storage OCZ Revo Drive 240G
Display(s) 24 inch Viewsonic
Case Phobia WayCoolIt Test Bench
Power Supply Nexus 1100 watt
This makes no sense. If a single rait unit would have died on you would that mean all single rail PSU's is bad?

And there is no reason a single rail PSU is inherently better than a multi rail one. A bad single rail unit is a bad single rail unit, a good multi rail unit is a good multi rail unit.

It makes all the sense. Pushing one of the rails could lead to failure. I had a multi rail go bad and never had a single rail go bad.
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
17,232 (2.63/day)
It makes all the sense. Pushing one of the rails could lead to failure. I had a multi rail go bad and never had a single rail go bad.

Well, I have bad single rail PSU and no multi rail PSU. Luck of the draw, Eh?



:shadedshu

And there is no reason a single rail PSU is inherently better than a multi rail one.

Single rail units tend to have higher current limits, which facilitates having a system with high 12V usage. I can run my 7950s and 3770k on 450W single rail PSU, but not a 450W multi-rail PSU, since the rails do not provide enough power, and one is not used by VGAs due to how it's wired.
 

Frick

Fishfaced Nincompoop
Joined
Feb 27, 2006
Messages
18,914 (2.86/day)
Location
Piteå
System Name Black MC in Tokyo
Processor Ryzen 5 5600
Motherboard Asrock B450M-HDV
Cooling Be Quiet! Pure Rock 2
Memory 2 x 16GB Kingston Fury 3400mhz
Video Card(s) XFX 6950XT Speedster MERC 319
Storage Kingston A400 240GB | WD Black SN750 2TB |WD Blue 1TB x 2 | Toshiba P300 2TB | Seagate Expansion 8TB
Display(s) Samsung U32J590U 4K + BenQ GL2450HT 1080p
Case Fractal Design Define R4
Audio Device(s) Line6 UX1 + some headphones, Nektar SE61 keyboard
Power Supply Corsair RM850x v3
Mouse Logitech G602
Keyboard Cherry MX Board 1.0 TKL Brown
VR HMD Acer Mixed Reality Headset
Software Windows 10 Pro
Benchmark Scores Rimworld 4K ready!
It makes all the sense. Pushing one of the rails could lead to failure. I had a multi rail go bad and never had a single rail go bad.

And shorting an 80A rail can be downright dangerous. And the only PSU that have failed on me was a single rail.

The point is: You can like whatever you like, but none of them is inherently better than the other. A well designed multi rail PSU will be better than a poorly designed single rail unit. The opposite is true as well. It is all about how the specific PSU is made, you can't go around saying one you cannot go wrong with single rail or that it just is better than multi rail as it is just not true.
 
Joined
May 14, 2009
Messages
2,132 (0.39/day)
Location
Chicago burbs
System Name Halloween Boo!
Processor Intel Core i7 3770K
Motherboard Gigabyte Z77-Up7
Cooling Custom Water/ Thermalchill TA 120.3/ Swiftech Apogeee XT/ MCP655/ Swiftech M icrores/ XSPC RX 240
Memory 16G G.Skill trident 2400MHz
Video Card(s) 3 x Radeon 7970
Storage OCZ Revo Drive 240G
Display(s) 24 inch Viewsonic
Case Phobia WayCoolIt Test Bench
Power Supply Nexus 1100 watt
Well, I have bad single rail PSU and no multi rail PSU. Luck of the draw, Eh?



:shadedshu

Could be, but I am a firm believer pushing a rail on a single or multi is a leading factor in fail.

And shorting an 80A rail can be downright dangerous. And the only PSU that have failed on me was a single rail.

The point is: You can like whatever you like, but none of them is inherently better than the other. A well designed multi rail PSU will be better than a poorly designed single rail unit. The opposite is true as well. It is all about how the specific PSU is made, you can't go around saying one you cannot go wrong with single rail or that it just is better than multi rail as it is just not true.

Frick, single and multi has mixed feelings. I prefer 1 beefy single as not to push a rail wheather single or multi.
 
Last edited by a moderator:

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
17,232 (2.63/day)
Could be, but I am a firm believer pushing a rail on a single or multi is a leading factor in fail.

Read my addition. It's just not that black and white. Never is.

You really need to stop double posting, I'm reporting your post. There's an edit button for a reason.
 

Frick

Fishfaced Nincompoop
Joined
Feb 27, 2006
Messages
18,914 (2.86/day)
Location
Piteå
System Name Black MC in Tokyo
Processor Ryzen 5 5600
Motherboard Asrock B450M-HDV
Cooling Be Quiet! Pure Rock 2
Memory 2 x 16GB Kingston Fury 3400mhz
Video Card(s) XFX 6950XT Speedster MERC 319
Storage Kingston A400 240GB | WD Black SN750 2TB |WD Blue 1TB x 2 | Toshiba P300 2TB | Seagate Expansion 8TB
Display(s) Samsung U32J590U 4K + BenQ GL2450HT 1080p
Case Fractal Design Define R4
Audio Device(s) Line6 UX1 + some headphones, Nektar SE61 keyboard
Power Supply Corsair RM850x v3
Mouse Logitech G602
Keyboard Cherry MX Board 1.0 TKL Brown
VR HMD Acer Mixed Reality Headset
Software Windows 10 Pro
Benchmark Scores Rimworld 4K ready!
Single rail units tend to have higher current limits, which facilitates having a system with high 12V usage. I can run my 7950s and 3770k on 450W single rail PSU, but not a 450W multi-rail PSU, since the rails do not provide enough power, and one is not used by VGAs due to how it's wired.

But that depends on how it's made anyway. As you said yourself, it isn't black or white.
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
17,232 (2.63/day)
But that depends on how it's made anyway. As you said yourself, it isn't black or white.

Yeah, exactly. gotta consider each unit on it's own merits, IMHO. things like looking up UL codes and finding out who really makes the PSU can go a long long way.
 
Top