http://www.xbitlabs.com/articles/coo...m-wattage.html
The precis is that if you buy more than a 600W power supply you're wasting your money, unless you're running multiple GTX295s.
Can't say I'm surprised, personally.
PK
http://www.xbitlabs.com/articles/coo...m-wattage.html
The precis is that if you buy more than a 600W power supply you're wasting your money, unless you're running multiple GTX295s.
Can't say I'm surprised, personally.
PK
Seeing a high end gaming system comes in at just under 400W, I am very happy with by purchase of an HX850, as I like to run a PSU at 50% because....
- Computers can spike to a much higher than average, while good PSUs should be able to go over for a short amount of time I don't like to realy on it.
- PSU makers in the past have put much higher figures than really they can supply.
- Can the current be supplied where you need it? (That while I have a Single rail PSU)
- Capacitors age so with time cannot supply nearly the same power as when they were new.
- A PSU working at 50% is allow quieter than one running at 80-90%
- Running a PSU under the maximum rated values reduces the strain on it and extends its life.
I always like to compare things to an electric fire, a one bar electric fire is 1kW! Its of no surprise that most computers take less than half that.
Yeah but a hoover is 1.2KW!
shows how energy efficient computers are really.
I run my whole Q6600 PC on a 380W supply, never had a problem.
I'd probably buy a 550W or so when I upgrade the better graphics than a 9600GT, but mostly so it doesn't have to strain to supply the power and make lots of fan noise etc. There is also a good choice of PSUs in that range, modular etc
Overclocking your CPU can also increase power draw, that should be kept in mind!
The point of the measurements is that the highest spike was still way under the maximum rating for the power supply. Only crap PSU makers note more than they can supply - my Seasonic PSU is adamant it will supply 600W at top efficiency pretty much forever and reviews back this up.
Your point that a PSU running under the maximum rating will be quieter could certainly have some merit : I've not seen anyone test that.
The surface of a CPU is hotter than the surface of the Sun, so I'm not sure that comparing it to a leccy fire is a good idea
PK
I've a 650W corsair PSU but that's only because I needed a lot of SATA and Molex connections for my storage arrays.
I've also clocked the hell out of my CPU and as such this gives a little bit more of a security blanket
Most Hexites have known this all for a while....
700W here, running opverclocked i7, 4870x2, 8600GTS, 4 SSDs, 8 HDDs, 1 optical, a couple of lights and my water cooling pump.
Main PC: Asus Rampage IV Extreme / 3960X@4.5GHz / Antec H1200 Pro / 32GB DDR3-1866 Quad Channel / Sapphire Fury X / Areca 1680 / 850W EVGA SuperNOVA Gold 2 / Corsair 600T / 2x Dell 3007 / 4 x 250GB SSD + 2 x 80GB SSD / 4 x 1TB HDD (RAID 10) / Windows 10 Pro, Yosemite & Ubuntu
HTPC: AsRock Z77 Pro 4 / 3770K@4.2GHz / 24GB / GTX 1080 / SST-LC20 / Antec TP-550 / Hisense 65k5510 4K TV / HTC Vive / 2 x 240GB SSD + 12TB HDD Space / Race Seat / Logitech G29 / Win 10 Pro
HTPC2: Asus AM1I-A / 5150 / 4GB / Corsair Force 3 240GB / Silverstone SST-ML05B + ST30SF / Samsung UE60H6200 TV / Windows 10 Pro
Spare/Loaner: Gigabyte EX58-UD5 / i950 / 12GB / HD7870 / Corsair 300R / Silverpower 700W modular
NAS 1: HP N40L / 12GB ECC RAM / 2 x 3TB Arrays || NAS 2: Dell PowerEdge T110 II / 24GB ECC RAM / 2 x 3TB Hybrid arrays || Network:Buffalo WZR-1166DHP w/DD-WRT + HP ProCurve 1800-24G
Laptop: Dell Precision 5510 Printer: HP CP1515n || Phone: Huawei P30 || Other: Samsung Galaxy Tab 4 Pro 10.1 CM14 / Playstation 4 + G29 + 2TB Hybrid drive
Main PC: Asus Rampage IV Extreme / 3960X@4.5GHz / Antec H1200 Pro / 32GB DDR3-1866 Quad Channel / Sapphire Fury X / Areca 1680 / 850W EVGA SuperNOVA Gold 2 / Corsair 600T / 2x Dell 3007 / 4 x 250GB SSD + 2 x 80GB SSD / 4 x 1TB HDD (RAID 10) / Windows 10 Pro, Yosemite & Ubuntu
HTPC: AsRock Z77 Pro 4 / 3770K@4.2GHz / 24GB / GTX 1080 / SST-LC20 / Antec TP-550 / Hisense 65k5510 4K TV / HTC Vive / 2 x 240GB SSD + 12TB HDD Space / Race Seat / Logitech G29 / Win 10 Pro
HTPC2: Asus AM1I-A / 5150 / 4GB / Corsair Force 3 240GB / Silverstone SST-ML05B + ST30SF / Samsung UE60H6200 TV / Windows 10 Pro
Spare/Loaner: Gigabyte EX58-UD5 / i950 / 12GB / HD7870 / Corsair 300R / Silverpower 700W modular
NAS 1: HP N40L / 12GB ECC RAM / 2 x 3TB Arrays || NAS 2: Dell PowerEdge T110 II / 24GB ECC RAM / 2 x 3TB Hybrid arrays || Network:Buffalo WZR-1166DHP w/DD-WRT + HP ProCurve 1800-24G
Laptop: Dell Precision 5510 Printer: HP CP1515n || Phone: Huawei P30 || Other: Samsung Galaxy Tab 4 Pro 10.1 CM14 / Playstation 4 + G29 + 2TB Hybrid drive
Yeah, waste of time...people with too much money....
I think I will have 2 x 5870 cards at some stage, but even then I imagine a 600W PSU would do... Aww well.
I have a 700w Xclio psu but that was because it was cheap compared to most especially when directly compared with corsairs 620w psu(was about £30 cheaper!). Bought it for future use if i ever needed the extra and because it will last longer due to the limited strain on it!.
Majority of psu's have an 80 plus award now and so they should be atleast 80% effcient at 20/50/80% load(iirc) so basically buying a higher psu is actually a good thing IF you can afford to because you will have a good long lasting PSU as it has little strain and will be pretty effcient.
I just rewired my main desktop system and with 2x Monitor + Desktop + Speaker + Router + 4x Ext HDD the power usage from the wall is 400~450W. It probably will just tip 500W at max load.
Monitors are the power hogs...
Workstation 1: Intel i7 950 @ 3.8Ghz / X58 / 12GB DDR3-1600 / HD4870 512MB / Antec P180
Workstation 2: Intel C2Q Q9550 @ 3.6Ghz / X38 / 4GB DDR2-800 / 8400GS 512MB / Open Air
Workstation 3: Intel Xeon X3350 @ 3.2Ghz / P35 / 4GB DDR2-800 / HD4770 512MB / Shuttle SP35P2
HTPC: AMD Athlon X4 620 @ 2.6Ghz / 780G / 4GB DDR2-1000 / Antec Mini P180 White
Mobile Workstation: Intel C2D T8300 @ 2.4Ghz / GM965 / 3GB DDR2-667 / DELL Inspiron 1525 / 6+6+9 Cell Battery
Display (Monitor): DELL Ultrasharp 2709W + DELL Ultrasharp 2001FP
Display (Projector): Epson TW-3500 1080p
Speakers: Creative Megaworks THX550 5.1
Headphones: Etymotic hf2 / Ultimate Ears Triple.fi 10 Pro
Storage: 8x2TB Hitachi @ DELL PERC 6/i RAID6 / 13TB Non-RAID Across 12 HDDs
Consoles: PS3 Slim 120GB / Xbox 360 Arcade 20GB / PS2
Surely it's better buying bigger for the ol' growing space?
I'm guilty of getting a HX750 when I know I didn't need it (it was to replace a knackered 600W Zalman) but it was, and this will sound silly, only £110. £110 for a pretty fundamental part of top quality that's also damn near silent isn't exactly thievery. Plus, in the case of the HX750 anyway, it's most efficient at about half-load which seems to be roughly where I'm at right now.
In 2 or 3 years time, who knows what crackers idea I'll have and want to run! If I got a "just enough" 400W or whatever, I might have to look at a new PSU.
TBH though you don't tend to run your vacuum 4hrs+ a day ..... do you?!
For most peeps who have posted so far it would seem efficiency is irrelevant since anyone running multiple GPU's can't seriously claim they're paying a close eye on the leccy bill. They've already decided gaming/folding prowess comes ahead for power consumption or they'd all be running 4890's and dropping ppd by the second.
Vimeous : i7 7700K | 16Gb | ASUS Strix Z270G | GTX1080 | 960 EVO 500GB NVMe | 850 EVO 500GB | TX650W | NZXT S340 Elite | Dell U2713H + 17" | 10 Pro
Willowin : i7 3570K | 16Gb | ASUS P8Z77-I Deluxe | GTX 660 TI | 2x 1TB 840EVO | Sugo SG05BB-450 | Dell U2713H + 17" | 8.1 Pro
Svr : X2 4200+ | 2Gb | ASUS A8N-SLI Premium | HD6870 | SonicFury | 8x 250Gb (2x RAID10) | 3Ware 9650SE-8LPML | Seasonic 700W | CM Stacker 830 | XP Pro
NAS : DS1511+ | DX513
W : Dell Precision T3610 | E5-1650 V2 | 16GB | Quadro K2000 | 256GB SSD | 1TB HDD | 8.1 Pro | 2x Dell U2515H
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