Indeed you are correct - I ran it again with the correct system type and get 381 Watts, which is rather more realistic.
Apologies :bowdown:
Printable View
I noticed this was giving me a really high wattage for the system I'm building. Then I noticed I'd mistaken Quad Processor for Quad Core. Dropped the wattage from 985W to 653W. It even says right under the drop down... user error, doh!
Mnemonik23...I have a mains tester thing coming tomorrow, would the results from that reflect what the PSU calculator tells me, or have I done something drastically wrong?
http://i44.photobucket.com/albums/f1...calculator.png
Thanks :)
First of all I must say it's one sweet setup you have!
Recommendation: use 85% or 90% for CPU Utilization and the same for System Load.
So far I haven't seen any real life test that shows CPU utilization of 100% TDP. EDIT: even if you overclock it, use the above %. Calculator automatically adjusts OC.
I think the question is: will you be able to stress out all of the above components at least 85% while looking at tester? Probably not, so the results from the tester will be lower.
I see you selected additional PCI-e 4x card. Please note, that for these additional PCI-e cards I use maximum wattage that each of PCI-e slots can produce. In case of 4x it's 25W. In your case it could be less...
Thanks :D
The 4x PCI-E card is a RAID card with 6 SATA drives attatched.
Using the previous settings but with 85% utilisation, it comes out dead on 900w or 768w with 85% system load.
Is the 85% system load thing just to offset the components that may not be used normally?
It is the CPU and GPU that I am most curious about. How do you get the wattage figures for the overclocked CPU? I'm not doubting them, just curious :)
Yes and no :) Mostly yes. As I mentioned before (maybe not on this forum), components are divided by groups. Say, you have different CD ROM drive models from different manufacturers and the Wattage can be anywhere between 12W and 20W (old models) for example. So I use average wattage per group, in this case it will be approximately 17W. But for most critical components I use the high end of the range (HDD, RAM, etc.), which makes calculator to overestimate power in some cases but from the other side it covers you 100% and you won't be sorry if something burns because of your less powerful PSU...
CPU OC formula is not a secret ;)
Pnew = Pspec * (Fnew/Fspec)*(Vnew/Vspec)^2
P = Power in watts
F = Frequency in MHz
V = Voltage
new = new overclocked values
spec = published specifications (TDP)
Hope this helps!
was just trying to remember that myself. It's pretty widely used & accepted. Used it ourselves in this project on AMD64 Probably the most correct PSU calculator you can use for MSI K8N Nvidia Neo's many moons ago :lol:
So i guess it's stood the test of time:D
Thanks for that. :)
What I was meaning was, do you ever test the figures against real, overclocked/overvolted CPUs to see if the figures match?
It's kind of impossible for us to test 750+ CPUs... :D
But we did test a few. We also work closely with some of the online review sites and gather information from everywhere possible. I was surprised when in some cases the figures were close to +/-3W !!! In some cases + 18W (with power hungry CPUs like 90W+). I must say it's pretty darn close.
Excellent, I will post my results if the tester thing arrives tomorrow :)
Right the tester thing has arrived.
On bootup just over 400w.
Idle is just under 380w. (no power saving enabled).
Under load with prime95 beta on all 4 cores, kaspersky AV scanning, is just under 500w (489-498w).
I started the oZone3d OpenGL Fur benchmark as well, and the power rose to a maximum of 580w.
At the moment, the CPU only has 1.45v and is clocked at 3.2Ghz.
I will try the 1.65v/3.6Ghz settings later.
Everything else is on full, such as the fans, pumps etc, and everything that I was able to stress was being stressed.
Not entirely sure what to make of that yet :)
Interesting but that's the input draw of the PSU, from the mains socket. What the psu is putting out will be a factor of it's efficiency. For example say it's 80% efficient then output watts become 500w x 80% = 400W. To further complicate matters Efficiency varies wirth a) level of output & heat(hotter reduces efficiency)
Yep, so if the PSU is only doing around 60% efficiency at lower wattage, then the results will be even lower...I think Ive done this right;
580w x 60% efficiency would mean 348w
Even 580w x 85% efficiency = 493.
Does that look right?
Yes absolutely in line with what I'd expect :)
correct This shows how efficiency varies with load Enermax Galaxy 1000W Efficiency TestingQuote:
Yep, so if the PSU is only doing around 60% efficiency at lower wattage, then the results will be even lower...I think Ive done this right
Those figures for efficiency are a bit different to what was said here...anyway, the bottom line is that, even with 85% efficiency, I dont need more than 500w to run flat out with a fairly decent overclock..interesting :)
One thing to note in both of those Galaxy efficiency ratings is that the input voltage used was ~120V. Since you're on 240Volts Clunk, you can expect slightly higher efficiencies that are quoted in those articles.
Thanks. Now to underclock this quad and see what I can get the overall usage down to :)
Mind putting your results in the thread I've made Clunk? Would be nice to have them all in one place :)
http://forums.hexus.net/showthread.php?t=118134 :)
Would be nice to build a reference for everyone to look at :)
Ok, will post my results this evening sometime.
yep that's a good point, as metioned in the review i linked. Not a clue why there are differences.Quote:
Since you're on 240Volts Clunk, you can expect slightly higher efficiencies that are quoted in those articles
September 25, 2007
eXtreme Power Supply Calculator Update
The following changes were made in Lite and Pro versions:
RAM
- added ability to select FB DIMMs
- added ability to select up to 32 sticks of RAM
PCI cards
- added TV Tuner Satelite reception card
- added TV Tuner Cable reception card
- added TV Tuner Antenna reception card
Video Cards
- added NVIDIA GeForce FX 5500
- added NVIDIA GeForce 8600 GT 1024MB
- added ATI Radeon HD 2400 Pro 128MB
- added ATI Radeon HD 2400 Pro 256MB
- added ATI Radeon HD 2400 Pro 512MB
- added ATI Radeon HD 2400 XT
- added ATI Radeon HD 2600 Pro 256MB
- added ATI Radeon HD 2600 Pro 512MB
- added ATI Radeon HD 2600 XT 256MB
- added ATI Radeon HD 2600 XT 512MB
- added ATI FireGL V3600
- added ATI FireGL V5600
- added ATI FireGL V7600
- added ATI FireGL V8600
- added ATI FireGL V8650
CPUs
- added Intel Xeon E5330 2133 MHz Clovertown
- added Intel Xeon E5340 2400 MHz Clovertown
- added Intel Xeon E5350 2667 MHz Clovertown
- added Intel Xeon LV L5335 2000 MHz Clovertown
- added Intel Xeon E7210 2400 MHz Tigerton
- added Intel Xeon E7220 2933 MHz Tigerton
- added Intel Xeon E7310 1600 MHz Tigerton
- added Intel Xeon E7320 2133 MHz Tigerton
- added Intel Xeon E7330 2400 MHz Tigerton
- added Intel Xeon E7340 2400 MHz Tigerton
- added Intel Xeon X7350 2933 MHz Tigerton
- added Intel Xeon LV L7345 1866 MHz Tigerton
- added Opteron 1220 2800 MHz Santa Ana
- added Opteron 1222 3000 MHz Santa Ana
- added Opteron 1222 SE 3000 MHz Santa Ana
- added Opteron 1210 HE 1800 MHz Santa Ana
- added Opteron 1212 HE 2000 MHz Santa Ana
- added Opteron 1214 HE 2200 MHz Santa Ana
- added Opteron 1216 HE 2400 MHz Santa Ana
- added Opteron 1218 HE 2600 MHz Santa Ana
- added Opteron 2218 HE 2600 MHz Santa Rosa
- added Opteron 2220 2800 MHz Santa Rosa
- added Opteron 2222 3000 MHz Santa Rosa
- added Opteron 2222 SE 3000 MHz Santa Rosa
- added Opteron 2224 SE 3200 MHz Santa Rosa
- added Opteron 8218 HE 2600 MHz Santa Rosa
- added Opteron 8220 2800 MHz Santa Rosa
- added Opteron 8222 3000 MHz Santa Rosa
- added Opteron 8222 SE 3000 MHz Santa Rosa
- added Opteron 8224 SE 3200 MHz Santa Rosa
- added Opteron 2344 HE 1700 MHz Barcelona
- added Opteron 2346 HE 1800 MHz Barcelona
- added Opteron 2347 1900 MHz Barcelona
- added Opteron 2347 HE 1900 MHz Barcelona
- added Opteron 2350 2000 MHz Barcelona
- added Opteron 8346 HE 1800 MHz Barcelona
- added Opteron 8347 1900 MHz Barcelona
- added Opteron 8347 HE 1900 MHz Barcelona
- added Opteron 8350 2000 MHz Barcelona
- added AMD Athlon 64 X2 6400+ 3200 MHz AM2 Windsor
eXtreme Power Supply Calculator
ok I got 549w
but my psu is 520..
November 5, 2007
eXtreme Power Supply Calculator Update
The following changes were made in Lite and Pro versions:
Graphics Cards
- added NVIDIA GeForce 8800 GT
- added ATI FireGL V3300
- added AATI FireGL V3350
CPUs
- added AMD Athlon XP 2900+ 2000 MHz Barton
Water Cooling Kits
- added Koolance PC4-1000
- added Koolance RP-1000
Water Pumps
- added Danger Den DD-CPX1
- added D-TEK DDC-3.1
- added D-TEK DDC-3.2
- added Gigabyte DP-600
- added Koolance PMP-400
- added Koolance PMP-450
eXtreme Power Supply Calculator
Does anyone else find that the overclock voltage will only go to one decimal place now. It used to be more. Going up in 0.1v is quite a difference.
December 5, 2007
eXtreme Power Supply Calculator Update
The following changes were made in Lite and Pro versions:
Graphics Cards
- added ATI Radeon HD 2900 Pro 512MB
CPUs
- added Intel Core 2 Extreme QX9650 3000 MHz Yorkfield XE
- added Intel Core 2 Duo E6540 2333 MHz Conroe
- added Intel Core 2 Duo E4500 2200 MHz Allendale
- added Intel Core 2 Duo E4600 2400 MHz Allendale
- added Intel Xeon E5205 1866 MHz Wolfdale-DP
- added Intel Xeon X5260 3333 MHz Wolfdale-DP
- added Intel Xeon X5272 3400 MHz Wolfdale-DP
- added Intel Xeon E5405 2000 MHz Harpertown
- added Intel Xeon E5410 2333 MHz Harpertown
- added Intel Xeon E5420 2500 MHz Harpertown
- added Intel Xeon E5430 2667 MHz Harpertown
- added Intel Xeon E5440 2833 MHz Harpertown
- added Intel Xeon E5450 3000 MHz Harpertown
- added Intel Xeon X5450 3000 MHz Harpertown
- added Intel Xeon X5460 3166 MHz Harpertown
- added Intel Xeon E5462 2800 MHz Harpertown
- added Intel Xeon E5472 3000 MHz Harpertown
- added Intel Xeon X5472 3000 MHz Harpertown
- added Intel Xeon X5482 3200 MHz Harpertown
- added Intel Xeon X5365 G0 3000 MHz Clovertown
- added Intel Xeon 3065 2333 MHz Conroe
- added Intel Xeon 3075 2667 MHz Conroe
- added Intel Xeon 3085 3000 MHz Conroe
- added Intel Pentium Dual-Core E2180 2000 MHz Allendale
- added Intel Pentium Dual-Core E2200 2200 MHz Allendale
- added Intel Celeron 220 1200 MHz Conroe-L
- added AMD Athlon X2 BE-2400 2300 MHz Brisbane
eXtreme Power Supply Calculator
I've just done some cross-checking with actual load readings via power measuring meters - The figures it is giving is well off :(
January 8, 2008
The following changes were made:
Graphics Cards:
- added NVIDIA GeForce 8800 GT 256MB
- added NVIDIA GeForce 8800 GTS 512MB
- added ATI Radeon HD 3850 256MB
- added ATI Radeon HD 3850 512MB
- added ATI Radeon HD 3870
CPUs:
- added Intel Core 2 Duo E8200 2667 MHz Wolfdale
- added Intel Core 2 Duo E8400 3000 MHz Wolfdale
- added Intel Core 2 Duo E8500 3166 MHz Wolfdale
- added Intel Core 2 Quad Q9550 2833 MHz Yorkfield
- added Intel Core 2 Quad Q9450 2667 MHz Yorkfield
- added Intel Core 2 Quad Q9300 2500 MHz Yorkfield
- added AMD Phenom 9500 2200 MHz Agena
- added AMD Phenom 9550 2200 MHz Agena
- added AMD Phenom 9600 2300 MHz Agena
- added AMD Phenom 9650 2300 MHz Agena
- added AMD Phenom 9700 2400 MHz Agena
- added AMD Phenom 9900 2600 MHz Agena
eXtreme Power Supply Calculator
These PSU calculators are a waste of time.
Even if they gave a 'ball-park' figure they might be useful but they dont.
Indeed. I'm very close to closing this thread as its so inaccurate. The figures its giving off are not even close to real world ones. I can't see how anyone could find this of use.
Its just giving newbies the wrong readings, the very people who we need to teach that Amps are as important as Watts.
That's because people do not read.
Regarding amperes. Please read closely under blinking word ATTENTION in red here:
eXtreme Power Supply Calculator Lite v2.5
Amps are in Pro version, but the recommended Watt results from Lite provide you with an idea about PSU wattage. Recommended doesn't mean required.
Also, because you can not provide the sufficient load for your PSU (because not all components are loaded), while checking the results with kill-a-watt, it doesn't mean that one day (when that load occurs) it will not bite you back. Please tell me what you did to load your PSU when kill-a-wat was plugged in?
You have all necessary adjustments to get very, I repeat very close results to real life ones.
Ocers with experience know how to use it. I can not recommend newbies to use the System Load and TDP Utilization less than 85% unless they know what they do. Yes, there is an overhead and I do not hide it. The overhead is not dramatically big and I always say better have an overhead rather than be sorry later.
I've seen many "fried' PC components because of high load and when some of the PSUs protections just failed to prevent that overload. Mostly because of cheap PSUs... But anyway, 99% of the time newbie might choose some cheap PSU that can not deliver what it suppose to deliver.
Heck, a few very known PC manufacturers use our calculator and find it very useful. But if you think it's bad, oh well, you can always close this topic.
Cheers!
mnemonik23
I can't read the 10th page (when I click it it just keeps putting me back onto the 9th page), so forgive me if this has been repeated or explained.
You're essentially advertising your (or someone's) Pro product. By your own admission you (or the company you publicise) deliberately mislead customers through only publishing wattages in your (or the company you publicise) 'lite' package, and force them to purchase the 'pro' package to gain access to the actual representative figures? Wattage means nothing in PCs - by choosing to leave amp figures out of your (need I repeat?) free lite packing your (...) website is essentially worthless, and merely an advertising front.
If we wanted to deliberately mislead customers, there won't be any warning messages about Wattage and that it gives just a general idea on what to look for BUT it is NOT a crucial factor in power supply selection.
If we wanted to force customers to buy a Pro version, believe me, there will be no Lite version. Oh, but this would upset many smart folks that already figured out how to use Lite version and have necessary results with Amps. Should we close it? Maybe, we will think about it.
Again, lite version just gives you a general idea on what to look for and DOES NOT FORCE you to buy a power supply with recommended wattage.
From the marketing side, if you want something better - you have to pay for it. Isn't how this works?
We set such a ridiculously small subscription fee for Pro version that after all transaction fees and taxes it doesn't even cover the effort spent for research, hardware/components and maintenance. Don't you think we deserve a little something for this?
But it doesn't give you a general idea if the people it's aimed at (casual techies who have no real idea what they're looking for) just see 480w or something, and go out and buy the first ~480w PSU they see. It's of no benefit at all. The people who do know that a cheapy PSU is useless generally won't need your tool anyway, be it pro or lite.
I've no problem with you selling a tool. None what-so-ever, but by pushing the lite version as a promotional tool suggests to me how little consideration you have for your customers. 'Buy our full product for any meaningful figure at all, but in the meantime here are some ones which are of no benefit to you at all'. Again, I don't mind your selling something, but your choice of promotion is potentially harmful in itself.
Not necessarily.
Firstly it has a warning on there with a nice red flashing ATTENTION sign saying that this version of the PSU calculator gives only an approximate idea and that you should check the 12v and other rails.....
Secondly it's very useful for enthusiasts just to make sure that everything "should" run fine.
At the end of the day they have the right to make money. Simple as that. If they wanted to be spiteful they could lock it all away and make you pay to get even a general idea. How dare they let you use a cutdown version of the program they worked long and hard on! How dare they! Next time a game publisher releases a demo for a game I'm going to send them an angry letter saying how it only gives me a general idea of how the game is going to be, how it's just advertising and how I don't think of the wider picture when I go off the deep end.
I also don't think the market for the pay product is enthusiasts. I think it's people who are possibly building their first PC and are not quite sure about what sort of PSU they should use less they risk ****ing up their brand new £800 bunch of parts :)
You didn't really read my post, did you?
I stated several times that I don't have a problem with promotion, or with selling that product, but their means of doing so. A game publisher selling a demo is doing just that - you get a cut down version to play with, and if you like it, you might consider buying the full one. This isn't like that - it's offering worthless, free advice, which if followed on its own by those with little knowledge, can potentially harm that "brand new £800 bunch of parts".
The full version can be handy for enthusiasts, but enthusiasts should know what's needed anyway. You shouldn't need an interactive webpage to tell you 13amps on a single 12v rail isn't going to power 2 hard drives and an HD2900 - there's certainly no point in the free product for them.
March 12, 2008
The following changes were made:
Graphics Cards:
- added NVIDIA GeForce 9600 GT
- added NVIDIA GeForce 8800 GT 1024MB
- added ATI Radeon HD 3870 X2
CPUs:
- added Intel Core 2 Duo E8190 2667 MHz Wolfdale
- added Intel Celeron E1200 1600 MHz Allendale
- added Intel Xeon E3110 3000 MHz Wolfdale
- added AMD Athlon X2 4850e 2500 MHz
- added AMD Sempron 64 3800+ 2200 MHz AM2 Manilla
- added AMD Sempron 64 3000+ EE 1600 MHz AM2 Manilla
- added AMD Sempron 64 3200+ EE 1800 MHz AM2 Manilla
- added AMD Sempron 64 3400+ EE 1800 MHz AM2 Manilla
- added AMD Sempron 64 3500+ EE 2000 MHz AM2 Manilla
- added AMD Sempron 64 LE-1100 1900 MHz AM2 Sparta
- added AMD Sempron 64 LE-1150 2000 MHz AM2 Sparta
- added AMD Sempron 64 LE-1200 2100 MHz AM2 Sparta
- added AMD Sempron 64 LE-1250 2200 MHz AM2 Sparta
- added AMD Sempron 64 LE-1300 2300 MHz AM2 Sparta
Pro version:
Added ability to select 3-Way SLI and Quad CrossFire X in Pro version.
eXtreme Power Supply Calculator Lite
this CPU calculator is good, but tbth, i worry a bit about its accuracy...
It's a PSU calc, not CPU. Is this old thread revival day or sumfink?
He's just updating what is now available on the PSU calculator.
April 9, 2008
eXtreme Power Supply Calculator Update
The following changes were made:
Graphics Cards:
- added NVIDIA GeForce 9800 GX2
- added NVIDIA GeForce 9800 GTX
- added NVIDIA GeForce 8800 GS 384MB
- added ATI RADEON HD 3650 256MB
- added ATI RADEON HD 3650 512MB
- added ATI RADEON HD 3450
- added ATI RADEON HD 3470
CPUs:
- added AMD Phenom 8400 2100 MHz Toliman
- added AMD Phenom 8600 2300 MHz Toliman
- added AMD Phenom 9100e 1800 MHz Agena
- added AMD Phenom 9750 2400 MHz Agena
- added AMD Phenom 9850 2500 MHz Agena
- added AMD Athlon 64 X2 5400+ 2800 MHz AM2 Brisbane
- added Intel Xeon L5410 2333 MHz Harpertown
- added Intel Xeon L5420 2500 MHz Harpertown
- updated list of AMD Athlon 64 X2 processors for socket 939
TEC Coolers:
- added CoolIT Systems Freezone Elite
- added CoolIT Systems Boreas MTEC
WC Kits:
- added CoolIT Systems PURE CPU
pc power consumption calculator
And we'll close it on that note :)
mnemonik23 - This is not a free advertising service. Sorry.
While I appreciate that your site may be of interest to some users here (even though I find it consistently inaccurate), every post you have made on these forums has been promoting your site. Quite simply, thats not on buddy :(