eXtreme PSU Calculator update

[mnemonik23]

eXtreme PSU Calculator v1.2 Update
www.extreme.outervision.com

- Now has 450+ CPUs including latest CPUs from AMD and Intel:

AMD Athlon 64 FX-60
AMD Athlon 64 X2 5000+
Intel Xeon 5020, 5030, 5030, 5040, 5050, 5060, 5063, 5070 (Dempsey Core)
Intel Xeon 7020, 7030, 7040, 7041 (Paxville Core)
Intel Pentium 4 631, 641, 651, 661, 671 (Cedar Mill Core)
Intel Celeron D 352, 356 (Cedar Mill Core)
Intel Pentium D 920, 930, 940, 950 (Presler Core)
Intel Pentium EE 955 (Presler Core)

- Added PSU utilization % based on CPU and Video Card

- Added a formatted print functionality
Sample:
http://img295.imageshack.us/img295/3953/extremepsuprint2ii.gif

 

[MercenaryForHire]

I'm sorry, but due to the terms of the Federal Hype Reduction Act of 2001, use of the phrase "extreme" in any technical product is punishable by a mandatory 1 year sentence in a Federal DeHyping Educational Camp. Enjoy hours of knitting and watching PBS from within the soothing pastel confines of Club Fed, my friend.

Edit - No love for the S370 chips? Bah. I wanted to see how badly I violated the "PSU Requirement" as well as the laws of thermodynamics with some of my SFF boxen.

- M4H

 

[deathwalker]

Hehe...I just used that calculator...its say my power requirements are 248 watts...there is almost no likelyhood that my system would even boot with a 250 wat PS in it. This calculator has a major flaw in that it doesn't use a margin factor of any sort. Fun to use too just to estimate your peak usage but beware of using it to determint what PS you are going to buy next time you need one.

 

[Bobthelost]

Originally posted by: deathwalker
Hehe...I just used that calculator...its say my power requirements are 248 watts...there is almost no likelyhood that my system would even boot with a 250 wat PS in it. This calculator has a major flaw in that it doesn't use a margin factor of any sort. Fun to use too just to estimate your peak usage but beware of using it to determint what PS you are going to buy next time you need one.

So we've finally found an accurate power draw calculator on the web!? Excellent.

Should stop people thinking that just because they have a 7800GT they need a 500W PSU.

It's not the calculator's fault that manufacturers lie like the devil in the tech specs.

(Did you change the settings to peak usage?)

 

[2Dead]

406 watts max usage for me. Works fine with my antec 480. :thumbsup: 513 max usage if i sli my 7800gt :thumbsdown:

 

[shoRunner]

Originally posted by: deathwalker
Hehe...I just used that calculator...its say my power requirements are 248 watts...there is almost no likelyhood that my system would even boot with a 250 wat PS in it. This calculator has a major flaw in that it doesn't use a margin factor of any sort. Fun to use too just to estimate your peak usage but beware of using it to determint what PS you are going to buy next time you need one.

more than likely it is correct, if you purchased a quality 250-300watt psu it would run your system fine. what kind of system do you have?

 

[Bobthelost]

Originally posted by: TrandM
406 watts max usage for me. Works fine with my antec 480. :thumbsup: 513 max usage if i sli my 7800gt :thumbsdown:

That's assuming your HDs are running at full load, as are your DVD writer (burning a DVD @16x) you're playing BF2 and maxing out your RAM and every single CPU cycle is being used.

I'd put money on it working.

 

[zagood]

Add about 100 watts for overhead.

If the calculator says your reqs are 248 watts(max), you could easily run your system on a 350w power supply with good amps on the +12v.

For anyone who's using that calculator because of an interest in power supplies, or is looking at purchasing a new power supply, make sure you read the article/thread linked at the top...

http://forums.extremeoverclocking.com/showthread.php?t=136602

-z

 

[Bobthelost]

What overhead are you talking about? A comfort blanket overhead? Or do you really think that the motherboard pulls down an additional 100W?

 

[twitchee2]

well wiht a OCed cpu at 100% i peak at 521w.......wow

 

[Ricemarine]

Originally posted by: Bobthelost
What overhead are you talking about? A comfort blanket overhead? Or do you really think that the motherboard pulls down an additional 100W?

Efficiency, nuff said. usually, PSU's operate at 75% of their rated voltage, due to temperature, since they rate at 25 C. But in reality, your case is hotter, thus decreasing the efficiency.

Btw, my PC was rated in at 408w on load. I have a 485w enermax noisetaker

 

[zagood]

Originally posted by: Bobthelost
What overhead are you talking about? A comfort blanket overhead? Or do you really think that the motherboard pulls down an additional 100W?

Comfort blanket/efficiency overhead. As power supplies get closer to their rated max wattage output, they release more heat, become less efficient, and running too close to that for extended periods of time increases the likelihood of failure.

Higher efficiency PSU's and those rated at higher temperatures obviously don't have to take this into consideration as much.

-z

EDIT: motherboard is already taken into account in that calculator:

"Other Hardware (Values are preset to 43 Watts):
Motherboard (40 Watts)
Keyboard & Mouse (3 Watts) "

 

[Mem]

Should stop people thinking that just because they have a 7800GT they need a 500W PSU.

It's not the calculator's fault that manufacturers lie like the devil in the tech specs.

Don't know about you but I add hardware now and then plus video card upgrades always require more power in my experience ,so nothing wrong with getting a good high powered PSU for long term investment.

 

[Bobthelost]

Originally posted by: zagood

Originally posted by: Bobthelost
What overhead are you talking about? A comfort blanket overhead? Or do you really think that the motherboard pulls down an additional 100W?

Comfort blanket/efficiency overhead. As power supplies get closer to their rated max wattage output, they release more heat, become less efficient, and running too close to that for extended periods of time increases the likelihood of failure.

Higher efficiency PSU's and those rated at higher temperatures obviously don't have to take this into consideration as much.

-z

EDIT: motherboard is already taken into account in that calculator:

"Other Hardware (Values are preset to 43 Watts):
Motherboard (40 Watts)
Keyboard & Mouse (3 Watts) "

Yeah that makes sense, i make sure my PSU intake temp is pretty low so i can neglect that factor, not to mention that the better PSU manufacutrers rate thier PSUs at up to 50 degrees.

 

[imported_michaelpatrick33]

According to the test if I add another 7800GTX OC to my system I will need 607watts max power. I have a Seasonic 600watt. I find it hard to believe that it wouldn't be up to the task. Oh well, maybe I will sell my 7800GTX and get a X1900XTX or maybe I will pay bills this month

 

[zagood]

Originally posted by: michaelpatrick33
According to the test if I add another 7800GTX OC to my system I will need 607watts max power. I have a Seasonic 600watt. I find it hard to believe that it wouldn't be up to the task. Oh well, maybe I will sell my 7800GTX and get a X1900XTX or maybe I will pay bills this month

Whoa man, what are you running on that rig?

It is possible to overload a power supply of that size. Check out Ronin's comments in this thread...I can't find the original where he talks about the whole PSU experience...

http://forums.anandtech.com/messageview...&STARTPAGE=2&FTVAR_FORUMVIEWTMP=Linear

"So, I threw a pair in last night into the box in my sig. For those of you who were watching previously, I had to go up to a 680W PSU just to get that box stable because of all the power it was sucking (went from a 500W Antec SmartPower 2.0, to a Seasonic 600W, to the current TT 680W that I had laying around).

"After trying to benchmark last night (I got through one run of 2k5 with the cards at 605/940) w/2k6, I noticed my front 120MM LED fan was dimming every time the 3d portion of the benchmark came on. About midway through all the tests, the computer shut off. I guess I'm going to have to step it up another notch if I don't want to start ripping things out of the case (note that I'm not running what you'd call a conventional setup. I have 5 SATA/II drives, 2 Optical drives, 1 External USB/Firewire drive, 1 External Firewire drive, an X-Fi, 3 120MM fans (of which 1 is on the CPU), and of course a keyboard/mouse). "

-z

 

[alimoalem]

Originally posted by: twitchee2
well wiht a OCed cpu at 100% i peak at 521w.......wow

so i guess your OCZ 520W Modstream is producing 1w more than what it's rated

i just tried to make the most power hungry non-OCed, non-Water Cooled system. it came out to 731W (100% Uitilization) or 648W(80% Utilization). here's what i selected:

CPU: Intel Xeon 7041 3000MHz Paxville (165 Watts)
MB: Motherboard (40 Watts)
KB/Mouse: Keyboard & Mouse (3 Watts)
RAM: 4 Sticks DDR SDRAM (40 Watts)
VGA: SLI = 2 x nVidia GeForce 7800GTX 490MHz (252 Watts)
HDD: 1 SCSI HDD 15,000 rpm (45 Watts each) & 2 SATA HDD (13 Watts each = 26 Watts)
Drives: DVD-Rom Drive (25 Watts) & DVD-RW / DVD+RW Drive (25 Watts)
Fans: 2 of each (all High Performance) - 80mm (18 Watts Total), 92mm (24 Watts Total), 120mm (18 Watts Total)

MISCELLANEOUS
56K PCI Modem (4 Watts)
PCI SCSI Controller Card (20 Watts)
4 USB (10 Watts Total)
2 IEEE-1394 (16 Watts)

that's pretty crazy.


realistically though, it is very possible to reach 520+ watts, especially with SLI

 

[alimoalem]

i have a question. let's say you have a 400w PSU and at 80% your rig is using 398w but at peak load it's 422w. let's say your psu can't take it under full load. what happens? does your motherboard fry? is it simply that the PSU burns out and you replace it?

basically what i'm asking is, what are the dangers of having too weak of a PSU? thanks

 

[xtknight]

This PC right here measured just 180W under full load (120W idle), out of the wall with a Kill-A-Watt meter. Both an offbrand and Antec 300W power supply served it just fine. The offbrand had not died, I took it out because we had to replace the PSU in my mom's PC. Your calculator says 265W peak. So how does the 'efficiency' factor in to all of this? I need to get a 265W@40C rated power supply you mean? The thing was only drawing 180W from the wall, so technically a 185W or so PSU would be sufficient?

 

[thecoolnessrune]

Originally posted by: xtknight
This PC right here measured just 180W under full load (120W idle), out of the wall with a Kill-A-Watt meter. Both an offbrand and Antec 300W power supply served it just fine. The offbrand had not died, I took it out because we had to replace the PSU in my mom's PC. Your calculator says 265W peak. So how does the 'efficiency' factor in to all of this? I need to get a 265W@40C rated power supply you mean? The thing was only drawing 180W from the wall, so technically a 185W or so PSU would be sufficient?

Correct me if im wrong, but how does this have anything to dow with the power output of the PSU? Dont PSU's have transformers that perhaps take some of the AMPs from the wall and convert it to DC watts? Surely it is not a direct 180 watts AC in -> 180 watts DC out. Im sure amperage conversion must take place at some point. Hoever it may do it at a different stage that doesn't affect wall pull. So I could be wrong.

 

[mnemonik23]

February 1, 2006

The following changes were made:

- from now all new AMD CPUs will be listed by OPN code

- added links on webpage to the latest updates

- added AMD Athlon 64 3000+ ADA3000AIK4BX
- added AMD Athlon 64 3200+ ADA3200AIO4BX
- added AMD Athlon 64 3200+ ADA3200DKA4CG
- added AMD Athlon 64 3500+ ADA3200DKA4CG
- added AMD Athlon 64 3700+ ADA3700DAA5CF
- added AMD Athlon 64 4000+ ADA4000DKA5CF
- added AMD Athlon 64 X2 4400+ (89 Watts)
- added AMD Opteron OSK246FAA5BL HE
- added AMD Opteron OSK846FAA5BM
- added AMD Opteron OSK148FAA5BK HE
- added AMD Opteron OSK248FAA5BL HE
- added AMD Opteron OSK848FAA5BM HE
- added AMD Opteron OSK250FAA5BL HE
- added AMD Opteron OSK850FAA5BM HE
- added AMD Opteron OSA252FAA5BL
- added AMD Opteron OSA852FAA5BM
- added AMD Opteron OSA254FAA5BL
- added AMD Opteron OSA854FAA5BM
- added AMD Opteron OSK260FAA6CB HE
- added AMD Opteron OSK860FAA6CC HE
- added AMD Opteron OSA165FAA6CB
- added AMD Opteron OSK265FAA6CB HE
- added AMD Opteron OSA865FAA6CC
- added AMD Opteron OSK865FAA6CC HE
- added AMD Opteron OSK270FAA6CB HE
- added AMD Opteron OSK870FAA6CC HE
- added AMD Opteron OSA870FAA6CC
- added AMD Opteron OSA875FAA6CC
- added AMD Opteron OSA280FAA6CB
- added AMD Opteron OSA880FAA6CC
- added AMD Opteron OSA144DAA5BN
- added AMD Opteron OSA146DAA5BN
- added AMD Opteron OSA148DAA5BN
- added AMD Opteron OSA150DAA5BN
- added AMD Opteron OSA152DAA5BN
- added AMD Opteron OSA154DAA5BN
- added AMD Opteron OSA165DAA6CD
- added AMD Opteron OSA170DAA6CD
- added AMD Opteron OSA175DAA6CD
- added AMD Opteron OSA180DAA6CD


New major update is coming:

Video Card wattages have been reviewed and will be listed based on real life 3D load tests (Not the maximum power consumption reported by manufacturers).

www.extreme.outervision.com

 

[2Dead]

Originally posted by: Bobthelost

Originally posted by: TrandM
406 watts max usage for me. Works fine with my antec 480. :thumbsup: 513 max usage if i sli my 7800gt :thumbsdown:

That's assuming your HDs are running at full load, as are your DVD writer (burning a DVD @16x) you're playing BF2 and maxing out your RAM and every single CPU cycle is being used.

I'd put money on it working.

Oh it is definitely working... i just maxed it out as a worst case scenario. Thanks for the input though Bob

 

[maluckey]

384 watts for the rig in the sig at 80 percent. Sounds about right. I tried a few 400 watt mid-line PSU's and found that when the OC was maxed, the PSU gave out before the hardware. After switching to the Sparkle 550 watt unit, no further issues and the OC was stable where before it would randomly crash.

 

[Cook1]

According to that I'm using 559W! Have a 500W PSU which I adore...oh well

 

[alimoalem]

Originally posted by: Cook1
According to that I'm using 559W! Have a 500W PSU which I adore...oh well

goes to show it's not accurate. plus, a few posts up it mentions how the VGA cards will be updated to show real performance, not max needed that the manufacturer's state