Rastalovich
New member
name='nrage' said:
Can a handfull of people chuck their systems in this and let me know how accurate they feel it is ?
My 400w system comes out requiring 563w.. hmm.. it does do some things from time to time..
PSU Power Calc
- Thread starter Rastalovich
- Start date
Can a handfull of people chuck their systems in this and let me know how accurate they feel it is ?
My 400w system comes out requiring 563w.. hmm.. it does do some things from time to time..
Rastalovich
New member
O o another 400w psu I got is running 580w.
I think the 25w or so per hard drive is killing me.
I think the 25w or so per hard drive is killing me.
Rastalovich
New member
I`m also siding with the fact that as it`s a manufs site, there could also be some max values being used along the way, to give maybe an alarm to some.
+/- so much % would probably be ok, aslong as u`r using quality.
+/- so much % would probably be ok, aslong as u`r using quality.
Mr. Smith
New member
That calculator is a load of :bs:
My rig came out at 798w, the quad based one. That was at 3.6ghz @1.5v in the calculator.
I know for a fact, at 3.78 with higher volts at a completely unrealistic load ((prime/rthdfghhldfgd(you know the one)/memtest)) it maxed at 570w.
Not only was my rig clocked higher with more volts, it used 25% less power than that calc states! Man, I bet if I put the proccy at 3.8, 1.6v it would say 900w...
Avoid this.
My rig came out at 798w, the quad based one. That was at 3.6ghz @1.5v in the calculator.
I know for a fact, at 3.78 with higher volts at a completely unrealistic load ((prime/rthdfghhldfgd(you know the one)/memtest)) it maxed at 570w.
Not only was my rig clocked higher with more volts, it used 25% less power than that calc states! Man, I bet if I put the proccy at 3.8, 1.6v it would say 900w...
Avoid this.
That calculator does say...
"The total PSU Wattage this tool recommends will give a general idea of the range of continuously available power (not peak power) at which you should be looking. But if you are planning to build a high end gaming system, total Amperage available on the +12V rails—and how that capacity is distributed—could be as or more important than total Watts of power.
So once you have established the likely power needs of your system, please make sure that any PSU you buy will provide sufficient Amps of current on the various rails for all of your devices, and that it will have the proven reliability, service and support you deserve."
Most people here have what I'd call a "high end gaming system" so amperage on the +12V rails is likely more important.
Unless you're actually getting instability, like BSOD's or random reboots I wouldn't look to replace your PSU just yet.
How are you guys reaching loads of 688W. I only got 313W with my system. Is it the water cooling? A large number of HDD's could be a major factor, as could SLI GPU's. I'm only running a single GPU.
You're not selecting System Type "dual" or "quad processor" are you, note #1 specifically says "System Type: Based on physical processor(s). Multicore CPU counts as a single processor."
I'm not overclocking either, that might make a fairly large difference I suppose.
EDIT: whoa, overclocking makes a huge difference...
"The total PSU Wattage this tool recommends will give a general idea of the range of continuously available power (not peak power) at which you should be looking. But if you are planning to build a high end gaming system, total Amperage available on the +12V rails—and how that capacity is distributed—could be as or more important than total Watts of power.
So once you have established the likely power needs of your system, please make sure that any PSU you buy will provide sufficient Amps of current on the various rails for all of your devices, and that it will have the proven reliability, service and support you deserve."
Most people here have what I'd call a "high end gaming system" so amperage on the +12V rails is likely more important.
Unless you're actually getting instability, like BSOD's or random reboots I wouldn't look to replace your PSU just yet.
How are you guys reaching loads of 688W. I only got 313W with my system. Is it the water cooling? A large number of HDD's could be a major factor, as could SLI GPU's. I'm only running a single GPU.
You're not selecting System Type "dual" or "quad processor" are you, note #1 specifically says "System Type: Based on physical processor(s). Multicore CPU counts as a single processor."
I'm not overclocking either, that might make a fairly large difference I suppose.
EDIT: whoa, overclocking makes a huge difference...
name='Mr. Smith' said:nrage,
I know you provided the original link, i'm sure it was to help a fellow oc3d'er
I'm slating the calculator, not you for trying to be helpful
I know
I was just trying to put the results into perspective, and/or figure out where we/it might be going wrong.
Rastalovich
New member
To be fair also, to exercise what a routine like this displays as a max wattage, u would need to do something to the effect of:
Burn a dvd
Full format u`r raid
Fold @ 100%
Render a full size screen, flip flopping.
(run the sound out u`r card)
Stream
All fans on max
.. and so on, all at the same time. (without windows having a siezure)
Burn a dvd
Full format u`r raid
Fold @ 100%
Render a full size screen, flip flopping.
(run the sound out u`r card)
Stream
All fans on max
.. and so on, all at the same time. (without windows having a siezure)
macgamesrule
New member
If you check those calculators vs actual measured power benches (Anandtech has a lot of these), you'll see they overestimate by something between 20-40%. Sure you want a margin of error, but it doesn't have to be that much. Most high end rigs (dual core, single GPU, air cooling) don't use over 400W. For quad core, SLI, and water cooling, you'd want 600W or more.
In the case of the Corsair 620W, I saw one review where they were running dual core and three (3) 8800GTX off of it, and it was perfectly stable.
In the case of the Corsair 620W, I saw one review where they were running dual core and three (3) 8800GTX off of it, and it was perfectly stable.
Thanks.FarFarAway
New member
600 odd watts here which is total and utter BS tbh
My system takes about 1/2 that at 100% load
My system takes about 1/2 that at 100% load
tsinc80697
New member
Can never get an accurate result, running a 480W PSU for my Q6600 and GTS with 4 HDD and a DVD-rw, this says something silly like 650W!
