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Silverstone ST1000 or DA850 or other <~$250? - Page 2

post #11 of 17
I get 629W for you for you new rig with a single 2900XT and 763W with two of them in Crossfire..

I am wondering more and more what people put into that calculator
    
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post #12 of 17
Thread Starter 
Quote:
Originally Posted by Chozart View Post
I get 629W for you for you new rig with a single 2900XT and 978W with two of them in Crossfire..

I am wondering more and more what people put into that calculator
hmm lol, ok I get 844W for Single and 978W for Crossfire

here's what I entered

Quadcore
high end desktop
overclocked from 2400 to 3000 (stock voltage) - 131W (@85%TDP)
4 Sticks DDR2
ATI Radeon HD 2900XT
1 HDD 7200 RPM
2 DVD-RW/+RW drives
1 Floppy
Sound blaster - all models
+1 PCI Card (wireless ethernet)
2 x USB
1 x Fan Controller
2 x Cathodes
4 x LED 120MM Fans
Swiftech H20-220 Water Cooling Kit (Swiftech 655 and Dual 120 Rad)


All at 100% (could that be my problem, what would be something realistic?) 85%?

AT 85% load = 717W(single)/831W(CF)


I guess if I ran orthos, I still wouldn't be using 100% b/c my graphics is running 2D. To get to the 100% mark I would prob need to run orthosx2 and 3dmark06.

And If I O/C my graphics card, that's using more power then listed on the calculator :\\

What say you?

edit: while typing this I got my DA850 Shipping confirmation and tracking number!! Should be here by friday!!
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post #13 of 17
My entries for your rig:

Quadcore
high end desktop - 51W
overclocked from 2400 to 3000 (stock voltage) - 131W (@85%TDP) - 204W @ 3200MHz/1.55V/100%TDP
4 Sticks DDR2 - 20W
ATI Radeon HD 2900XT - 161W (single card)
1 HDD 7200 RPM - 27W (SATA drive)
2 DVD-RW/+RW drives - 59W
1 Floppy - 5W
Sound blaster - all models - 8W
+1 PCI Card (wireless ethernet) - 15W
2 x USB - 5W
1 x Fan Controller - 8W
2 x Cathodes - 6W
4 x LED 120MM Fans - 24W
Swiftech H20-220 Water Cooling Kit (Swiftech 655 and Dual 120 Rad) - 29W

622W total with a single 2900XT. 100% load, and again, nothing for cap aging. Add 137W for the second 2900XT (second card never uses as much as the first), and you get a total of 756W for Crossfire.
    
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post #14 of 17
Thread Starter 
Quote:
Originally Posted by Chozart View Post
My entries for your rig:

Quadcore
high end desktop - 51W
overclocked from 2400 to 3000 (stock voltage) - 131W (@85%TDP) - 204W @ 3200MHz/1.55V/100%TDP
4 Sticks DDR2 - 20W
ATI Radeon HD 2900XT - 161W (single card)
1 HDD 7200 RPM - 27W (SATA drive)
2 DVD-RW/+RW drives - 59W
1 Floppy - 5W
Sound blaster - all models - 8W
+1 PCI Card (wireless ethernet) - 15W
2 x USB - 5W
1 x Fan Controller - 8W
2 x Cathodes - 6W
4 x LED 120MM Fans - 24W
Swiftech H20-220 Water Cooling Kit (Swiftech 655 and Dual 120 Rad) - 29W

622W total with a single 2900XT. 100% load, and again, nothing for cap aging. Add 137W for the second 2900XT (second card never uses as much as the first), and you get a total of 756W for Crossfire.
lol AMAZING! That's weird, I couldn't get those same results, but I trust the master! Thank you!!! Yeah I left Cap aging blank, didnt even relize it was there.


edit kinda: hmm now reading and reanalyzing what I put in the calculator, I found my error that's probably very common, it pays to read

Quote:
Originally Posted by the calculator
System Type: 1

Attention: Dual Core CPU is a Single Processor.
^^^^ so quad core is single processor *smacks head* (makes me want to recalculate my current rig)


ooo I love this PSU calculator now!

I can't thank you enough choz!
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post #15 of 17
ah ok

Once you get this thing figured out, it's actually a pretty nice calculator.

Also, putting everything at 100% use is indeed a bit excessive. How often will you play a hardcore game while defragging your hard drives, copying a DVD from one drive to the other while running Orthos?
    
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post #16 of 17
Thread Starter 
Quote:
Originally Posted by Chozart View Post
ah ok

Once you get this thing figured out, it's actually a pretty nice calculator.

Also, putting everything at 100% use is indeed a bit excessive. How often will you play a hardcore game while defragging your hard drives, copying a DVD from one drive to the other while running Orthos?
oh I do that all the time, like to get 110% out of my computer
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quad core madness
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post #17 of 17
Quote:
Originally Posted by Chozart View Post
Not sure what settings you used in there... for your rig, I get 780W, an I used liberal settings.

Breakdown:
  • Motherboard: high-end desktop - 51W; probably across all rails. Assuming 4A on the 12V rail.
  • CPU: E6600 @ 3.85GHz, Assuming 1.55V - 156W. All on the 12V rail, thus 13A on the 12V rail.
  • RAM: 10W. None on the 12V rail.
  • Video: 263W. I picked the 'overclocked' settings for the 8800's. 21.92A on the 12V rail.
  • HDD's: 4 SATA drives - 108W. Generally split between 12V rail and 5V rail. Assuming 6A on the 12V rail.
  • Optical: assuming a pair of DVD burners - 59A. 4.92A on the 12V rail.
  • PCI cards: assuming two for the heck of it... where you fit them, idk... - 30W. 2.5A on the 12V rail.
  • USB/Fan controller: assuming four USB devices and a fan controller: 18W. 1.5A on the 12V rail.
  • Fans: five high performance 120mm fan and one 250mm fan: 55A. 4.58A on the 12V rail.
  • Watercooling: 30W. 2.5A on the 12V rail.
Total 780W. Note that it basically never happens that all devices run at the same time at max load.

Cap aging? that's nonsense... they just add the % to total wattage. Not exactly a scientific method. Plus, we're talking about high-end, nearly industrial specified PSUs here... such Wattage loss would be completely unacceptable for these units. I know that if my PSU lost 10% of it's power after a year, it'll be on the way back to the manufacturer for an RMA claim!

Also, I included the estimated current on the 12V rail. The total will be nearly 61A. The 850W DA850 with 70A on the 12V rail is more than enough.

Note that I included items I just guessed about. If he doesn't have a fan controller, all the USB devices (mouse and keyboard are included by default), and only one optical drive, that saves another 77.5W / 6.46A on the 12V rail.

@Chozart

My bad,

Don't know what I did, but now I come up with 787..

Thanks Choz, I feel a little better...
    
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