It is currently Sat Dec 20, 2014 12:12 am

All times are UTC - 8 hours




Post new topic Reply to topic  [ 7 posts ] 
Author Message
 Post subject: Peak wattage for this system
PostPosted: Fri Aug 17, 2007 11:49 pm 
Offline

Joined: Tue May 15, 2007 10:06 am
Posts: 10
Can anyone help me with calculating the peak wattage for the following system. I've tried various online calculators, such as the one at www.extreme.outervision.com/psucalculatorlite.jsp, but they give absurd wattages - e.g. 850W or more.

1 x Core 2 Quad Q6600 @ 3.2GHz
1 x GeForce 8800 GTX @ stock
1 x High end motherboard
4 x 1Gb DDR2 RAM
1 x SB X-Fi sound card
2 x DVD+RW units
2 x 7200rpm harddrives
4 x 800rpm 120mm fans (two for CPU / GPU cooling, the rest for the case)
5 x USB units, e.g. webcam, wireless mouse etc

I'll probably build this in a P182 case, and I'd like to keep my Corsair HX520 PSU if possible.

Many thanks

_________________
Intel C2D E6400 @ 3.0GHz │ GeIL 4Gb PC6400 │ Gigabyte DS3 │ XFX 7900GT Extreme Ed (550/1630)
Dell Ultrasharp 2407WFP 24" │ Creative X-Fi XtremeMusic │ Western Digital 250Gb & 500Gb SATA │ Zalman air
CoolerMaster Praetorian 732 Black │ NEC & Samsung DVD+RW │ Corsair HX 520W Modular PSU │ Vista Ultimate


Last edited by Misiowiec on Sat Aug 18, 2007 12:35 am, edited 1 time in total.

Top
 Profile  
 
 Post subject:
PostPosted: Fri Aug 17, 2007 11:56 pm 
Offline

Joined: Tue Sep 20, 2005 6:55 am
Posts: 5085
Location: UK
~410W.


Top
 Profile  
 
 Post subject: Re: Peak wattage for this system
PostPosted: Sat Aug 18, 2007 12:27 am 
Offline

Joined: Tue May 29, 2007 9:25 am
Posts: 92
Location: Norway
Misiowiec wrote:
Can anyone help me with calculating the peak wattage for the following system. I've tried various online calculators, such as the one at www.extreme.outervision.com/PSUEngine, but they give absurd wattages - e.g. 850W or more.


Actually, I think that calculator just recommends a PSU (in this case 850W), it doesn't seem to tell you how much your rig will draw. (Link didn't work, but I've used the calc before).


Top
 Profile  
 
 Post subject: Re: Peak wattage for this system
PostPosted: Sat Aug 18, 2007 12:33 am 
Offline
Friend of SPCR

Joined: Mon Jun 13, 2005 6:48 am
Posts: 717
Location: San Francisco, CA
Misiowiec wrote:
Can anyone help me with calculating the peak wattage for the following system. I've tried various online calculators, such as the one at www.extreme.outervision.com/PSUEngine, but they give absurd wattages - e.g. 850W or more.

1 x Core 2 Quad Q6600 @ 3.2GHz
1 x GeForce 8800 GTX @ stock
1 x High end motherboard
4 x 1Gb DDR2 RAM
1 x SB X-Fi sound card
2 x DVD+RW units
2 x 7200rpm harddrives
4 x 800rpm 120mm fans (two for CPU / GPU cooling, the rest for the case)
5 x USB units, e.g. webcam, wireless mouse etc

I'll probably build this in a P182 case, and I'd like to keep my Corsair HX520 PSU if possible.

Many thanks


Simple Estimate, about 300-350W at absolute maximum load..and likely 180w or less at idle. If you're using a Corsair HX520, it is more than enough. You could probably get by on a "420" if it existed imho. I think the days of overinflated psu numbers must die!

_________________
Quiet Wuv Wizzie
Main: I5-3570K at 3.7ghz, 16GB DDR-1600@1.35v, Asrock Z77 Extreme6, Corsair 330R, Seasonic 760XP2, Sapphire Radeon 7950| Secondary/Lan: Core i3-2100, 4GB, Msi H67MA-E35, Radeon 6790, Sugo SG02| HTPC: Core i3-2100, 4GB, AsRock H67M-ITX/HT, Antec ISK300-65| NAS: Core I3-2100, 8GB, Antec TP-550, Lian Li PC-Q08B, 4X2TB WD Green| Lappy: Latitude D620 Core 2 T7600, Quadro NVS 110M


Top
 Profile  
 
 Post subject:
PostPosted: Sat Aug 18, 2007 12:53 am 
Offline

Joined: Tue May 15, 2007 10:06 am
Posts: 10
jaganath wrote:
~410W.


Simple and to the point I guess. Be nice to know how you derived at this figure though.

Joe Public wrote:
Actually, I think that calculator just recommends a PSU (in this case 850W), it doesn't seem to tell you how much your rig will draw. (Link didn't work, but I've used the calc before).


Sorry about that, link is fixed.

merlin wrote:
Simple Estimate, about 300-350W at absolute maximum load..and likely 180w or less at idle. If you're using a Corsair HX520, it is more than enough. You could probably get by on a "420" if it existed imho. I think the days of overinflated psu numbers must die!


I agree that PSU requirements are overinflated, but one could of course argue that is also the case with CPU / GPU speeds, digital camera megapixels and so on. Guess it's a matter of knowing what is enough for me, which isn't always the biggest. I'll wait for the next generation of games in Q4 before deciding if I need to upgrade to Quad etc, but it needs to run smoothly on a 24" screen. Good to know my current PSU will suffice though!

_________________
Intel C2D E6400 @ 3.0GHz │ GeIL 4Gb PC6400 │ Gigabyte DS3 │ XFX 7900GT Extreme Ed (550/1630)
Dell Ultrasharp 2407WFP 24" │ Creative X-Fi XtremeMusic │ Western Digital 250Gb & 500Gb SATA │ Zalman air
CoolerMaster Praetorian 732 Black │ NEC & Samsung DVD+RW │ Corsair HX 520W Modular PSU │ Vista Ultimate


Top
 Profile  
 
 Post subject:
PostPosted: Sat Aug 18, 2007 1:17 am 
Offline

Joined: Tue Sep 20, 2005 6:55 am
Posts: 5085
Location: UK
Quote:
Simple and to the point I guess. Be nice to know how you derived this figure though.


CPU: 150W (105W + 33% OC + wiggle room)
GFX: 150W (132W [link] + wiggle room)
M/B: 20W
RAM: 4W
PCI: 3W
DVD: 40W (burning)
HDD: 40W (spin-up)
FAN: 4W
USB: 2W

= 413W

you can subtract about 60W during normal max use because DVD drives unlikely to be maxed out at same time as GPU+CPU, and each HDD only takes ~10W after spin-up.


Top
 Profile  
 
 Post subject:
PostPosted: Sat Aug 18, 2007 11:09 pm 
Offline

Joined: Tue May 15, 2007 10:06 am
Posts: 10
jaganath wrote:
Quote:
Simple and to the point I guess. Be nice to know how you derived this figure though.


CPU: 150W (105W + 33% OC + wiggle room)
GFX: 150W (132W [link] + wiggle room)
M/B: 20W
RAM: 4W
PCI: 3W
DVD: 40W (burning)
HDD: 40W (spin-up)
FAN: 4W
USB: 2W

= 413W

you can subtract about 60W during normal max use because DVD drives unlikely to be maxed out at same time as GPU+CPU, and each HDD only takes ~10W after spin-up.


Excellent! Many thanks for your help.

_________________
Intel C2D E6400 @ 3.0GHz │ GeIL 4Gb PC6400 │ Gigabyte DS3 │ XFX 7900GT Extreme Ed (550/1630)
Dell Ultrasharp 2407WFP 24" │ Creative X-Fi XtremeMusic │ Western Digital 250Gb & 500Gb SATA │ Zalman air
CoolerMaster Praetorian 732 Black │ NEC & Samsung DVD+RW │ Corsair HX 520W Modular PSU │ Vista Ultimate


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group