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Re: Technical advice!
Posted: Wed Jun 02, 2010 7:10 am
by Eggar
havensole wrote:Finding a psu with 4x 8pin connectors might be hard. If you are in the US here are some to look at:
http://www.newegg.com/Product/ProductLi ... rchInDesc=
The big thing to look at is the amps on the +12v rail which might be your problem. If your system is trying to pull too many amps the psu could shut itself down in order to protect itself. Typically people will say to try and find a psu with a single +12v rail as it is kind of difficult to figure out which plug has which +12v rail on it when you have a psu with more then one. I would imagine if you are using a psu with at least 2 8-pin plugs built on that using the adapters for any other ones you need would be fine. You will probably want something with 55-80 amps across the +12v rails and 700-1000 watts depending on your system specs and what cards you plan on putting in it. 2x gtx480's will probably demand something more like 900-1200 watts. Radiance can confirm this as he has multiple gtx480's.
Very Informative! I appreciate your knowledge in this area havensole. Get's me on the right Track. I'm sure I'm near the same area with the 2 GTX 260 Maxcore's I'm running. The PSU was the last part I collected for my machine rather in a hurry. A local vendor had this one and I will go back and check the specs on it. But I believe it was rather on the cheap, and I shoulda' known better.
Once again
THANK YOU!
Re: Technical advice!
Posted: Wed Jun 02, 2010 7:15 am
by Eggar
oops! did I say cheap?
Maybe too cheap!
http://www.geeks.com/details.asp?invtid=ESTAR680XBK
If I'm reading the specs correctly, I'm sure what you described is pretty much what's at fault. I will have to rectify that in a hurry. Won't be tasking it too hard til then, I guess.
Thank you again
Re: Technical advice!
Posted: Wed Jun 02, 2010 7:27 am
by Eggar
I Think I'll give This a Try!
Hope I'm not shooting myself in the foot again, but it
has great reviews and is a supplimentary dedicated GPU power
Drive Bay PSU - Different....
Re: Technical advice!
Posted: Wed Jun 02, 2010 7:28 am
by Eggar
Eggar wrote:I Think I'll give This a Try!
Hope I'm not shooting myself in the foot again, but it
has great reviews and is a supplimentary dedicated GPU power
Drive Bay PSU - Different....
wow! oop!
http://www.newegg.com/Product/Product.a ... 6817104054
Re: Technical advice!
Posted: Wed Jun 02, 2010 7:39 am
by Eggar
aww, hell
might as well do it right this time!
need a psu with longer connectors anyways
why even attempt to go partway again!
http://www.newegg.com/Product/Product.a ... 6817121037
DOne!
(4 posts in a row, my new record!)
Re: Technical advice!
Posted: Wed Jun 02, 2010 10:17 am
by GeoPappas
havensole wrote:2x gtx480's will probably demand something more like 900-1200 watts.
Everytime I see an estimate for video card power requirements, they seem to go higher and higher
Pretty soon, people will be saying that you need your own power plant in the backyard
According to NVIDIA, a GTX 480 requires a maximum of 250W. So two cards would require 500W. You would then need to add in the CPU, memory, HDDs, etc to calculate total power requirements.
See here for more info:
http://www.nvidia.com/object/product_ge ... 80_us.html
FYI: The GTX 470 requires 215W.
http://www.nvidia.com/object/product_ge ... 70_us.html
Re: Technical advice!
Posted: Wed Jun 02, 2010 12:47 pm
by radiance
GeoPappas wrote:havensole wrote:2x gtx480's will probably demand something more like 900-1200 watts.
Everytime I see an estimate for video card power requirements, they seem to go higher and higher
Pretty soon, people will be saying that you need your own power plant in the backyard
According to NVIDIA, a GTX 480 requires a maximum of 250W. So two cards would require 500W. You would then need to add in the CPU, memory, HDDs, etc to calculate total power requirements.
See here for more info:
http://www.nvidia.com/object/product_ge ... 80_us.html
FYI: The GTX 470 requires 215W.
http://www.nvidia.com/object/product_ge ... 70_us.html
850 watts is enough for i9 and 2x GTX480, we've ran them for days here, no issues.
Radiance
Re: Technical advice!
Posted: Thu Jun 03, 2010 11:50 am
by Florinmocanu
in full load a GTX 480 consumes around 300 W, probably in a high end game like crysis or when rendering it goes down to around 250-270W. 2 x 270W + 100-110 for a high-end CPU + 100W rest of the system = 750W-800W maximum. So a good quality 850W PSU will support such a system without issues.
Re: Technical advice!
Posted: Thu Jun 03, 2010 2:07 pm
by Amplitude
just go for a highend PSU from Seasonic or Corsair (typically in the 850w range) and you can't go wrong with those brands.