Size psu for 95w tdp? Slow renders, no games.

BufferUpchuck

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Choose auld skool vs nu skool:

Silverstone ST400 400W ATX 12V 2.2
1 pcie 6pin, 2 x Dual SATA
Efficiency: >70% (Max 79.69%)
2 x 18a +12v rails:
+3.3V@28A,+5V@30A,+12V1@18A, +12V2@18A,-12V@0.5A,+5VSB@2.5A

vs

Corsair CMPSU-400CX 400W ATX12V V2.2 80 PLUS Cert, Core i7
Active PFC
1 pcie 6pin, SATA x6 (= 3 x dual sata?)
1 30a +12v rail:
+3.3V@20A,+5V@20A,+12V@30A,-12V@0.8A,+5VSB@2.5A

I know nothing about the other rails.
I'm leaning toward the Corsair because of 80+ and AFPC.

400w psu seems best to operate in efficient range.

Loads? for reference, this eventual config:
ECS A780GM-A ATX mobo (tho I'm looking at "oc for idiots" of intel Q66xx | Q82xx | Q94xx (?) Hmmm, but cpu power should remain <120W?)

2x16gb=32gb 1066 ddr2 (but possibly 4 smaller 800 ddr2)
Cpu max 95w TDP quad (95w is max of ECS mobo)
DVI gfx card, prefer passive/fanless (large hi res 3d renders, 0 or low fps)
IGP for secondary VGA display.
FDD, "some" HDD (RAID? "0/1/10")
2 opticals, but would burn on only one.
gigabit LAN

Externals.
The usual ps/2, etc. Printer.
External drive, probably self-powered. eSATA or usb2.0 [esata may be newegg error Ecsusa: no eSata]
Scanner.
Possibly a drawing tablet.
((tia...)
 

Roffey123

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I'd go with the 400W, should run everything you want...but...one thing....

32GB of DDR2 Memory? I sense a certain other oriface other than your mouth is doing the talking here. The GFX card has nothing to do with actual 3D renders (other than real-time games etc etc), so unless you have something high end I doubt you're going to need huge amounts of power. tbh I'd go with a 500W for security.

hard to say unless you put the specific compenents you have really. Also, TDP is the max for a CPU, not the motherboard.
 

BufferUpchuck

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hi, thx for reply.

whoa, no one else has ever mentioned noise coming out of my ears. :)


yeah, currently i doubt i'll do complex maya or rhino whatever with high renders. and cpu + ram are said to be needed to create 3d

high watt psu would work, but i'd like to keep in the psu's efficient range. so maybe i should look for ~450w..



yeah i picked up that tdp is the cpu, but if some cpu run 160w tdp, then the cpu is significant percentage of load. (in my 1st post, I was saying that this mobo limits tdp to 95w)

32 gb is a big reason why this mobo is better than others. base computers at retailers are now 4gb. looking back at previous computers, i have eventually installed about 4 to 5 times original amount of ram into computers, and that keeps them usable for about 9 years lifetime.

so apply same factor to current budget retail ram (4gb), gives: 4gb x (4 to 5) = 16 to 20 gb at end of use (9 years).
there are no 16 gb mobo's, so 32gb mobo is the one.

size of psu is my big question, since i see a lot of posts by people possibly running more hardware, yet some response will say "300w will be plenty for you!".

yet, when I use online psu calculators, i get results of 380w to 540w, depending on assumptions.
the biggest guess is power use of gfx card. which gfx card do i choose to represent slightly higher than average... for the future? so far, i've picked 8800gts (or 8800gtx) just because it seems common now, so 4 years from now, i might get a used 8800 gt* or radeon equivalent.

i run computers many hours, so i also wonder about the "capacitor aging" factor on psu size calculator. Just the phrase "capacitor aging" suggests it occurs more to cheap psus... ?
 

Roffey123

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Ah well in that case I'd go for something in the 500-600W region, prefrably with 80Plus certification. I've an 8800GTS myself and you'd stuggle to run it if your PSU is less than 500W (that's if you have a 320MB or 640MB version ofc).

http://www.newegg.com/Product/Product.aspx?Item=N82E16817256046

Expensive but if this computer is going to last you for a while, and be running almost 24/7 - I'm sure it'll be worth the investment. Also grab yourself a quad core Phenom II to help with those renders if you wish. Yes, I know intel CPUs are quicker BUT since the 940 is on par with the 9300/9400 and stops you from having to swap your motherboard out then you may want to have looksee:

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2010340343%201051733662%201302825342%201050746347&name=Phenom%20II%20X4
 

Helloworld_98

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ECS mobo's are cheap mobo's, their 32gb quote is useless since the biggest kit you're going to find is 16gb which is a quad channel/ 2x dual channel kit.

Also no point in going with 775 since prices will drop dramatically when 1160 comes out and it's more expensive than the equivalent amd proc with lower fsb(1333mhz vs 1800mhz or 2000mhz on am3 proc's)

For a PSU, if you aren't using a GFX card then a corsair 450w or 550w will serve enough and wattage doesn't matter, amperage does.