Building a new system

E

Endrithius

Limp Gawd
Joined
Aug 7, 2006
Messages
180
Alrighty - so this will be my first SLi system. I am not really building a NEW system but really hoping to improve upon my current.

Current proc - e6300 @2.8
Current Ram - xms2 667 @ 800 sync'd to proc
Evga 680i mobo

I want to run dual 8800GTS 320's - I already get GREAT performance from my main which runs 600/900 (yea i know i need to update my sig) but I really want to be ready for games like Crysis - I have upgraded to a dell 2405 so I do run 1920x1200.

I currently use an Antec NeoHE-550 psu which is NOT going to be enough for 2 8800's. I am thinking of buying 2 of these - http://www.newegg.com/Product/Product.aspx?Item=N82E16817153037 - and running each card on one - since they have a peak of 300w i figure 1 for 2 cards is a worthless endeavor.

I was curious if anyone has used these and know their reliability/performance. I have looked for a few reviews but I come up empty handed.


Let me know guys!
 
out of stock it seems...

i feel like i've been living under a rock. didn't even know these things existed.
 
15A per rail?! Wow - you do realize that a single 8800GTS can pull more than that right? Now - can these PSU's give more power to a rail if it needs it (i.e. one rail needs 20 but the other only needs 10) can it auto switch for that?
 
Yes, they can... And do. I built a system with this as its backbone using...

Q6600-Quadcore Processor
EVGA 680i-AR
EVGA 8800GTX
2GB of DDR2800 Mem
2X 250Gb HDD
2X Sony DVD-RW drives
And then powering all the fans on the case and its still enough.
 
15A * 12V = 180 Watts......yeah....right

edit: a GTX doesn't use more than 125 watts(i think) and that would be about 10 amps
 
Its overclocked very nicely and thats idle i think... dont forget about peak usage.
 
Endrithius said:
Alrighty - so this will be my first SLi system. I am not really building a NEW system but really hoping to improve upon my current.

Current proc - e6300 @2.8
Current Ram - xms2 667 @ 800 sync'd to proc
Evga 680i mobo

I want to run dual 8800GTS 320's - I already get GREAT performance from my main which runs 600/900 (yea i know i need to update my sig) but I really want to be ready for games like Crysis - I have upgraded to a dell 2405 so I do run 1920x1200.

I currently use an Antec NeoHE-550 psu which is NOT going to be enough for 2 8800's. I am thinking of buying 2 of these - http://www.newegg.com/Product/Product.aspx?Item=N82E16817153037 - and running each card on one - since they have a peak of 300w i figure 1 for 2 cards is a worthless endeavor.

I was curious if anyone has used these and know their reliability/performance. I have looked for a few reviews but I come up empty handed.


Let me know guys!
Click to expand...

I would use the 640mb gts cards at that resolution minimum.
 
Alrighty - so I troll'd around a little bit and found this chart - seems to be fairly accurate from the different real world info that I Get from people.

Before I post it - nVidia says that the 8800GTX can pull a peak of ~225W of power - thats a LOT of heat.

Mark84 from atomicmpc forums writes:

First up I'd like to thank michael999 for starting the original thread, here http://www.atomicmpc.com.au/forums.asp?s=2&c=7&t=6309.

Alright, below is largely what michael999 had in his thread but with updated Wattages and cards, plus any other info I can find along the way.

Please, if you find any info related to this thread or more accurate wattage readings for cards please post the link in here so that I can update the list.

Right, on with the show!

--------------------------------------------------------------------------------------
The Truth About Graphics Power Requirements V2
--------------------------------------------------------------------------------------

Ok. There has been much confusion lately as to how much power you need to run the new uber card, the answer is not as simple as first thought. It turns out many older cards are using more power than the new ones. And the myth that NVIDIA suck more juice is a just that, a myth.

It seems that the main factors behind power consumption are:
- Core/Mem clock speeds - Higher clocks equal higher power consumption. (eg look at the difference between the 7900 GTX & GT, both the same GPU and memory but the core and memory are clocked differently, producing a 36W difference. Similar story with the X1900XT/XTX)
- Die size/fabrication process (110nm/90nm etc) - Smaller process equals a smaller die, thus less power needed. For example look at the 7900 GTX, it's a 196 mm² die size while the X1900XTX is 352 mm², both are 90nm, and clocked almost exactly the same but the 7900 GTX draws 36W less.
- Amount and type of onboard RAM - Greater amounts of onboard RAM capacity mean greater power consumption. Also newer GDDR draws less power GDDR > GDDR2 > GDDR3 > GDDR4. (eg look at the difference between the X1900XT & X1900XT 256MB model, same in every way except capacity and GDDR3 vs GDDR4 respectively, which results in a 10W drop)

--------------------------------------------------
GFX Card Comparison Table
--------------------------------------------------

This table shows GFX cards power consumption, not what the recommended PSU requirements are, but rather the actual draw of the card. These are the full load power consumption figures for the GFX card only.

All readings taken from here http://www.extreme.outervision.com/psucalculator.jsp unless other wise noted with a * or some other symbol etc. Readings with a % (percent) symbol are the official "peak power consumption" from the manufacturer. For everything else, see the legend below.


ATI Multicard
----------------------------

X1900 XTX CF_____}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}| 230W (XTX with XT master card)
X1900 XT CF______}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} 228W
X1900 GT CF______}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}| 150W ²
X1800 XT CF______}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} 216W
X1800 XL CF______}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} 124W (XL with XT master card)
X1600 XT CF______}}}}}}}}}}}}}}}}}}}}}}}| 94W
X1600 PRO CF____}}}}}}}}}}}}}}}}}}}}| 82W ²
X1300 PRO CF____}}}}}}}}}}}}}}}}}} 72W

X850 XT CF_______}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} 152W
X800 XL CF_______}}}}}}}}}}}}}}}}}}}}}}}}}}}| 110W

ATI Single Card
----------------------------

HD 2900 XT_______}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}| 230W ~ (512MB)
HD 2600 XT_______ ?
HD 2400 XT_______ ?
HD 2400 Pro______ ?

X1950 XTX________}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}' 125W ²
X1900 XTX________}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}' 121W ²
X1900 XT_________}}}}}}}}}}}}}}}}}}}}}}}}}}}' 109W ²
X1900 XT_________}}}}}}}}}}}}}}}}}}}}}}}}|' 99W ^ (R580+ 256MB model)
X1950 Pro________}}}}}}}}}}}}}}}}| 66W ²
X1900 GT_________}}}}}}}}}}}}}}}}}}|' 75W ²
X1800 XT OC _____}}}}}}}}}}}}}}}}}}}}}}}}}}}} 110W ² (XT OC version, 700/1600)
X1800 XT_________}}}}}}}}}}}}}}}}}}}}}}}}}|'103W ²
X1800 XL_________}}}}}}}}}}}}}}' 57W ²
X1800 GTO_______}}}}}}}}}}}} 48W ²
X1650 XT_________}}}}}}}}}}}}}|' 55W ²
X1650 Pro________}}}}}}}}}}|' 43W
X1600 XT_________}}}}}}}}}}| 42W ²
X1600 Pro________}}}}}}}}}}' 41W ²
X1300 XT_________}}}}}}} 28W
X1300 Pro________}}}}}}}|' 31W ²
X1050____________ ?

X850 XT PE_______}}}}}}}}}}}}}}}}}}| 74W
X850 XT__________}}}}}}}}}}}}}}}}} 68W ²
X800 XT PE_______}}}}}}}}}}}}}}}|' 63W ²
X800 XT __________}}}}}}}}}}}}}}| 58W
X800 Pro _________}}}}}}}}}}}} 48W ²
X800 XL __________}}}}}}}}}}}}' 49W ²
X800 GTO ________}}}}}}}}}}}} 48W ²
X800 GT__________}}}}}}}}}|' 39W ²
X800_____________}}}}}}}}}' 37W
X700 PRO ________}}}}}}}}' 33W ²
X700_____________}}}}}}}' 29W
X600_____________}}}}}}}}}}| 42W
X550_____________ ?
X300 SE__________ ?
X300_____________}}}}}}}}' 33W

9800 XT__________}}}}}}}}}}}}}}} 60W ²
9800 Pro_________}}}}}}}}}}}|' 47W ²
9700/9800________}}}}}}}}}}| 42W
9600 XT__________}}}}}| 22W ²
9600 Pro_________}}}}| 18W ²
9500/9600________}}}}' 17W
9000-9200________}}}}}}}}|' 35W

7x00-8500________}}}}}}}| 30W
<=32MB AGP/PCI _}}}|' <15w

FireGL range
GL V7530________}}}}}}}}}}}}}}}}}}}}}}}}}}}} 112W #
GL V7100________}}}}}}}}}}}}}}}}}}}| 78W ³

nVidia Multicard
----------------------------

8800 GTX SLI_____}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} 378W ^

7950 GX2 SLI_____}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} 220W ² ("Quad SLI")
7900 GX2 SLI_____}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}' 301W ("Quad SLI")
7900 GTX SLI_____}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}|' 199W
7900 GT SLI______}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}|' 143W
7800 GTX 512 SLI _}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} 196W ³
7800 GTX SLI_____}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}' 177W
7800 GT SLI______}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}' 129W
7600 GT SLI______}}}}}}}}}}}}}}}}}}}}}}}|' 95W
7600 GS SLI______}}}}}}}}}}}}}| 54W ²
7300 GS SLI______}}}}}}}} 32W ²

6800 Ultra SLI_____}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}' 161W
6800 GT SLI ______}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}| 126W
6800 GS SLI______}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} 124W
6600 GT SLI ______}}}}}}}}}}}}}}}}}}}}}}}}}}}|' 111W

nVidia Single Cards
---------------------------------

8800 Ultra________ ?
8800 GTX ________}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} 132W ² (768MB)
8800 GTS OC_____}}}}}}}}}}}}}}}}}}}}}}}}}}}}}' 117W ² (640MB 576/1350)
8800 GTS ________}}}}}}}}}}}}}}}}}}}}}}}}}}| 106W ² (640MB)
8800 GTS ________}}}}}}}}}}}}}}}}}}}}}}}}}|' 103W ² (320MB)
8600 GTS ________ ?
8600 GT _________ ?
8500 GT _________ ?

7950 GX2 ________}}}}}}}}}}}}}}}}}}}}}}}}}}}| 110W ²
7900 GX2 ________}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}|' 143W %
7900 GTX ________}}}}}}}}}}}}}}}}}}}}} 84W ²
7950 GT _________}}}}}}}}}}}}' 49W $
7900 GT _________}}}}}}}}}}}} 48W ²
7900 GS _________}}}}}}}}}}}' 45W ²
7800 GTX 512_____}}}}}}}}}}}}}}}}}}}}}}}| 94W ²
7800 GTX ________}}}}}}}}}}}}}}}}}}}} 80W ²
7800 GT _________}}}}}}}}}}}}}} 56W ²
7800 GS _________}}}}}}}}}}}}} 52W
7600 GT _________}}}}}}}}} 36W ²
7600 GS _________}}}}}}|' 27W ² (underclocked GT)
7300 GT _________}}}}}}' 25W $ (OC version, 500/1400)
7300 GS _________}}}} 16W ²
7300 LE__________}}}}}} 24W

6800 Ultra________}}}}}}}}}}}}}}}}}} 72W ²
6800 GT _________}}}}}}}}}}}}}}' 55W ²
6800 GS_________}}}}}}}}}}}}}| 54W ²
6800 ____________}}}}}}}}}| 38W ²
6600 GT _________}}}}}}}}}}}} 48W ²
6600 ____________}}}}}}|' 27W ² (GDDR2 model)
6200 ____________}}}}}}}}|' 35W

FX 5950 Ultra_____}}}}}}}}}}}}}}}}}}' 73W ²
FX 5900 Ultra_____}}}}}}}}}}}}}}|' 59W ²
FX 5800 _________}}}}}}}}}}}}}' 53W
FX 5700 Ultra_____}}}}}}}}}}}| 46W ²
FX 5700 _________}}}}}} 24W ²
FX 5600 _________}}}}}}}}}}}}}}}}' 65W
FX 5200 _________}}}}}}}}| 34W

GF4 Ti __________}}}}}}}}|' 35W
GF3 Ti-GF4 MX ___}}}}}}}| 30W
<=32MB AGP/PCI_}}}|' <15w

Quadro range

FX 4500__________}}}}}}}}}}}}}}}}}}}}}}}}}}}' 109W
FX 4400__________}}}}}}}}}}}}}}}}}}}}}}}}}}}| 110W
FX 4000 PCI-E ____}}}}}}}}}}}}}}}}}}}}}' 85W
FX 4000 AGP _____}}}}}}}}}}}}}}}}}}}}}}}}}}' 105W
FX 3450__________}}}}}}}}}}}}}}}}}}}}|' 83W
FX 3400__________}}}}}}}}}}}}}}}}}}}}}}}}}' 101W
FX 1400__________}}}}}}}}}}}}}}}}}}|' 75W
FX 1300__________}}}}}}}}}}}}}}|' 59W
FX 540___________}}}}}}}}|' 35W
FX 330___________}}}}}' 21W


S3 Single Cards
-----------------------------

Chrome S25_______}}}}}' 21W
Chrome S27_______}}}}}} 24W ²
Click to expand...

So. Judging from this - I SHOULD be able to use 1 of the pure power psu's or even my own HE 550 without issue. But - I think I may move to the 700W PC P&C Single rail psu.

Any arguments (with sources to back up your argument) are welcome, because honestly - thats how the best info is found.
 
the ocz is definately interesting
too bad i dont have ocz ram lol - i am building a themed machine - all evga - for slizone

evga mobo
evga video cards
evga badging

yea i know ima nerd - get over it LOL
 
hey russianhaxor - i am having a little bit of trouble with my GTS SC - can you hit me up in a private chat for some advise - or just aim if you want - mcwillis83


thx friend
 
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