Realistic PSU wattage for my system

[Mullet]

All

I am running a 680i based system and will be dropping in a single 8800GTX this weekend. I have an important question...will an M12700W Seasonic PSU be powerfull enough for me to upgrade to Sli 8800GTX cards....my specs include:

Asus Striker Extreme
E6600
Dual Raptor Xs in RAID 0
Single Maxtor 300gb HDD
X-fi fatality
Single CD/DVD rw combo
2gb ram
DDC Ultra water pump

I know the 700W will be fine with a single GTX how will it fair with 2 of these beasts.....

[redsky009]

Try this:

http://extreme.outervision.com/psucalculator.jsp

[Blitzen]

Try this:

http://extreme.outervision.com/psucalculator.jsp

Its a nice site but very flaky when it comes to giving the correct values.
Its OK for a 'ball-park' figure but don't take it literally.

[Hans Voralberg]

Something like this

http://www.amazon.com/P3-Internation.../dp/B00009MDBU

[kempez]

I'd say you'd be ok with 700w as long as you don't want 8800 SLI

Something like an OCZ Gamextream or an Etasis 750w would be stable and nice

[redsky009]

Its a nice site but very flaky when it comes to giving the correct values.
Its OK for a 'ball-park' figure but don't take it literally.

How flaky? I used what they calculated + 100W (you dont want your psu running at full load all the time anyway) - should I have been more conservative?

[Clunk]

I reckon the Seasonic 700w will be fine for that setup.

[Mullet]

Clunk.....for Sli or non-sli??

[Clunk]

for non sli...if it were me and i was going sli, i would have a look at the Enermax galaxy. But saying that, i think sli is a bit rubbish

[redsky009]

If you're gonna spend £600 on two 8800's for SLi you might as well got the whole hog and get an 850-1000W PSU

[Clunk]

agreed^^ but also, scan quite often have the galaxy PSUs on today only and i think the 850w one comes out around 168 quid, which is only a few quid more than the seasonic.

[theuncharmed]

Lo D

The INQ have a good story on PSUs and SLI (plus overclocking).

http://theinquirer.net/default.aspx?article=36066

I knew the 700w would work fine, but still I would suggest you future proof yourself - may as well as the prices are very similar.

[kempez]

I'd get the 800w OCZ Gamextream tbh if I was going SLI 8800

[theuncharmed]

I've not heard great things from OCZ. I've come to learn and read that Tagan and Seasonic are "the" PSUs to buy.

[Hans Voralberg]

Buy PPC PSU, nothing beat them

[theuncharmed]

Oh yeah, PPC are better if not the best PSUs available, but that's the £300 for the one Mullet was looking at.