Just a quick wattage question.

[Zed_Spooge]

Hello. I just need to ask a quick question. I'm putting together a build for a friend, but I need to know this;
Will 650 watts be enough for crossfired 7870's (http://www.newegg.com/Product/Product.aspx?Item=N82E16814125418)?
thanks.
-Spooge

 

[manofchalk]

650W is enough for dual cards, but will leave the PSU running fairly hard under load. 750W is the recommended wattage for dual cards.

What PSU are you looking at?

 

[Zed_Spooge]

The TX650 (corsair of course) the TX750 is a good 50 bucks more than the 650, so.

 

[jasont78]

the corsair 650 will be fine

 

[Zed_Spooge]

really? are you sure it won't put to much strain on the 650?

 

[manofchalk]

Dont think the problem is even wattage, more the fact the TX650 only has two 6+2 PCI-E connectors. A 7870 needs two 6-pins.
There are other good options in the 750W area.

 

[Zed_Spooge]

I need the cheapest quality PSU that can hand the 3570k and 2 7870's.

 

[manofchalk]

XFX Core edition 750W, 80+ Bronze. $110 ($15 rebate)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207015

 

[Zed_Spooge]

thanks a ton! interested in seeing the rest of the build/give some advice? I'm not a computer genius, I'm just the most savvy of my friends.

 

[manofchalk]

Go ahead and post it, its always good to get feedback on a build.

 

[Zed_Spooge]

Okay, here it is:
Case - Cooler Master Storm Enforcer
Mobo - ASRock Z77 full ATX etcetc
PSU - the one you suggested
CPU - i5 3570k
GPU - Radeon 7870 Gigabyte GHz edition (will buy another one later)
HDD - WD Caviar Blue 500GB 7200RPM Drive
CPU cooler - CM Hyper 212 Evo
Optical drive - Asus dvd/cd burner, the standard blah.

Kinda feel like I'm missing something because it's so cheap. (896)

 

[Zed_Spooge]

I'll provide links to newegg if you want, it's just that takes alot of tab opening, and the laptop I'm on atm can't handle lots of tabs u.u

 

[manofchalk]

Because you are missing something, RAM. :lol:
No SSD? Such a small HDD?

Component choice is fairly good, no issues with it.

 

[Zed_Spooge]

Ah, thanks. I'll get the normal old 8GB g skill 1600 1.5v ram. He specified he didn't need more than 500gb of memory to me. Yeah, no ssd. he's on a budget. Also; Damn! Why isn't windows 7 cheaper! >-<

 

[manofchalk]

Get an Ares kit if you arent already. Low profile so it wont conflict with a heatsink larger than the EVO if he ever upgrades to a Noctua or something.

You buying an OEM or Retail copy?
An OEM key is around $100 but can only be used on the one machine (the motherboard to be precise). The Retail key can be used on multiple machines but costs a fair bit more (~$230 I think).

 

[Zed_Spooge]

even 100 is crazy for W7. now that W8 is out, W7 should be like 40 bucks for oem </3 cx Btw, W8 is the bane of all things desktops.

 

[manofchalk]

Have yet to try it myself, so I cant comment on it.
Been trying to download the Release Preview to install on a HDD I have laying around, but it seems to have disappeared from the Internet.

 

[Zed_Spooge]

My sister bought a laptop with W8 on it. it's so useless.. It makes me wanna cry cx