Sign in with
Sign up | Sign in
Your question

Just a quick wattage question.

Last response: in Systems
Share
November 13, 2012 3:57:37 AM

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=N82E168...)?
thanks.
-Spooge

More about : quick wattage question

November 13, 2012 3:59:53 AM

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?
m
0
l
November 13, 2012 4:00:54 AM

The TX650 (corsair of course) the TX750 is a good 50 bucks more than the 650, so.
m
0
l
Related resources
November 13, 2012 4:01:58 AM

the corsair 650 will be fine
m
0
l
November 13, 2012 4:03:31 AM

really? are you sure it won't put to much strain on the 650?
m
0
l
November 13, 2012 4:05:11 AM

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.
m
0
l
November 13, 2012 4:07:57 AM

I need the cheapest quality PSU that can hand the 3570k and 2 7870's.
m
0
l
November 13, 2012 4:09:24 AM

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.
m
0
l
November 13, 2012 4:13:12 AM

Go ahead and post it, its always good to get feedback on a build.
m
0
l
November 13, 2012 4:18:34 AM

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)
m
0
l
November 13, 2012 4:20:25 AM

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
m
0
l
November 13, 2012 4:24:11 AM

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

Component choice is fairly good, no issues with it.
m
0
l
November 13, 2012 4:27:08 AM

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! >-<
m
0
l
November 13, 2012 4:29:12 AM

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).
m
0
l
November 13, 2012 4:33:25 AM

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.
m
0
l
November 13, 2012 4:37:11 AM

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.
m
0
l
November 13, 2012 4:52:50 AM

My sister bought a laptop with W8 on it. it's so useless.. It makes me wanna cry cx
m
0
l
!