Is 750w enough?

[Shavako]

Going to be building a PC soon and I'm not sure what size PSU I'll need. I used the calculator at http://extreme.outervision.com/PSUEngine and it says 655w minimum and 711 recommended so I was thinking 750W would be enough. Here's the components:

Gigabyte GA-Z68X-UD3H-B3
i5 2500k (Likely to be OCed @ 4.4ish, whatever OC Genie will get me to)
Corsair Vengeance 8GB 1600
HD 6970 and I might add a second one later (or 7970 if they're decently priced when they get released)
Cooler Master V6 heatsink
Seagate Barracuda 7200RPM 500GB
Samsung Blu-Ray combo
2x 200mm fans and 1 120mm
A couple code cathodes
Possibly a fan controller (only if fan noise is crazy which I doubt it will be)

The PSU I'm looking at is the OCZ Fatal1ty 750W 80 Plus Bronze Certified

Will that be enough power?

 

[Shavako]

Like I said I meant no disrespect as you probably know a lot more than I, I just thought 1000W sounded a little overboard. I guess I didn't notice that you were including a GPU OC. I'm glad we can agree that 850W seems to be enough

But yeah, the GPU I'm looking at has a light overclock already which should be enough for me. By the time I would need to give it a big OC I'm pretty sure I'll be ok with spending the money for a new card lol.

I think it also helps a lot that the PSU I'm going with is Gold Rated. Thanks for helping even though we were a little off que on my plans 😉

 

[Shavako]

$190 is just too much for a PSU. The OCZ is already pushing my budget up at $170 and it's also 80Plus Gold rated.

 

[inzone]

Like I said I meant no disrespect as you probably know a lot more than I, I just thought 1000W sounded a little overboard. I guess I didn't notice that you were including a GPU OC. I'm glad we can agree that 850W seems to be enough

But yeah, the GPU I'm looking at has a light overclock already which should be enough for me. By the time I would need to give it a big OC I'm pretty sure I'll be ok with spending the money for a new card lol.

I think it also helps a lot that the PSU I'm going with is Gold Rated. Thanks for helping even though we were a little off que on my plans 😉

I think that you had a good choice when you posted the Antec 900w, I have not heard a lot of good things about OCZ power supplies and to be honest I believe you should be choosing between Antec, Seasonic and Corsair. The 850w to 900w range is a good choice and as I have said many times you can always get more power supply than you need , after all you are the one buying it and I totally disagree with anyone saying you only need a certian amount and there's no need to go with that high of a psu and you should be fine with a lower watts psu. They are not the one buying it you are so you can get whatever you want to. You could get a 1200w psu if you wanted to spend that much money , it's your computer , put what you want , you don't have to justify to anyone what you want to buy. You just never know what you are going to do or add to your pc.

Antec High Current Gamer Series HCG-900 900W ATX12V v2.3 / EPS12V v2.91 SLI Certified CrossFire Certified 80 PLUS BRONZE Certified Active PFC Power Supply
$129.99

 

[inzone]

SeaSonic M12II 850 SS-850AM 850W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Semi-modular Power Supply
$149.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151108

CORSAIR Professional Series HX850 (CMPSU-850HX) 850W ATX12V 2.3 / EPS12V 2.91 80 PLUS SILVER Certified Modular Active PFC Power Supply
$169.99 and a $20 rebate makes it $149.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139011

Here are a couple of good quality 850w psu's for $150.

 

[Shavako]

Yeah I forgot about that Antec 900W Gamer Series. I wish it was modular but it's a good price. Is it worth the extra $30 or more I'm going to pay for a quality 850-900w PSU for modular cabling? I only ask because I've never worked with a modular PSU.

 

[Shavako]

The PSU I have now isn't modular and I didn't mind it. It also had very few connections because it's a crappy ePower 550W. I would eventually be using all of the PCI connections on the TX850 but there would be at least 6 SATA power cables left over but it might be alright. I don't want to regret not getting modular though. And it could add $50 dollars more but not necessarily the TX is $134 and the HX is $169. That's only $35 more which may be worth it for modular cabling and it's Silver rated compared to the Bronze rated TX.

 

[ko888]

Modular add $50 to the price of a PSU or more

That is why the TX850 is available for those who do not mind the standard octopus

But there's a CORSAIR Enthusiast Series TX850M 850W which is semi-modular and sells for $139.99 at Newegg.com. It's only $5 more than the standard fully hardwired model.

 

[FinneousPJ]

750W is borderline, 850W is safe.

 

[FinneousPJ]

I found modular cables can be dodgy with a high load. Mainly due to oxidation. Soldered wire does not.

Quality units have gilded connectors AFAIK.

 

[ko888]

the problem is fan vibration can abrade the gold plate, after a couple of years its not doing so good

I am thinking the TX850 is a good value for the $

Do you have the data or the links to sources to back that up?

 

[delluser1]

Look it up in Google, vibration can do all kinds of unwanted things

Look it up in Google ? You should be able to provide the evidence to back up what you claim.

You do realize that those vibrations would act the same on the connectors of a non-modular psu don't you ?
Maybe all connections should be soldered, would make upgrading a video card hell , no ?

PS; Corsairs modular TXM has a 5 year warranty and the HX units have a 7 year warranty

 

[ko888]

Look it up in Google, vibration can do all kinds of unwanted things

The TX850 has a 5 year warranty and it likely will last much longer. Mainly due to good capacitors. I assume the machine is clean.

So what you have is conjecture without proof. If the problem truly existed, as you seem to believe, then there would be a spate of this problem being reported and yet it doesn't seem to exist.

Vibration also causes unwanted noise, but so what?

 

[delluser1]

http://www.ehow.com/list_7519530_vibration-resistance-electrical-components.html

Somehow I don't feel the need to worry about " rocket induced vibrations " in my PC case.

 

[ko888]

And yet still no links to cause and failure rate of the modular connectors on consumer computer power supply units.

 

[Shavako]

I'm going to go with either the TX850M or the HX850. Just have to decide if it's worth the extra money for the silver rating and the nice blue lettering that will match my case lighting 😉

 

[davcon]

I'm going to go with either the TX850M or the HX850. Just have to decide if it's worth the extra money for the silver rating and the nice blue lettering that will match my case lighting 😉

Where do you shop(country)?
The HX850 is superb btw.

 

[Shavako]

Im in the states. I had planned to order from newegg but I can get the same stuff from circuit city for about $50 cheaper so I'm probably going to order from there.

 

[davcon]

Im in the states. I had planned to order from newegg but I can get the same stuff from circuit city for about $50 cheaper so I'm probably going to order from there.

The HX850 is definitely worth the extra cash over a TXM.
The HX850 is very efficient and is actually 80+ Gold rated and carries an extra 2 yrs on the warranty.7yr
http://www.plugloadsolutions.com/80PlusPowerSuppliesDetail.aspx?id=25&type=2
I've been running a HX750 for over 2yrs = quiet and rock solid.

 

[truegenius]

Im in the states. I had planned to order from newegg but I can get the same stuff from circuit city for about $50 cheaper so I'm probably going to order from there.

i like your sig.
I have learned programming, forgot that, and now i will try to hack nvidia card to work with ati one so as to use phyx on a ati system.

 

[mathgod]

http://www.anandtech.com/show/4061/amds-radeon-hd-6970-radeon-hd-6950/24

 

[Shavako]

i like your sig.
I have learned programming, forgot that, and now i will try to hack nvidia card to work with ati one so as to use phyx on a ati system.

Thanks lol. I still have to finish learning programming.