PC Peripherals URGENT: Can the Corsair CX400 take it? or Need Tagan 500W?

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sato1986

sato1986

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I want to buy a New silent PSU.. Will the CX400 be enough? or i go for Tagan 500W?

My current config is:

Core 2 Duo e7200 @ 2.85GHz

XFX 8800GT XXX Edition (670Mhz Core/1950Mhz memory)

2x1GB OCZ DDR2-800Mhz 5-5-5-15

Gigabyte EP31-DS3L with All Solid Caps

3HDDs 80 + 160 + 500

3-4 fans

The following link shows the efficiency of the SMPS at 50% load and at 100% load:

AnandTech: 300W to 450W: 20 Power Supplies on the Test Bench

This link shows the System Power consumtion by a similar system with a Core2X6800 with a 8800GT/8800GT SLI and 4GB Ram at Idle n at Full Load:

AnandTech: NVIDIA GeForce 8800 GT: The Only Card That Matters

So if i plan to OC my proccessor to arnd 3.8Ghz and my RAM to arnd 1066Mhz @ 5-5-5-15 @ 2.1V (or maybe get 4GB Ram), n may plan to get a HD4850 512MB.... Then, Can the CX400 Handle all of it @ 80% + efficiency (PS: PSU's work very well at 50% to 80% Load.)

And what about if i plan for smthing like 4870 1GB in future..

This is the link for TOTAL System Power Consumption with a Core 2 Extreme QX9650 3.0GHz and 2GB Ram @ 4-4-4-12 along with a X38 mobo.

GeForce GTX 260 reloaded vs. the Radeon HD 4870 1GB - The Tech Report - Page 11

All suggests that my Idle Consumption wud be arnd ~ 160W = 40% Load on CX400

Usual Load Power Consumtion (While gaming on my 8800GT XXX) = 220W = 55% Load on CX400

Load power consumtion (w/ 8800GT XXX) ~ Max 255W = 64% Load on CX400

Load power consumtion (w/ 4870 1GB OCed) ~ Max 300W = 75% Load on CX400 (in future maybe)



So , Becoz my favourable usage stays between 40% Loading and 80% loading on CX400, Shud i GO for it?

Pleasse correct me if any of my methodology is incorrect.

PS: Im very limited on my budget, Will purchase only what is required for me, Not more. Please do mention if 75% Loading can have adverse effects on a CORSAIR (though it has a 3 Year Warranty to back it up)

(SuperFuture: i7 Core 940 with 4870 1GB at Full Load doesnt cross 342W @ high temps:

bit-tech.net | Review - HIS ATI Radeon HD 4870 1GB IceQ4+ Turbo

= 342W = 85% Load for CX400 = Still > 82% efficient)
 
CX400 is perfectly safe for your needs.

Though I would not like to run anything above 4870+ a heavily OC dual core (around 4 Ghz) or any quadcore with thermal envelope of 125W on this PSU for prolong period. Not adding anymore HDs and fans will also help :)

PS: I think you have got the efficiency thing wrong. But never mind :-)
 
morgoth said:
PS: I think you have got the efficiency thing wrong. But never mind :-)
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Which part is not right? If i'm not mistaken, he's saying as long as he loads his PSU within the 50~80% range, he should get optimal efficiency - which is true :)

The only bit sato should note, is that the Power consumption figures in the TechReport article are at the wall socket which includes the PSU conversion losses. Internally from the PSU side, the consumption will be lower (say 0.85 times the wall socket power if you will).
 
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TY for the erly morning quick response guys! repped! :hap2: bye bye CM 600 :)

..

Crazy_Eddy said:
Which part is not right? If i'm not mistaken, he's saying as long as he loads his PSU within the 50~80% range, he should get optimal efficiency - which is true :)

The only bit sato should note, is that the Power consumption figures in the TechReport article are at the wall socket which includes the PSU conversion losses. Internally from the PSU side, the consumption will be lower (say 0.85 times the wall socket power if you will).
Click to expand...

Ok that means that config of Qxtreme n 48701GB is on safer or riskier side now? (as compared to my previous calculation for the same i.e. 300W)
 
This doesn't have any safety margin built in. I would not load a PSU above 60% of full rated load if calculating from a web calc.

That said, the CX400 is supposed to be a pretty good supply, and it should be able to 'take it'. The Tagan is a little more dubious, I'd rather a HX520 or EA500, both Seasonic units and a lot more durable/reliable than the Tagans. That ensures you're bombproof after your upgrade, instead of wondering.
 
sato1986 said:
Ok that means that config of Qxtreme n 48701GB is on safer or riskier side now? (as compared to my previous calculation for the same i.e. 300W)
Click to expand...

On the safer side.

The power consumed at the wall socket will be = the amount consumed by your hardware + PSU conversion losses.

If a PSU is 80% efficient, that means your PC hardware is actually consuming about 80% of the power being reported at your wall socket. But lets say 85% to be on the safe side in this case.

So a rig reporting 300W at the wall socket (x 0.85) = 255W at the PSU output side.

I guess loading a PSU upto 75% is ok, since most of these measurements are usually peak loads.
 
knoughtyd said:
Wanted to know whether CX400 can support HD4850 or Vx450 is the one to go for??
Click to expand...

maxme said:
^^ me, too.
Can any one answer?
Click to expand...

Arre :P

Dint u guys read the 1st post n the approval to it by tech-gods?

CX400 can handle a QX9650 + 4870-1GB for a 24x7 Gaming PC. Yes, its of the league of VX450 at a much cheaper price.
 
I think Tagan 500 is a better vfm than CX400, obviously vx460 is better than both. cx 400 would cost around 3.1k and rahul was selling tagan around 3.2k I think. And tagan is by no means an inferior company as far as power supply is concerned.
 
^Corsair rely on better OEMs - Seasonic and Channel Well Technology (CWT) which IMO is a notch better than the Tagan OEM - Topower.
 
CX400 will be good, but since you are a gamer invest in a high power PSU, VX550 etc. U wont use 8800gt for 5 years.

Which one is VX460? :P

bigbyte said:
I think Tagan 500 is a better vfm than CX400, obviously vx460 is better than both. cx 400 would cost around 3.1k and rahul was selling tagan around 3.2k I think. And tagan is by no means an inferior company as far as power supply is concerned.
Click to expand...
 
I am in same dilemma. Only I have a smaller system. E4600, 2 hard disks, an 8500GT card (which I plan to upgrade to HD4850) and two optical drives. Post by Rockfella implies that power consumption by newer or better graphic cards and other components will always be more. Is that accurate. If not, will the corsair cx400 be good for my system and how much will it cost?
 
baccilus said:
I am in same dilemma. Only I have a smaller system. E4600, 2 hard disks, an 8500GT card (which I plan to upgrade to HD4850) and two optical drives. Post by Rockfella implies that power consumption by newer or better graphic cards and other components will always be more. Is that accurate. If not, will the corsair cx400 be good for my system and how much will it cost?
Click to expand...

For the current system + HD 4850 CX 400 will be enough.
But the minimum recommended PSU mentioned by most mid end ~highend Gpu manufacturers are 450w.

get a RP 460w @ 3.6k with 5 year warranty. it should sit right between budget of cx 400 and vx 450
 
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