I purchased a 450 corsair PSU is this enough?

[cybra]

Hello, I built a computer back in January and was wondering if I should upgrade my PSU. I currently have this CORSAIR CX Series CX450 450W ATX12V 80 PLUS BRONZE Certified Active PFC Power Supply. My current system only requires 300 watts of the power based off of Pcpartpicker.com. It was also incredibly challenging to attach the PSU power cord to my board's power. If this isn't good enough, this is the PSU I was looking at replacing it with. https://www.newegg.com/Product/Product.aspx?Item=N82E16817153309&ignorebbr=1.
Another question is would this be the viable replacement if I was to upgrade my graphics card from 1050 TI to MSI 1080?

 

[zyh1987]

cx450 is a budget friendly psu, great for system with a i5 +1050ti/1060 graphics card.

the second one you show, spec wise, it will be enough even for oc i7 and 1080ti, so you will be fine.

 

[WildCard999]

There's much better PSU's for that price, I'd replace it with the EVGA G3 650W as it's a good price after MIR.
PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA - SuperNOVA G3 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($79.89 @ OutletPC)
Total: $79.89
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-04-03 15:16 EDT-0400

 

[bgunner]

The issue with the Corsair CX series is they have a tendency to fail quickly. This is due to the lower grade components that are installed in them. They also had an issue where the lock clip on the 24 pin motherboard connector was not aligned correctly causing the issue of being very difficult OR impossible to get the lock latched correctly.

I agree with Wildcard999 that there are better quality PSU's for the same price, like the one mentioned in his post. I always say that the CX series is a goot stop gap PSU till you can get a better one, but be sure to replace them as they will have a tendency to die quickly.

 

[bignastyid]

The issue with the Corsair CX series is they have a tendency to fail quickly. This is due to the lower grade components that are installed in them. They also had an issue where the lock clip on the 24 pin motherboard connector was not aligned correctly causing the issue of being very difficult OR impossible to get the lock latched correctly.

I agree with Wildcard999 that there are better quality PSU's for the same price, like the one mentioned in his post. I always say that the CX series is a goot stop gap PSU till you can get a better one, but be sure to replace them as they will have a tendency to die quickly.

This was true of the older CX units(430, 500, 600, 750 and 850w), but the newer grey and black 450, 550 and 650w units use a newer better design and are decent budget units.

That CX 450 will be fine for a 1050Ti but if you upgrade to a 1080 then you'll want to look at a bigger PSU like the EVGA G3 WildCard999 reccomended.

 

[Rexper]

but if you upgrade to a 1080 then you'll want to look at a bigger PSU like the EVGA G3

It isn’t so much the capacity of the PSU if that is what you meant, but the quality. 450 Watts is fine for a GTX 1080, but generally, if you use high quality parts you want a high quality psu.

Also the CX450 only has one 6+2 pin cable.

 

[maxalge]

but if you upgrade to a 1080 then you'll want to look at a bigger PSU like the EVGA G3

It isn’t so much the capacity of the PSU if that is what you meant, but the quality. 450 Watts is fine for a GTX 1080, but generally, if you use high quality parts you want a high quality psu.

Also the CX450 only has one 6+2 pin cable.

no you want a decent 550w for a 1080

 

[Rexper]

no you want a decent 550w for a 1080

Why? Under a gaming load a system with an overclocked 8700k + GTX 1080 [uses about 270w. The only benefit 550w has over 450w is possibly better availability of high quality units(there aren’t many high end 450w psus). An example is the Bitfenix Whisper 450 costing $10 less than the 550w Evga G3.

 

[maxalge]

no you want a decent 550w for a 1080

Why? Under a gaming load a system with an overclocked 8700k + GTX 1080 [uses about 270w. The only benefit 550w has over 450w is possibly better availability of high quality units(there aren’t many high end 450w psus). An example is the Bitfenix Whisper 450 costing $10 less than the 550w Evga G3.

an oc'ed 1080 can easily run ~225w plus by itself



the i7 8700k:

 

[Rexper]

It’s highly unlikely every component will operate at full load, or even the CPU + GPU for that matter. But I’ll give you the benefit of doubt, 225w (GPU) + 134 (CPU) + 50w (rest) = 409w. Which is still fine for that Whisper m because it guarantees 24/7 operation at full load.

 

[maxalge]

It’s highly unlikely every component will operate at full load, or even the CPU + GPU for that matter. But I’ll give you the benefit of doubt, 225w (GPU) + 134 (CPU) + 50w (rest) = 409w. Which is still fine for that Whisper m because it guarantees 24/7 operation at full load.

you would be shortening the life of a 450w psu best case scenario

its just not stout enough if you also want to be oc'ing

and its not like a decent 550w unit is much more

 

[Rexper]

you would be shortening the life of a 450w psu best case scenario

How? It would produce the same amount of heat and draw as the 550w version. Doesn’t make sense.

And as I mentioned, it guarantees 24/7 operation at full load, as do other quality power supplies. And this computer won’t even be at 450w load 24/7.

its just not stout enough if you also want to be oc'ing

Did we not just go through the math of an overclocked GPU + CPU system at full load? It is below 450w with the components at max draw which is likely never to happen. Average power consumption of the pc will be below 350w at load, and below 90w at idle.

and its not like a decent 550w unit is much more

But for what? No benefits. And that $10 could go to another component that will benefit.