How much Watt PSU do I need for the following Specifications ?

[hackettjohn]

I7 - 7700
Gigabyte GA-B250M-DS3H Motherboard
GTX 1050 Ti Graphics Card
16 GB DDR4 Hyperx Fury 2400 RAM
Circle CC819 Cabinet with 2 LED Fans

 

[jankerson]

A good quality 550W PSU would be recommended.

 

[bignastyid]

A good quality 400w(or larger) PSU would work just fine. Full load on that system will only be ~200w

 

[geofelt]

A GTX1050ti will run off of motherboard slot power, 75w max.
I5-7700 is a 65w TDP processor.

Really, you may only need 300w.
But, I recommend more, depending on what graphics card upgrade you might envision in the future.
I have no problem overprovisioning a PSU a bit. Say 20%.
It will run cooler, quieter, and more efficiently in the middle third of it's range.
A PSU will only use the wattage demanded of it, regardless of it's max capability.
Here is a chart that can help assess that:
http://www.realhardtechx.com/index_archivos/Page362.htm

Whatever you do, buy a quality psu.
Tier 1 or 2 if you can from a list such as this.
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

Seasonic is always good and seems to be on sale this time of year.
Perhaps this tier 2 SeaSonic S12II 520 Bronze 520W for $45:
https://www.newegg.com/Product/Product.aspx?Item=N82E16817151094

 

[jankerson]

A good quality 400w(or larger) PSU would work just fine. Full load on that system will only be ~200w

Yeah I know, but the problem is good ones under 500W are getting harder to find.

There are a couple, dunno if they want modular or not etc.

A Seasonic G-450 would good if he can find one.

 

[Math Geek]

but of course if price is right, then go for a bigger psu. min need is probably 400w, but as it is hard to find quality ones for decent price, a quality higher wattage one won't hurt anything at all. give you room for later upgrades as well.

 

[jankerson]

but of course if price is right, then go for a bigger psu. min need is probably 400w, but as it is hard to find quality ones for decent price, a quality higher wattage one won't hurt anything at all. give you room for later upgrades as well.

That was my main point.

Was looking for quality units around 450W.... It's getting very thin and those I did find are EXPENSIVE. (Like $100 or more for a 450W)

Much easier to find good ones in the 520W to 550W range.

 

[hackettjohn]

A GTX1050ti will run off of motherboard slot power, 75w max.
I5-7700 is a 65w TDP processor.

Really, you may only need 300w.
But, I recommend more, depending on what graphics card upgrade you might envision in the future.
I have no problem overprovisioning a PSU a bit. Say 20%.
It will run cooler, quieter, and more efficiently in the middle third of it's range.
A PSU will only use the wattage demanded of it, regardless of it's max capability.
Here is a chart that can help assess that:
http://www.realhardtechx.com/index_archivos/Page362.htm

Whatever you do, buy a quality psu.
Tier 1 or 2 if you can from a list such as this.
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

Seasonic is always good and seems to be on sale this time of year.
Perhaps this tier 2 SeaSonic S12II 520 Bronze 520W for $45:
https://www.newegg.com/Product/Product.aspx?Item=N82E16817151094

Hi Thanks,

I found 2 PSUs in Amazon with some good reviews.
How to determine their quality ? Which one could be better ?

Here are those.
Circle APFC 500 Watts PSU
https://www.amazon.in/dp/B00R07GFS2/ref=cm_sw_r_cp_apa_i_fW37zbMRM3VHR

Circle 500 Watts PSU (SMPS) https://www.amazon.in/dp/B0136Q3XU8/ref=cm_sw_r_cp_apa_i_bZ37zbYFGC6AN

 

[Math Geek]

i don't know anything about that brand but the specs appear to be pretty good.

the APFC version looks to be a decent unit. i'd have to ask one of our psu experts if they know anything about them to know for sure though.

 

[bignastyid]

Circle PSUs tend to be junk.
Neither of them can even output 400w on the 12v rail but are sold as 500w units. Not a good sign.

The CX450M may cost a bit more but is a better PSU and more than enough to power the listed specs.
https://in.pcpartpicker.com/product/FQ648d/corsair-power-supply-cp9020101na