help me check Watts usage

[come on man]

hey,can someone tell me how can I check how much is my total Watts usage in my PC?It's so old pc and I don't know anything about it..and I'm planning to put another HDD,but I want to calculate if my PSU can handle it.It's 420W PSU and I want to add additional cooler btw,so I don't know how to check if my current PSU is enough.

[Not-Miepje]

If you know what PC it is, then you can just google the specs

 

[whoisit1118]

Although I am not sure of your wattage, an HDD and a new CPU cooler shouldn't pose much of a problem if your computer works well right now.

[come on man]

13 minutes ago, Not-Miepje said:

If you know what PC it is, then you can just google the specs

 

bro this pc is older than 100 years and it has random parts.there is no way to google it

[come on man]

12 minutes ago, whoisit1118 said:

Although I am not sure of your wattage, an HDD and a new CPU cooler shouldn't pose much of a problem if your computer works well right now.

my PSU is 420W,maybe it's enough for that stuff

[Cyberspirit]

10 minutes ago, come on man said:

my PSU is 420W,maybe it's enough for that stuff

For a really old PC it will be fine but since the PC is old I'm assuming so is the PSU. You might want to get a new one if it's just a cheap PSU.

[LogicalDrm]

5 hours ago, come on man said:

bro this pc is older than 100 years and it has random parts.there is no way to google it

 

What OS its running? You can install software like Speccy to see what CPU and GPU it has. Those are the most powerhungry pieces you can have.

 

5 hours ago, come on man said:

my PSU is 420W,maybe it's enough for that stuff

 

Cooler aka fan uses maybe 3-6W depending on fan. Peformance HDD like WD Black uses max 11W. Pretty sure you are fine with adding those. Now, changing either CPU or GPU would be whole different matter.

[Stefan Payne]

6 hours ago, come on man said:

my PSU is 420W,maybe it's enough for that stuff

What 420W PSU? 
Maker + Model pls.

Because I don't remember a decent quality PSU in that Range in the last couple of years.

[Guest]

9 hours ago, come on man said:

hey,can someone tell me how can I check how much is my total Watts usage in my PC?It's so old pc and I don't know anything about it..and I'm planning to put another HDD,but I want to calculate if my PSU can handle it.It's 420W PSU and I want to add additional cooler btw,so I don't know how to check if my current PSU is enough.

Here you go:

 

http://www.p3international.com/products/p4400.html

 

[zornzilla]

On 5/2/2018 at 8:43 AM, come on man said:

hey,can someone tell me how can I check how much is my total Watts usage in my PC?It's so old pc and I don't know anything about it..and I'm planning to put another HDD,but I want to calculate if my PSU can handle it.It's 420W PSU and I want to add additional cooler btw,so I don't know how to check if my current PSU is enough.

find the parts under system information and plug it into pcpartpicker website