Help with cpu power

[Jellybae002]

I am using a dell optiplex 7010 slim case for my sleeper build, the power supply going with it only has 4 pin cpu power connector, and my motherboard has 8 pin power connector, can I plug my 4 pin into my 8 pin (I can’t get a new power supply Bc it won’t work with my case)

[CommanderAlex]

If the motherboard is requiring an 8-pin EPS power connector from the power supply, then that is what you need. The current power supply you have won't work with the motherboard otherwise (and there must be a very good reason for only having a 4-pin EPS connector). 

 

You'll need a new power supply or use a different motherboard that only requires a 4-pin CPU power cable.

[LIGISTX]

58 minutes ago, Jellybae002 said:

I am using a dell optiplex 7010 slim case for my sleeper build, the power supply going with it only has 4 pin cpu power connector, and my motherboard has 8 pin power connector, can I plug my 4 pin into my 8 pin (I can’t get a new power supply Bc it won’t work with my case)

 

17 minutes ago, SpiderMan said:

If the motherboard is requiring an 8-pin EPS power connector from the power supply, then that is what you need. The current power supply you have won't work with the motherboard otherwise (and there must be a very good reason for only having a 4-pin EPS connector). 

 

You'll need a new power supply or use a different motherboard that only requires a 4-pin CPU power cable.

That isn’t true. You can run with only 4 pin power. It just depends on the current draw of the CPU you put in it. 
 

OP. What CPU? If it’s not a monster of a chip, it may be ok. Basically any consumer CPU (so not a HEDT) will run with a 4 pin as long as your not overclocking. I wouldn’t throw a 9900k/10700k/10900k/11900k or high core count AMD in with a 4 pin. But a middle ground CPU will be fine. 4 pin can do like 150 watts, most CPU’s are 125 watt parts or less. 
 

If you plan on having the CPU pinned like in a render machine, then I would be concerned for sure. But for gaming or general use on a middle ground CPU, likely ok. 

[CommanderAlex]

7 minutes ago, LIGISTX said:

That isn’t true. You can run with only 4 pin power. It just depends on the current draw of the CPU you put in it. 

Still some truth there...OP never told us the rest of his system that is going into this sleeper PC. If OP is using a lower wattage processor, then that is fine. What do you think would happen if they upgrade to a more powerful processor in the future, using the same power supply? Pretty ballsy if you ask me. 

[LIGISTX]

3 minutes ago, SpiderMan said:

Still some truth there...OP never told us the rest of his system that is going into this sleeper PC. If OP is using a lower wattage processor, then that is fine. What do you think would happen if they upgrade to a more powerful processor in the future, using the same power supply? Pretty ballsy if you ask me. 

More of the issue is most quality PSU’s will have at least 8 pin. So it being 4 pin only may suggest it’s a lower quality/older PSU, which yes, can be an issue.

 

But as we go forward in time *most* things get more efficient not less efficient. And you can still build a sleeper PC with something like a 8700 or a 3600. Just because it’s a sleeper doesn’t mean it has a 5950x or 11900k overclocked in it.

 

My 10700k @5.1 draws about 205 watts in a very non realistic stress test. For gaming, depending on the game, it’s really not much more then 130-140 watts tops. Just to put it into perspective.

 

Either way, yes. We need more info to provide better insight. 

[Jellybae002]

I am using a i3-9100f and yes I am using the stock dell optiplex powersupply 

[Jellybae002]

This is my first build also