[SOLVED] Why is my CPU under preforming?

[JamesR04]

I recently got a new motherboard that has an 8 pin cpu power connector. My PSU only has a 4 pin power connector so I just plugged it into the 8 pin connector. I don't know if this is the cause, but now my CPU temperatures are much higher than before and it is being utilized much more than it used to. Should I lower the voltages because of the different cpu connectors or is it a different problem?

I have already re applied thermal paste and updated the drivers.

MSI zh77a-g43
i7 3770
Radeon RX 570

 

[reaper12474]

You can't just plug in a 4 pin into an 8 pin. Each pin carries a different voltage for powering diff things on the board. I'm surprised it even turned on. I would stop using it you may do damage to your equipment.

 

[reaper12474]

I would suggest upgrading your power supply to atleast an 80+ bronze certified probably a 500 watt or more.

 

[CountMike]

You can't just plug in a 4 pin into an 8 pin. Each pin carries a different voltage for powering diff things on the board. I'm surprised it even turned on. I would stop using it you may do damage to your equipment.

Not true, there is only one voltage involved 12v 4/8 wires and contacts with +12vdc and 4/8 ground contacts wires. They are multiplied so PSU can deliver more power to MB without making wires and contacts too big.
In some cases itcan work with only half of the lines connected but VRM will compensate for lack of power by raising voltage and that means more heat.

 

[Darep]

I recently got a new motherboard that has an 8 pin cpu power connector. My PSU only has a 4 pin power connector so I just plugged it into the 8 pin connector. I don't know if this is the cause, but now my CPU temperatures are much higher than before and it is being utilized much more than it used to. Should I lower the voltages because of the different cpu connectors or is it a different problem?

I have already re applied thermal paste and updated the drivers.

MSI zh77a-g43
i7 3770
Radeon RX 570

If your worried use a molex to 8 pin adapter

 

[Gam3r01]

If your worried use a molex to 8 pin adapter

No.
Never do this.
Ever.
Period.

 

[Darep]

No.
Never do this.
Ever.
Period.

You should read up on this they are available

 

[Gam3r01]

You should read up on this they are available

Just because something exists does not make it a good idea.
We have countless examples of molex adapters failing and damaging systems:
https://forums.tomshardware.com/threads/how-much-damage-could-psu-short-cause.3506419/

 

[Darep]

You can just use the 4pin, or buy other 4pin adapter for 2X4pin. If you use only one 4pin, you may have problem oc the i5, because the 4pin can't provide enough power for ocing.
Here is more info for the cables http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

Must have changed your mind

 

[JamesR04]

I would suggest upgrading your power supply to atleast an 80+ bronze certified probably a 500 watt or more.

Would you suggest using a 4 to 8 pin adapter?

 

[reaper12474]

Even with an adapter you would still run into the same problem. Count Mike was right and I knew what they said, but plugging in a 4 pin to an 8 is easy to potentially plug in to the wrong pins. Your original problem is you psu cannot supply enough power through a 4 pin. That's why I said you should by a new psu. You can get one new for $45 to $70. or if you want you can try ebay and get used.

 

[DSzymborski]

You should read up on this they are available

You should read up on not giving people advice that can damage their systems. Unless you intend to foot the bill for them, of course.

 

[DSzymborski]

Follow CountMike's advice. When it comes to PCs, shortcuts frequently lead to short lives.

 

[CountMike]

Follow CountMike's advice. When it comes to PCs, shortcuts frequently lead to short lives.

Also fast sparks and smoke signals.