Upgraded cpu, slower pc?

[jmdquayle1]

I recently replaced my cpu from a i5 6600 to a i7 7700, everything works and nothing else was changed yet there has been a very noticeable slow down in all the pcs functions. From loading applications to pulling up file locations and playing games, the cpu change seems to have downgraded the system when i was under the impression that this swap would be an upgrade. Any thoughts, i will respond asap.

 

[mdd1963]

Was this a simple power off, swap CPU, power up and hope for the best? Is this in a 100 series or 200 series board?

I'd go to device manager, looking for perhaps remnants of more than 1 cpu's device drivers (listed under 'processors' in device mngr....: then you can *try* deleting them if present...)

Is the new CPU correctly identified in the power up POST/BIOS display?

Might be easiest to attempt a full reinstall if you can afford the time, that way you are not fighting any remnants of old drivers....; you might try a simple repair install first, allowing you to save data, avoid reinstalling your applications

 

[hang-the-9]

Check temps and for a BIOS update for the motherboard. You may not have installed the heatsink properly and it's overheating.

 

[jmdquayle1]

So the heatsink is an upgraded one and I've check the temps and it seems fine, i updated the BIOS before the replacement.
Unfortunately i do not what series the motherboard is, its a Gigabyte z170 gaming k3, whichever series that is???
After posting this, i swapped my old cpu back in and the pc still runs way worse than before, about drivers, i attempted to install the intel drivers for the i7 series but it error coded and stated i do not have the requirements to install them (this is with the i7 in) so im seriously stuck.
Thanks for the help.

 

[hang-the-9]

Could be a hard drive issue, or something with Windows since going back to the old CPU did not change anything.

 

[darkatom77]

Try reinstalling the OS, it may help with getting rid of old drivers.
Reset the CMOS, maybe there are some old settings for your previous CPU.
As for your motherboard, you are using a Z170 which was designed for Skylake but it should be compatible with Kaby Lake as well, but make sure that your BIOS is updated to the latest version or you may have problems.