slow and laggy workstation

[Abdalla11]

Hello everyone,

I own a Z820 workstation and i have a very weird problem about it.

My problem is that whenever the case is in standing position (vertically), the bootup and performance of the pc overall is hindred quite a bit and very laggy ( very slow).

On the contrary when i lay it down on the floor (horizontally)  and boot it, it works perfectly fine with outstanding performance.

My specs are: 

1) dual Xeon CPU

2) RAM: 112 GB

3) GPU: Nvidia Quadro K6000

4) storage: 1.5Tb SSD Crucial MX500

I Scanned my PC multiple times with windows defender (FULL SCAN) and with multiple 3rd party softwares and i dont have any kind of malware, trojan, spyware, etc...

As a final resolution..., i took apart all the components cleaned them out properly and i even reapplied thermal paste to the CPUs.

Apparently didnt make a difference except in the sound of the PC fans being extra quiet.

Any ideas or thoughts that might benefit me on this issue? 

[DGroves]

if what you describe is true that changing the physical orientation changes the Boot/OS responsives i would check ALL the fan speeds and the main air cooling shroud connector as a fan(s) may not be spinning properly and needs replacement