Few boot ups are slow , others are just normal as they are supposed to be.

[rockz3r]

Well my PC is suddenly acting weird , on just few of the Boots , the boot is extremely slow and the case fans are Loud as hell , so after the boot happened , i checked CPU ID Monitor , and cpu temps , hdd temps , hdd utilization , ram utilization (different app) , cpu utilization all were low , but the pc was slow as hell .
I shut down and restarted it , then the next boot , was rather normal , no loud fan noises , just a regular boot , which was fast , just as it normally is around 17-20 seconds.Now , my problem is that this happens every 2-3 boots , this problem of loud fan and slow boot , i just need to restart or shut it down from mains , until i get the standard boot.

 

[rockz3r]

I just unplugged the molex of the fan making noise.
Now boots have no noise, and fast.
When doing a Cold boot it is noisy at first , but once it fully boots its silent

 

[Nick P Wilde]

The casing fans maybe cannot handle the current from the PSU and it is "overload". For the slow boot, why not refer to "Resource Monitor" at Windows 7 in task manager and see all the utilizations. If still slow, disable some program which will automatically start when the pc is booted. (E.g. Skype, Steam...)