Why did upgrading to 4 gigs of RAM slow start up time?

[pigpen77]

After getting a new MBP I have upgraded to 4 Gigs RAM and noticed a significant change in boot time becoming noticeably slower. Several friends have stated that this is normal but could not explain why? Is it normal and why? This is what I see now since upgrading my RAM:

1. Gray/white screen with Apple logo
2. The loading circle appears under the Apple logo
3. Two shades of Blue screen for several seconds
4. Directly to the desktop with loading times

 

[Ryox]

really? thats odd, I don't see any difference in my MBP with 2G or 4G on start up time. if anything, i think its quicker

 

[Cave Man]

Whenever you boot a Mac it runs a diagnostic routine to verify your hardware is in good working order. It takes twice as long for it to scan 4 gigs of RAM as it does 2 gigs.

 

[new-Mac-owner]

dont worry about it mine does the same thing but once started every thing runs faster so no need to worry just closes your eyes and count to 10 when this happens it well be over soon (joke)-Good luck