So I was finally able to do a test. With only 2 4GB sticks in, it took 9 seconds from pushing the button to chime. With all 8 DIMMs full, it took 22 seconds. Quite a noticeable difference if you ask me. After the chime, everything was the same.
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How long does your MP take to boot?
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Sorry, but this made me laugh. Made me think of someone in a huge hurry to indulge in "alternative recreational activities."
Sorry, but this made me laugh. Made me think of someone in a huge hurry to indulge in "alternative recreational activities."
I need less of one bong and more of the other.
Exactly 17 seconds from the time the screen comes on to the desktop, from a restart. I have posted a short movie showing my machine restarting. It's a Mac Pro 2.93GHz Quad Core with 12GB of RAM currently, and an OWC 120GB SSD as boot disk. Here is the movie:
http://www.wardcurry.com/startup.mp4
http://www.wardcurry.com/startup.mp4
I have just removed one of my 4GB sticks on my Mac Pro Quad, and my machine is noticeably faster with only 12GB of RAM vs. 16GB. My Geekbench score improved 112 points running 12GB of RAM over 16GB. I currently have the highest Geekbench score for a single processor 2.93GHz Mac Pro!
If you're curious, by Geekbench score is 10434 with 12GB of RAM, 2.93GHz Quad-Core Nehalem Mac Pro.
I timed mine from the moment the screen lighted up and turned grey, before the Apple appeared on the screen. Before the chime, the Mac does a automatic RAM check so it can take longer depending on how much RAM you have in your machine. It's always been this way. This RAM check is built into the Mac ROMs.
my question: is it the total amount of RAM, or the number of RAM chips? (1x8GB vs. 4x2GB)
I have 4x2GB and would seriously consider consolidating to 1x8GB if this were the case
but I'd like to know before doing so.
my question: is it the total amount of RAM, or the number of RAM chips? (1x8GB vs. 4x2GB)
I have 4x2GB and would seriously consider consolidating to 1x8GB if this were the case
It's the total amount of RAM...all RAM blocks have to be checked on startup by the system and pass in order to boot. It performs this check on startup. The more RAM you have installed, the longer it takes this test to complete. On old PowerMac 9500 machines running 1.5GB of RAM (all 8 slots full and maxed out), it could take over one minute to do the RAM test on startup.
Excellent info!
That explains why my 15" 8GB MBP takes 5+ sec longer to boot than my 13" 4GB MBP. I spent a little bit of time redoing the install on the 8GB machine, all to no avail.
. FWIW, the 13" 2010 MBP takes ~16 sec to completely boot. cheers
JohnG
ya, well that's nothing.
This little beast chimes immediately after the power switch is turned on!
/ topper
This little beast chimes immediately after the power switch is turned on!
/ topper
I don't bother timing it.
I have 32GB of RAM and 3 WD Caviar Blacks, so even with the Intel SSD as the boot drive it takes over a minute to get to the login screen.
I have 32GB of RAM and 3 WD Caviar Blacks, so even with the Intel SSD as the boot drive it takes over a minute to get to the login screen.