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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

Scrolling Stutter (since upgrade)


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bobbytomorow

 
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Member Since: Apr 02, 2008
Location: Vancouver
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Mac Specs: 15.4" uMBP/2.4GHz/4GB RAM/320GB 7200RPM HD/9400m & 9600m

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So I have a MBP 5,1 and a couple of days ago I upgraded the RAM from 2GB to 4GB (this kit) and also upgraded from the stock 250GB 5400rpm to a 320GB 7200rpm (this drive).

Every thing is working out good, its faster and more responsive but for some reason it hangs momentarily when I scroll down a web page, which is often, it hangs or sticks very briefly and then resumes scrolling again. It will do it at least once every web page and sometimes 2 or 3 times. It sounds minor but its very aggravating when surfing and scrolling a lot.

I use a wireless Logitech Nano VX mouse with one of those fly wheels that spins so pages scroll according to momentum of the spin so I thought that maybe its the mouse but it also does it when I use the 2 finger scroll on the touchpad.

So it must be either the hard drive or the RAM.Any thoughts? Also is there an OS X equivalent to memtest86+ and HD Tach, so I can run some diagnostics?


Sexy.As.Heck.
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Collin Bl

 
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Member Since: Apr 07, 2009
Location: Napier NZ
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Mac Specs: 27 iMac i5, MBP 13 & iMac 20, 2TB dual TC, AppleTV, iPh4S

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HD or RAM, perhaps not - how about safari caches, cron routines, PRAM, as a non techy i would even give SMC a shot. Could even be a Network issue. Just my thoughts.
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VegasGeorge

 
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Member Since: Sep 23, 2006
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Firefox does that on my MBP. Safari scrolls smoothly. Are you using Firefox?
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bobbytomorow

 
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Member Since: Apr 02, 2008
Location: Vancouver
Posts: 6
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Mac Specs: 15.4" uMBP/2.4GHz/4GB RAM/320GB 7200RPM HD/9400m & 9600m

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I am using firefox, and I just disabled smooth scrolling and all seems well again. I just did a new install of 10.6 (obviously, new hard drive ) so I must have had it disabled before.


Cheers guys

Sexy.As.Heck.
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