SOLVED: Intel 520 ssd disappears in startup manager most of times - MacBook Pro 15" Unibody Late 2008 and Early 2009

Intel 520 ssd disappears in startup manager most of times

I've replaced original hard drive with Intel 520 ssd. And It works completely strange. Most of time startup manager doesn't see it, sometimes it's visible, but disappears on selection. Sometimes everything passes fine and macbook loads from new drive correctly and fast.

If I'm trying to load from original hard drive ssd is visible and seems to be fine (visible, writable, readable, passes all tests and so on).

What could be wrong with it? Thank you.

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Posted: Apr 27, 2012

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There may be a bug with your chipset and the Intel 520. This is with the Nvidia MCP79. To be sure, please give us the last three figures of your serial number.

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4 Comments:

I own late 2008 unibody macbook pro. I'll be able to give some more information later.

Apr 27, 2012 by Alex Ivanov

Meanwhile try this fix: http://www.ocztechnologyforum.com/forum/...

Apr 27, 2012 by mayer

Thanks for the link, but since this instruction is about firmware upgrade it doesn't work for my intel ssd.

Apr 27, 2012 by Alex Ivanov

it's all about your intel ssd, read it all the way

Apr 27, 2012 by mayer