Forums
New posts
Articles
Product Reviews
Policies
FAQ
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Menu
Log in
Register
Install the app
Install
Forums
General Discussions
Switcher Hangout (Windows to Mac)
iMac not booting | white screen
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Randy B. Singer" data-source="post: 1882248" data-attributes="member: 190607"><p><span style="color: rgb(255, 255, 255)">What you are experiencing is generically called a "grey screen on startup" problem, even though on modern Macs the screen where it stalls often isn't grey these days.</span></p><p><span style="color: rgb(255, 255, 255)"></span></p><p><span style="color: rgb(255, 255, 255)">In my experience, a gray screen on startup is usually a sign of a hardware problem, often an external hard drive that is problematic, or failing RAM. If you have recently attached a new peripheral, detach it and see if that helps.</span></p><p><span style="color: rgb(255, 255, 255)"></span></p><p><span style="color: rgb(255, 255, 255)">Try this:</span></p><p><span style="color: rgb(255, 255, 255)">Disconnect all peripheral devices, except for the Apple keyboard and mouse. If you are using a third-party keyboard or mouse, disconnect them and reattach the Apple-supplied ones. If this resolves the issue, connect one device at a time, restarting after each one, until you've determined which device is causing the issue.</span></p><p><span style="color: rgb(255, 255, 255)"></span></p><p><span style="color: rgb(255, 255, 255)">If that doesn't fix things, try this:</span></p><p><span style="color: rgb(255, 255, 255)">Remove third-party hardware upgrades such as memory (RAM) cards. If this resolves the issue, add back one item at a time, restarting after each one, to isolate the issue.</span></p><p><span style="color: rgb(255, 255, 255)"></span></p><p><span style="color: rgb(255, 255, 255)">However, the first thing that I would try is replacing the PRAM battery, since they routinely go bad regardless of the age of your Mac, and they are inexpensive to replace:</span></p><p><span style="color: rgb(255, 255, 255)"></span></p><p><span style="color: rgb(255, 255, 255)">Apple Coin Cell 3v Lithium</span></p><p><span style="color: rgb(255, 255, 255)">Part # 922-6476</span></p><p><span style="color: rgb(255, 255, 255)"></span></p><p><span style="color: rgb(255, 255, 255)">You can find these anywhere (Target, WalMart, any drug store) as a:</span></p><p><span style="color: rgb(255, 255, 255)">CR2032</span></p><p><span style="color: rgb(255, 255, 255)">usually made by Panasonic.</span></p><p><span style="color: rgb(255, 255, 255)">I've even seen these two for a dollar at Dollar Tree stores.</span></p></blockquote><p></p>
[QUOTE="Randy B. Singer, post: 1882248, member: 190607"] [COLOR=rgb(255, 255, 255)]What you are experiencing is generically called a "grey screen on startup" problem, even though on modern Macs the screen where it stalls often isn't grey these days. In my experience, a gray screen on startup is usually a sign of a hardware problem, often an external hard drive that is problematic, or failing RAM. If you have recently attached a new peripheral, detach it and see if that helps. Try this: Disconnect all peripheral devices, except for the Apple keyboard and mouse. If you are using a third-party keyboard or mouse, disconnect them and reattach the Apple-supplied ones. If this resolves the issue, connect one device at a time, restarting after each one, until you've determined which device is causing the issue. If that doesn't fix things, try this: Remove third-party hardware upgrades such as memory (RAM) cards. If this resolves the issue, add back one item at a time, restarting after each one, to isolate the issue. However, the first thing that I would try is replacing the PRAM battery, since they routinely go bad regardless of the age of your Mac, and they are inexpensive to replace: Apple Coin Cell 3v Lithium Part # 922-6476 You can find these anywhere (Target, WalMart, any drug store) as a: CR2032 usually made by Panasonic. I've even seen these two for a dollar at Dollar Tree stores.[/COLOR] [/QUOTE]
Verification
Post reply
Forums
General Discussions
Switcher Hangout (Windows to Mac)
iMac not booting | white screen
Top