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Apple Computing Products:
macOS - Desktop Hardware
iMac 21.5" 3.33mhz - Memory Upgrade "Issue"
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<blockquote data-quote="flypaper" data-source="post: 1232495" data-attributes="member: 200811"><p><strong>Update on iMac 3.33mhz Memory Issue</strong></p><p></p><p>So after much dorking around:</p><p></p><p>a) In was able to get 2 of the 4 - 4gb memory cards to work - but *only* if they were in the "Front" slots (front=toward screen). Booted up with 1333mhz.</p><p></p><p>b) If I added the other 2 cards to the back pair, no dice. 5-second beeeep.</p><p></p><p>c) I put 2 of the old 2-gb cards in the back, in combination with (a) above, and guess what? It booted up just fine with a total of 12gb. Speed: 1066. (The memory and/or board dials the 1333 cards down to the speed of the slowest card).</p><p></p><p>d) I swapped the different 4gb cards around with exactly the same results.</p><p>e) It would not boot with just 1 card of memory in any slot, regardless of size.</p><p></p><p>Here's an apple link to the Beep tones:</p><p><a href="http://support.apple.com/kb/HT2538" target="_blank">iMac (Mid 2007) and later models: About startup tones</a></p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="flypaper, post: 1232495, member: 200811"] [b]Update on iMac 3.33mhz Memory Issue[/b] So after much dorking around: a) In was able to get 2 of the 4 - 4gb memory cards to work - but *only* if they were in the "Front" slots (front=toward screen). Booted up with 1333mhz. b) If I added the other 2 cards to the back pair, no dice. 5-second beeeep. c) I put 2 of the old 2-gb cards in the back, in combination with (a) above, and guess what? It booted up just fine with a total of 12gb. Speed: 1066. (The memory and/or board dials the 1333 cards down to the speed of the slowest card). d) I swapped the different 4gb cards around with exactly the same results. e) It would not boot with just 1 card of memory in any slot, regardless of size. Here's an apple link to the Beep tones: [url=http://support.apple.com/kb/HT2538]iMac (Mid 2007) and later models: About startup tones[/url] Cheers. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
iMac 21.5" 3.33mhz - Memory Upgrade "Issue"
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