Monday, 21 February 2011

2010 iMac freezing with 3 beeps after running for hours to days


2010 i5 3.6 21.5", snow leopard (10.6.8)
added 8 gb of ram stock 4 in december , shortly afterwards began have random/infrequent system freezes 3 beeps repeating until hard shutdown.
sought advice , decided reseating next step. put off frequency of these freezes increased dramatically on last few days did thorough , satisfying reseat few hours ago. ran 30 minutes afterwards before happened again.

can find zillion threads on various forums have had similar problems, i'll darned if can find 1 instance came , posted resolution.

ram consistently tests ok in test i've thrown @ it.
pointers or links.
======edits feb 12====
zapped pram after initial post . . . 6 days no beep-freeze, until 2/11.
pulled stock ram , placed 'new' ram in main slots (farthest display side).
no freeze yet, ~ 1 day.
 

basic troubleshooting, remove last thing changed when started noticing problems.
bad part takes hours days see problem may take hours days test system.

take out sticks of ram added , run system few days week.
switch out ram purchased , repeat.
 


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