Issues with sleep/wake feature after 16GB RAM upgrade in my MacBook Pro. Any thoughts?

You could try to disable the hibernate mode then delete the sleepimage file. That will make the system wake faster as once hibernat mode is disabled and the sleepimage file deleted everything stays in RAM during sleep mode. With them active RAM gets written to the HDD and the system can go into Deep Sleep which what I think it is now doing. Seems there is a problem with all newer Mac's once it enters the deep sleep state.

to see what you system is set to now open terminal and type in.

pmset -g | grep hibernatemode

If it retruns a hibernatemode 3 then it is set to go into deep sleep.

to turn that off you enter

sudo pmset -a hibernatemode 0 (that is a Zero)

Then to delete the sleep image file, which will be the size of the amount of RAM installed in the system. So your is 16GBs in size. Type in.

sudo rm /private/var/vm/sleepimage

With all the sudo commands you will be prompted for your admin password. Just enter it, it will not show on screen as you enter it, then hit the enter key.

Re-enter that command and put a 3 at the end. Then reboot. Sleepimage file should be recreated and system will be like it was.

Ive had the same issues with Crucial 16 gig upgrade on my machine.

It's Lion 10.7.5 (11G63) MacBookPro8,3

To solve the sleep issue I used this terminal command.

sudo pmset -a hibernatemode 1

If you close the clamshell you will see the sleep LED will go out eventually.

Upon opening you will see a grey screen with rice sized dots at the bottom of the screen.

This will change to your log in.

Type in your password and everything is still there.

It seems the 16g RAM needs to be powered down completely and all data swapped to drive to successfully wake.

Worth the trouble I think but I wish the Crucial Support guys would confirm this. I thought I'd broken my laptop.

Ok I forgot you need to push the power button after opening the clamshell. Sorry.

No issues with Corsair Vengeance in mine. Just saying... Crucial is usually good, but sometimes it's just finicky.

I'm open to trying different stuff. is it this?

CMSO16GX3M2A1333C9

Model CMSX16GX3M2A1600C10 it is...

Well, this is the one I bought for my mid 2012 model MBP. Your speed might be different for your model.

I upgraded my early 2011 MBP to 16 gigs with Crucial. My machine would not sleep properly, because when I tried to wake it, it would wake from its hibernate image file. This is the issue I've seen here in this list.

I tried all the suggestions I saw on these groups. Nothing helped. I contacted Crucial, who suggested that if their RAM was defective, they'd replace it per their warranty process. I needed some proof it was their RAM causing the problem.

I put the original 8 gigs RAM back in the machine (2 4 gig sticks), and it behaved normally. I then put one stick of Crucial RAM in, all by itself. The machine behaved normally. I put the other stick of Crucial RAM back in, and took the first one out. The machine would not properly sleep and wake from sleep. This proved that one stick was causing the problem, and the other was not.

Defective RAM!

I then requested and received an RMA from Crucial to send the defective RAM back. They paid shipping. I got new sticks of RAM about a week later. These new sticks of RAM work properly. No sleep issues.

I'm surprised and disappointed to say that this is not the first time I've received defective RAM from Crucial. I've purchased from them for years, and had GREAT service and received high quality products. The past couple years my experience has been different.

I'm still pretty steamed about this, as I spent a great deal of time trying to diagnose the problem and fix it. I don't really have that kind of time to waste. My expectation was that their RAM was high quality, and unlikely to be at fault.

Perhaps this is just a bad batch of RAM. I get that. I can forgive them once. But this has happened twice in the past three years. I'll look elsewhere for my next memory purchase.

Keep in mind that their customer ratings are generally very high. My experience is probably isolated.

I've since found that the Crucial 16 gig kit was defective and sent it back.

I've now installed the 16 gig kit from Corsair and everything is working as it should.

I've also swapped the internal hard drive for a Seagate 750 Gig 7200rpm SSD hybrid.

This setup really does make my 2011 MacBook Pro feel like a brand new machine.

Glad you got it resolved. Crucial used to be reliable, but they've slipped recently and moreso with memory reliability. At least their SSD are still ok, but Samsung's about to overtake them... it's just the prices are slighly higher for Samsung SSDs than Crucial ones.

This definitely helped me! Thanks so much!!!