Bluetooth prevents MacBook from sleeping: related to heat sink?

I recently purchased a used MacBook core duo with a fried hard drive. I replaced the hard drive with a drive built on another machine with Snow Leopard already installed, upgraded the Ram, and everything ran well...except that the MacBook refused to sleep. I was shutting it down at night and restarting when I needed to use it. One day I started up to the blue screen -- ran disk utility off another computer, tried a PRAM reset, etc, nothing. I took it to the Apple store and they ran a diagnostic that showed a heat sink error, but the archive and install of Snow Leopard worked and restored everything.
Since then I did some troubleshooting and think the sleep issue is related to the bluetooth -- but disabling bluetooth only helped some of the time. It seems the chip heats up and then I have the sleep issue once again. I know there are threads on Apple Discussions about removing the bluetooth chip, which I could do, but I'm concerned that all these problems might somehow be related to the heat sink. Any ideas? I don't really want a logicboard failure down the road...

IrishImmirage wrote:
Any ideas?
Shut it down instead of sleeping. That's one of the dangers of buying a used machine, especially a used Mac. Why would someone want to sell their Mac unless it was broken and they didn't get the extended warranty.
My 1st generation MacBook has a similar problem. I didn't notice it until after the 3 year warranty had expired. Maybe I should sell it

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Here are some troubleshooting ideas that I think may be more relevant:
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2. You may want to try some of the troubleshooting steps cited in the following documents:• "http://docs.info.apple.com/article.html?artnum=303234."
• "Mac OS X: Why your Mac might not sleep or stay in sleep mode."
3. Run the Apple Hardware Test (AHT) that came the affected computer. See my "Apple Hardware Test" FAQ for comprehensive advice on using the AHT in troubleshooting.
4. You cited that it reboots. However, if you are seeing the following message
that indicates a kernel panic.
If so, see my "Resolving Kernel Panics" FAQ. This FAQ includes step-by-step instructions for identifying and resolving some of the most common causes of kernel panics. The FAQ is a roadmap: start at the beginning and work systematically through the end, i.e. the "If all else fails..." section.
5. You may want to search the "MacBook Discussion" for similar reports.
6. Since I suspect your MacBook is still under warranty, you may want to contact AppleCare
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X
Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
I may receive some form of compensation, financial or otherwise, from my recommendation or link.

Problems connecting to Monitor after waking up MacBook from sleep

Hi,
I am experiencing a lot of problems connecting my macbook pro to external monitor once I put it to sleep. I have tried every options like setting up PRAM and all, but it just wont work. Sometimes the restart works and sometimes it wont. I am using a Samsung monitor. I have no idea what to do, as I keep on clicking Detect displays and it just wont do anything. Can anybody please help me as to how I can wake up my macbook from sleep and get it connected to the monitor. I have a mac keyboard and bluetooth mouse, but neither would wake the mac. I have change my bluetooth settings so that the mouse should be able to wake it up..

William Rivas wrote:
William Rivas wrote:
William Rivas wrote:
Linc Davis wrote:
Test after taking each of the following steps that you haven't already tried. Back up all data before making any changes.
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Remember networks this computer has joined
is checked.
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3. Make a note of all your settings for Wi-Fi in the Network preference pane, then delete the connection from the connection list and recreate it with the same settings. You do this by clicking the plus-sign icon below the connection list, and selecting Wi-Fi as the interface in the sheet that opens. Select Join other network from the Network Name menu, then select your network. Enter the password when prompted and save it in the keychain.
4. From the Location menu at the top of the Network preference pane, select Edit Locations. A sheet will drop down. Click the plus-sign button to create a new location. Give it any name you want. In the new location, set up the Wi-Fi service with the same settings you used before. Click Apply and test.
5. Launch the Keychain Access application. Search for and delete all AirPort network password items that refer to the network. Make a note of the password first.
6. Repair permissions on the startup volume.
7. Turn off Bluetooth and test.
8. Reset the System Management Controller.
9. Reset the PRAM.
10. Reinstall OS X.
Updating to 10.9.2 did the trick. So I thought. Does anyone have a solution?
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Hi Radium88,
You can prevent your MacBook Pro from going to sleep using the steps in this article -
OS X Mountain Lion: Prevent your computer from sleeping
http://support.apple.com/kb/PH10679
Specifically -
Choose Apple menu > System Preferences, and then click Energy Saver.
Drag the slider that controls the computer’s sleep to “Never.”
Thanks for using Apple Support Communities.
Best,
Brett L

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Many thanks in advance.

OK obviously tempted fate by posting, the bluetooth problem has returned!
While awake both the keyboard and mouse connections are rock-solid, on startup, both connect instantly it's just waking from sleep that's the issue.
I had the problem just a few minutes ago, the Mac had been asleep for about 30 minutes, I tapped the mouse and it woke up, I could even move the mouse pointer around for a few seconds and then it suddenly froze. The Connection Lost message (for the mouse not the keyboard) appeared on the screen and the bluetooth icon in the menu bar changed to the 'no connection' sign. If I flip the mouse over the little green led doesn't come on.
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10/22/13, 11:03:40 PM PD
Assertion status system-wide:
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   PreventDiskIdle                0
   ApplePushServiceTask           0
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   InteractivePushServiceTask     0
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   ExternalMedia                  1
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I have the same problem, but i cannot solve yet.
I have to wait almost 2 minutes for sleep mode when i close the screen
If i click sleep in the main menu is the same problem.
This is my log
Assertion status system-wide:
   BackgroundTask                 0
   PreventDiskIdle                0
   ApplePushServiceTask           0
   UserIsActive                   1
   PreventUserIdleDisplaySleep    0
   InteractivePushServiceTask     0
   PreventSystemSleep             0
   ExternalMedia                  0
   PreventUserIdleSystemSleep     0
   NetworkClientActive            0
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   pid 323(apsd): [0x0000000c000002ec] 00:00:12 ApplePushServiceTask named: "com.apple.apsd-connectinguser-push.apple.com"
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Model Identifier:          iMac8,1
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Bluetooth prevents MacBook from sleeping: related to heat sink?

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