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Model A1297 Unibody: Early 2009, Mid 2009, Mid 2010, Early 2011 & Late 2011

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high cpu on battery puts computer to sleep

Conditions I am working under:

- I replaced the hard drive for a SSD, and only loaded windows 8.1 onto the drive (it still has the mac bios)

- I then replaced the battery, reset the smc, and pram, and calibrated the battery

The problem is that every time my cpu spikes (say if I go to render something or even make slightly heavier use of my computer, (of course this is all on battery power), it goes to sleep, and it continues doing that after I wake it up periodically.

What can I do to stop this?

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You really can't run Windows natively on the Mac's as the system is still dependent on the Mac OS services. As you have discovered you can't access the hardware settings directly within Windows. You'll need to install the correct OS-X for the system and BootCamp services then within BootCamp install Windows so you can run it concurrently.

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There's a lot of variables left undisclosed. What are the GPU requirements of the widows app you're using? What are the RAM and CPU requirements? Why are you running WIndows on a Mac. Specific details of your machine (RAM, OS, CPU, GPU)

Help us help you. The more complete the description of your problem is the more assistance we can provide, and, the sooner we can provide it..

Further this sounds like Software issues, not Hardware issues, but with out more detail can't say for certain.

If this answer is acceptable please remember to return and mark it accepted.

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Rolland Gyorfi will be eternally grateful.
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