why has apple has locked the 64 bit kernel

i got a mac book with some student loans after my pc (hp dv2000) died. the hp ran vista and i noticed that it always ran hot. i go to a technical school so i got a free copy of windows 7 professional<32-bit>. i installed it via boot camp because a lot of programs at my school are not mac friendly. Anyway, i play lineage on the boot camp drive, with all the graphics and such turned down. the computer cores run hot (70-75 deg. F). my old hp ran hot<vista32bit>, and that is why only after 3 years, the motherboard/GPU got fried. I dont want to do this to the apple, but i love to play that game. what should i do? I paid way too much<800 bucks refurbished and with student discount> to burn that computer out, and besides, i really like it. my mac book is version 4.1 and i have snowlepoard on it. Which by the way sucks because apple has locked the 64 bit kernel. Why did they do that? Any coments/safe operating temperature suggestions welcome! thanks!!!

75℉ is no where near hot.

HOTT GPU n CORES

ok. so 75 is not hot. when i run the mac os the computer runs cool and quiet. i dont want to hurt the motherboard/gpu by making it run all the windows scripts to run the program. i just dont want to put any excess strain on the mac by making it run windows. so i guess i will be ok?

sackandcrack said:

ok. so 75 is not hot. when i run the mac os the computer runs cool and quiet. i dont want to hurt the motherboard/gpu by making it run all the windows scripts to run the program. i just dont want to put any excess strain on the mac by making it run windows. so i guess i will be ok?

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It will be fine. There are safeguards built into the CPU that will shut the machine down if it came close to overheating (which it won't, the fans are thermostatically controlled).

Oh, and the 64-bit kernel is not locked out, it's just not necessary. Read more here:

http://www.mac-forums.com/forums/os...4-bit-snow-leopard-what-64-bit-means-you.html

oh, and i ment degrees C. not F

Well 75C is a completely different matter. However, since you said that you are playing a game when you're experiencing such temperatures, that's pretty much your culprit right there. Games put a heavy strain on computing hardware and laptops aren't conducive to removing heat quickly, hence why heat builds up.

Though like cwa mentioned, there are safeguards built into the machine that will shut it down if it gets too hot. If you find that it's getting ridiculously hot, to the point where it's shutting down, on a regular basis, then you should have it checked out by Apple as it's possible that there's a hardware problem, such as a broken fan or a heatsink isn't properly installed.

75C is nothing to worry about either, under a load. My BlackBook has been used for nothing more strenuous than typing this note (but it's been on and used all day), and its at 62C.

Stop worrying about your computer. Believe it or not, Apple actually designed this thing, and thought about how to handle you playing a game or otherwise putting some significant load on it for a prolonged period. You're fine.

sackandcrack said:

oh, and i ment degrees C. not F

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75C is still not that unusual among MacBooks & MacBook Pros when playing games...or watching internet video (You-Tube).

- Nick

I have had my MBP sit at 85C & up during 4 to 8 hours sessions of Wow.

It's now over 3 yrs old and with upgrades to RAM, hard drive and SL; the thing is running better than the day I brought it home. It has yet to give me an excuse for a new one and I was use to replacing my win machines every 9-15 months during the 15 yrs prior to that.

And just to address the actual question in the thread title:

1. 64-bit kernel is not locked, just not needed for most machines at this point.
2. No real improvement in performance for most machines at this point; the opposite in fact.
3. Applications can still (and do) run 64-bit if they can. So again, no worries.