If overclocking and OSX are your things, you may want to just build a HakkenTösh; BIOS, I would imagine, is a lot nicer to much about in then EFI.
You might want to check this out: http://blogs.computerworld.com/overclock_your_macpro_from_2_8ghz_to_3_24ghz_with_easy_tool
LAst gen. Nahalem changes all that. Anything on Nahalem overclocking?
Why would you even consider this? Seems pretty pointless to me.Just as the title says. Is it possible to overclock this pupy a bit via OS X?
Actually, No. The Turbo Mode only works under certain conditions, while OC'ing the processor is uniform, despite the workload (for CPU clocks).Since the chips overclock themselves during use, isn't this all moot?
Why would you even consider this? Seems pretty pointless to me.
That's like buying a Rolls Royce and then asking to install some shi#ty K&N air intake and loud rice boy muffler. Go buy a crap honda civic if that's your thing.
And likewise, go buy a PC, or build a Hackintosh if overclocking is your thing.
But wouldn't "turbo" mode interfere with overclocking? If you overclocked and then "turbo" mode kicked in wouldn't damage things? Or build up alot of heat quickly?
But wouldn't "turbo" mode interfere with overclocking? If you overclocked and then "turbo" mode kicked in wouldn't damage things? Or build up alot of heat quickly?
Why would you even consider this? Seems pretty pointless to me.
That's like buying a Rolls Royce and then asking to install some shi#ty K&N air intake and loud rice boy muffler. Go buy a crap honda civic if that's your thing.
And likewise, go buy a PC, or build a Hackintosh if overclocking is your thing.
The Mac Pro really isn't the Rolls of the computer world...
When overclocking you typically want to improve the cooling to compensate for increased temperatures that will come from running higher voltages/clocks. As long as you increase the cooling in proportion to your overclock, the turbo mode will continue to work as advertised. This is because the turbo mode takes advantage of the fact that only part of the CPU is active, therefore it can overclock that active portion while the inactive portion is effectively shut down and still keep the overall thermal output within the capabilities of the cooling solution... again, this assumes you increase the capacity of the cooling solution to match the new thermal output of your overclocked CPU.
Overclocking with the stock cooling and stock voltages would only yield modest gains before instability or excessive heat started being a problem. And as you point out, would likely limit Turbo mode as the temps would be too high for it to kick-in.
What is, then?
Assuming for fan speed you mean on the stock cooler in a boxed processor, it's not designed for OC'ing, though it seems some have done it. For a 3rd party air cooler, it can help extend the OC range to some extent, (if you can live with the noise ).So simply moving the stock fan setting rpm's up wouldn't suffice? I'm assuming your talking about some sort of liquid cooling?
So simply moving the stock fan setting rpm's up wouldn't suffice? I'm assuming your talking about some sort of liquid cooling?
Good point, as it does seem a little too small for OC'ing, even if a 3rd party application is released that specifically works for the Nehalem processors, as it does for the '06 - '08 MP's.It's possible that Apple designed the CPU cooler in the Mac Pro with some overhead, but they appear to focus on less noise (perhaps at the expense of cooling performance?). It's hard to say, but I notice that my CPU runs pretty hot at idle. I suspect that when the CPU is maxed out for extended periods (eg. a large rendering/encoding job) the fan will struggling to keep that sucker cool, especially in higher ambiant temps like you might have at home in the Northern hemisphere these days.
In my case, I went with air to improve single threaded applications in particular. More than the Turbo Mode can produce (4.11GHz & stable at any load I've thrown at it), works on all 4 cores, and only required the cooler to do it. Worth the $80USD spent IMO. But it's not for everyone, and I'm finished with what I wanted to accomplish.After having invested a lot of time and money on overclocking CPU's in previous computers with both air and water cooling. I've moved on. While it was a fun hobby, it's very time consuming, expensive, and frustrating at times (but also rewarding) trying to exact that extra performance.
Good point, as it does seem a little too small for OC'ing, even if a 3rd party application is released that specifically works for the Nehalem processors, as it does for the '06 - '08 MP's.
In my case, I went with air to improve single threaded applications in particular. More than the Turbo Mode can produce (4.11GHz & stable at any load I've thrown at it), works on all 4 cores, and only required the cooler to do it. Worth the $80USD spent IMO. But it's not for everyone, and I'm finished with what I wanted to accomplish.
....I'm just much happier having all that behind me now and gaming on a PS3 and doing my work on a Mac.
You can't beat that value.
I used my overclocked systems for gaming and I could never tell if a crash in the game was due to a faulty display driver, bug in the game, or unstable overclock. Despite running multiple instances of PRIME95 for hours, my overclocked systems just never seemed as stable but Windows display drivers are just horrible, particularly for SLI... bah... I'm just much happier having all that behind me now and gaming on a PS3 and doing my work on a Mac.
I don't game at all.Gaming on more cores then what you have in your computer, Nano?
True, only one is for the OS and the other 7 are SIMD, but you must get better physics then, well... PhysX