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Vista and 8 cores
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Junior Member
Join Date: Apr 2005
Location: UK
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I'm running a 2.8 Octocore Mac Pro with a Vista64 Boot Camp install. However, I'm getting rather frustrated as I think Vista is only using 4 of my 8 cores.
Task Manager only shows 4 graphs under CPU, yet I have seen other Mac Pro users with 8 - and I'll be darned if I can find any way to add more, which seems to imply there's only 4 in use. System Devices however, is showing all 8 E5462 cores as being there. Is Vista just being its usual (annoying) self, or is it actually just using 4 cores?
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
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Are you using Vista Home? Home only supports 1 CPU, so 4 cores.
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Junior Member
Join Date: Apr 2005
Location: UK
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Home Premium - restriction still applies? If so, do I need to upgrade to Ultimate?
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
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Home Basic and Home Premium (and Home N for the EUtards, if it was released) are all Vista Home and are limited to 1 CPU. Business, Enterprise, and Ultimate support 2 CPUs.
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Junior Member
Join Date: Apr 2005
Location: UK
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Nice move MS  Time to upgrade methinks
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
Status:
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Professional Poster
Join Date: Mar 2003
Location: Down by the river
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I doubt it will make any difference in performance using four or eight cores.
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Administrator  Join Date: Apr 2001
Location: San Antonio TX USA
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I have to admit that I rarely actually read through all of an OS's system requirements. I have run the Vista prep tool to see if my machine will work (it's an iMac; it had better) with Vista, and I'd have just blundered my way into using it. Not smart on my part, but it's a habit. On the other hand, my school is selling Vista Ultimate at the bookstore on our Campus Level Agreement, so the pain is very minor.
Still not convinced I should even bother with Vista though...XP does fine for my needs.
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Glenn -----OTR/L, MOT, Tx
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
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Originally Posted by ghporter 
I have to admit that I rarely actually read through all of an OS's system requirements. I have run the Vista prep tool to see if my machine will work (it's an iMac; it had better) with Vista, and I'd have just blundered my way into using it. Not smart on my part, but it's a habit. On the other hand, my school is selling Vista Ultimate at the bookstore on our Campus Level Agreement, so the pain is very minor.
Still not convinced I should even bother with Vista though...XP does fine for my needs.
Intel iMacs will run Vista fine... why you'd want to (you're not going to be playing DX10 games with those crummy mobile video cards) is the question.
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Junior Member
Join Date: Apr 2005
Location: UK
Status:
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Originally Posted by mduell
Must admit, the last time I checked the system requirements for an OS was, well, never. I assumed MS would do the decent thing and actually support the whole lot, rather than further confusing matters - after all, Apple let you have as many as you like with a single OS edition for desktops.
The most ridiculous thing is that an OEM copy of Vista Ultimate will run me £117, but an upgrade from Home Premium to Ultimate is £107. Nice maths.
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