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  ACPI Uniprocessor PC 
 
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ray Stephens May 04, 2003, 11:33pm EDT Reply - Quote - Report Abuse
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Just a quick stupid question, but under device manager Windows XP calls my computer an ACPI Uniprocessor PC. Does anyone know what this means. I have a non-proprietary system, in other words I built it myself!


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ant decto May 05, 2003, 08:26am EDT Reply - Quote - Report Abuse
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>> Re: ACPI Uniprocessor PC
Ray

The ACPI ... it think means Adanced Pehipheral Interupt Control, basically it's a setting in your BIOS which enables interupts higher than 15. These virtual interupts are to prevent as many devices having to share.

The uniprocessor just means you have a single CPU.

If you look on your processor tab our CPU should be detected correctly (unless at you o/c settings windows doesn't recognise a speed/type match) Mine says XP2800+

Regards
AD

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Wizard Prang May 05, 2003, 09:03am EDT Reply - Quote - Report Abuse
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>> Re: ACPI Uniprocessor PC
Ray, It means "it's all good" :)

Prang

Who is... oh, never mind :)
ray Stephens May 05, 2003, 06:42pm EDT Reply - Quote - Report Abuse
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>> Re: ACPI Uniprocessor PC
Ant, at 2.25GHz Windows still says it is a 2500+, but who cares what it says right? Before I updated my Bios it was a bunch of European gibberish!

Although, with my old 2200+ at 11X166 or 1.83GHz Windows said my CPU was a 2800+. Weird!

ant decto May 05, 2003, 07:13pm EDT Reply - Quote - Report Abuse
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>> Re: ACPI Uniprocessor PC
Ray,

no need to worry about what windows calls it as long as the benchmarks are ok. Overclocking sometimes screws up the naming as the FSB/multiplier settings don't match a valid option.

Ant

Regards
AD

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Tony Cooper Aug 26, 2003, 04:17pm EDT Reply - Quote - Report Abuse
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>> Re: ACPI Uniprocessor PC
ACPI stands for Advanced Configuration and Power Interface, not "Advanced Peripheral Interrupt Control", which doesn't even make the acronym ACPI does it? It makes APIC which is something completely different. And it stands for Advanced Programmable Interrupt Controller.

ACPI is a good thing to have your PC installed as. It gives you much more control over power management options plus more.

Paul Copsey Jun 22, 2008, 07:58pm EDT Reply - Quote - Report Abuse
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>> Re: ACPI Uniprocessor PC
I have a question about the uniprocessor though.. I am running a dual core processor so should it still say uniprocessor or should it be multi?

FordGT90Concept Jun 22, 2008, 09:30pm EDT Reply - Quote - Report Abuse
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Edited: Jun 22, 2008, 09:32pm EDT

 
>> Re: ACPI Uniprocessor PC
This is a difficult concept to explain...

Uniprocessor...
Uni- means one so effectively, it means "one processor." "Processor" basically refers to a socket or slot in which a device sits. So, uniprocessor means one socket or slot.


Multiprocessor...
Multi- means more than one so effectively, it means "more than one processor."


You have one processor with two cores. In some cases, that could be labeled as "multiprocessor" but because of where you are seeing this ("computer type"), it is refering more to physical slots/sockets more than anything else.

Uniprocessor = 1 package (socket/slot), infinite cores (physical/virtual)
Multiprocessor = 2+ packages, infinite cores on each


It more or less controls how Windows addresses the socket(s)/slot(s) and does not deal with actual calculations.

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