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Windows 7: windows 7 memory limits? speed and capacity?

17 Aug 2012   #1

Windows 7 Professional X64
 
 
windows 7 memory limits? speed and capacity?

hey everyone.. im curious if anyone has the numbers for windows 7 memory limits, im using 64 bit ultimate, and i know capacity its capable of some number ive never met a motherboard that could even handle.. but, what about the speed/frequency of the memory? i hear theres a limit somewhere, and faster RAM gets throttled down to match the OS.. is this true? if so, whats the limit?

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18 Aug 2012   #2

Windows 7 Pro. 64/SP-1
 
 

Memory speed is is controlled by the bios, the ram, cpu, motherboard you have installed before it ever gets to the operating system. I know of no speed limit for ram in Windows 7.
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18 Aug 2012   #3

Windows 7 Professional X64
 
 

i heard windows itself had a limit, which is less than the limits of the newer motherboards
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18 Aug 2012   #4

Windows 7 Pro. 64/SP-1
 
 

Okay where did you hear that? Windows 7 Pro has a amount limit of 192 gig but no speed is mentioned any place I have looked.
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18 Aug 2012   #5

Windows 7 Professional X64
 
 

its third party information, which is why im looking here for a confirmation and proof that there is such a limit, or proof that there isnt
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10 Nov 2013   #6

Windows Home Premium 64bit
 
 

1332Mhz
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10 Nov 2013   #7

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)
 
 

So far as I'm aware, there are no speed restrictions on modern Windows memory - unlike the older DOS-based Windows 9x series, and possibly Windows NT.
Modern RAM has speeds well exceeding 1332MHz - and even Windows XP will run happily on higher speeds than that.
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10 Nov 2013   #8

Windows 7 Home Premium 32 bit
 
 

The OS has no idea what RAM speed is and couldn't care less. The very idea is alien to any OS. Speed limits are imposed by your hardware, not the OS.
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10 Nov 2013   #9

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)
 
 

Quote   Quote: Originally Posted by LMiller7 View Post
The OS has no idea what RAM speed is and couldn't care less. The very idea is alien to any OS. Speed limits are imposed by your hardware, not the OS.
Not quite true, I'm afraid - DOS was very aware of RAM speed, and had issues with anything that exceeded its parameters.
More recent Windows versions have been less dependent on the hardware.
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10 Nov 2013   #10

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)
 
 

Quote   Quote: Originally Posted by LMiller7 View Post
The OS has no idea what RAM speed is and couldn't care less. The very idea is alien to any OS. Speed limits are imposed by your hardware, not the OS.
Not quite true, I'm afraid.
Win9x and DOS were very dependent on RAM speed - but later incarnations are very much more independent of the hardware.
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 windows 7 memory limits? speed and capacity?





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