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Author Topic: Problem with memory detection (4GB ram not all detected)  (Read 4916 times)

khashayar

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Problem with memory detection (4GB ram not all detected)
« on: October 13, 2013, 09:03:28 am »

in x86 architecture 4GB ram not all detected insted of 3.2GB ram is detcted
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overthere

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Re: Problem with memory detection (4GB ram not all detected)
« Reply #1 on: October 13, 2013, 11:42:19 am »

This is common and normal to my understanding, the limits include other devices so a 4 gig showing 3.2=800 meg..vid maybe or other system device.
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Everything Is Relative

khashayar

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Re: Problem with memory detection (4GB ram not all detected)
« Reply #2 on: October 13, 2013, 11:59:19 am »

This is common and normal to my understanding, the limits include other devices so a 4 gig showing 3.2=800 meg..vid maybe or other system device.
thanks for answer.
when my os ubuntu(when update) is dectect all (4GB) in claculate linux by command cl-kernel -m and change Processor type and features --> High Memory Support (4GB)  --> 64GB my system dettect all (4GB).
I think change in PAE for dectect 4 GB ram larger but i dont know
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nightflier

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Re: Problem with memory detection (4GB ram not all detected)
« Reply #3 on: October 13, 2013, 04:09:46 pm »

A 32 bit OS can normally only address 3.2 G of RAM. With PAE enabled you can use more, but the VL kernel is not configured that way. PAE adds extra overhead that can have a negative impact on performance.
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khashayar

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Re: Problem with memory detection (4GB ram not all detected)
« Reply #4 on: October 14, 2013, 02:19:05 am »

A 32 bit OS can normally only address 3.2 G of RAM. With PAE enabled you can use more, but the VL kernel is not configured that way. PAE adds extra overhead that can have a negative impact on performance.
thanks for answer
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hata_ph

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Re: Problem with memory detection (4GB ram not all detected)
« Reply #5 on: October 15, 2013, 05:43:13 pm »

if you are having more than 4GB RAM and your processor is 64bit enabled...try the 64bit version of VL
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