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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

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Old 06-25-2018, 09:13 AM   #31
onebuck
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Moved: This thread is more suitable in <Linux - Hardware> and has been moved accordingly to help your thread/question get the exposure it deserves.
 
Old 06-25-2018, 11:21 PM   #32
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there is a linux kernel option of whether to support 4g or 64g of memory

please insure your CentOS kernel hsa the 64G set before wondering about a 4G limit

on some systems you can read this in:

/boot/config # this one, kernel options
/boot/System.map # not this one


on some kernels the config is also stored inside the kernel and can be retrieved with a utility that slips my mind

# CONFIG_NOHIGHMEM is not set
# CONFIG_HIGHMEM4G is not set
CONFIG_HIGHMEM64G=y
 
Old 06-28-2018, 04:05 PM   #33
azrielle
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Quote:
Originally Posted by -=HIGHHIGH=- View Post
when loading 8.1, device info says something like:
RAM: 8GB (3.24GB usable)
The only way WINDOWS 8.1 would report that only 3.24GB out of 8GB is available is if it was the 32bit version on your machine!!
Technically speaking, 32bit Windows is as capable of utilizing up to 64GB of the 36bit PAE addressing space as 32bit Linux is, but for Microsoft deliberately laming Win7 (and presumably all subsequent versions to keep the FICTION intact) in 2009 in order to force the gullible consumers to buy their new 64bit OS, that they had just spent mega-bucks developing. See the following links for further discussion:
https://www.raymond.cc/blog/make-win...an-4gb-memory/
https://superuser.com/questions/5227...b-of-ram#95309
https://www.makeuseof.com/tag/unlock...ows-pae-patch/
 
Old 06-28-2018, 05:42 PM   #34
-=HIGHHIGH=-
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Quote:
Originally Posted by azrielle View Post
The only way WINDOWS 8.1 would report that only 3.24GB out of 8GB is available is if it was the 32bit version on your machine!!

I appreciate that you've gone through the effort to try and help on this post but in my previous posts I've stated that:
- the system is 64bit, including the windows installation.
- the CentOS installation was also 64bit.
- Ubuntu installs were 64bit.

Windows see's closer to 3.5GB RAM, due to the onboard graphics stealing some!

As mentioned, I've tested these sticks on different slots and it appears one of the board slots is not working.
As above, appreciate your input. I really wish this was the case, it would be a much easier / cheaper fix
 
  


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