[coreboot] Windows only seeing 2GB of 4G (Seabios

[Zoran Stojsavljevic]

Hello Naveed,

For you to read: https://en.wikipedia.org/wiki/Physical_Address_Extension

Important: With PAE, IA-32 <https://en.wikipedia.org/wiki/IA-32> architecture
is augmented with additional address lines used to select the additional
memory, so physical address size increases from 32 bits to 36 bits.

Then, after reading, this can/will help you:
https://wj32.org/wp/2011/02/23/pae-patch-updated-for-windows-7-sp1/

Zoran


On Tue, Jun 7, 2016 at 6:23 AM, Naveed Ghori <naveed.ghori at dti.com.au>
wrote:

> Hi all,
>
>
>
> I am booting a 32 bit Win 7 image (via Seabios).
>
>
>
> Windows is detecting only 1.92GB (even though there is 8GB of memory
> available.
>
> Being a 32 bit OS I would have expected it to see at least 4GB.
>
>
>
> Coreboot logs shows:
>
> Available memory below 4GB: 0x7ae00000 (1966M)
>
> Available memory above 4GB: 6144M
>
>
>
> What can cause the full 4GB to not be seen. Should I install only 4GB of
> memory instead of 4GB? I have ordered some to try in any case.
>
>
>
> Best Regards,
>
> Naveed
>
> *Naveed Ghori* | Lead Firmware & Driver Engineer
>
> *DTI Group Ltd* | *Transit Security & Surveillance*
>
> 31 Affleck Road, Perth Airport, Western Australia 6105, AU
>
> P +61 8 9373 2905,151 | F +61 8 9479 1190 | naveed.ghori at dti.com.au
>
>
>
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>
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