Windows only seeing 2GB of 4G (Seabios

[Naveed Ghori]

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 [phone] | [e-mail]

Visit our website www.dti.com.auhttp://www.dti.com.au

The information contained in this email is confidential. If you receive this email in error, please inform DTI Group Ltd via the above contact details. If you are not the intended recipient, you may not use or disclose the information contained in this email or attachments.

[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 
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 [phone] | [e-mail]
>
> Visit our website www.dti.com.au
>
> The information contained in this email is confidential. If you receive
> this email in error, please inform DTI Group Ltd via the above contact
> details. If you are not the intended recipient, you may not use or disclose
> the information contained in this email or attachments.