Unlocked Bios R0162J6, Vaio VGN-AR21S - AHCI, 4GB RAM problems

[mystic.pl]

Hi Steven,

Im glad to help another users to solve they problems with flashing Vaio
Donuts went out, thanks again.


About moded bios.
I must admit that I have bit trouble to decrypt what is what in Intel's settings.
This bios looks different from BIOSes that I ever knew.

- CPU Control sub-menu is still hide so can't check VT-x ON/OFF
- I do not see SATA AHCI settings. I would like to enable AHCI for my 2x SSD Crucials.
- I also have a problem to find and use the settings for SDRAM remap possibilities.

Generally, still I have problems to upgrade my Vaio to 4GB (2x2GB) DDR2-533.
I canuse max 2GB DDR2-533 + 512MB DDR2-533
If I install 2GB+1GB or 2GB+2GB then the bios sees 3GB but windows 8.1 do bot boot.
But interestingly, both 3GB and 4GB Win XP is booting but without a screen.
I am sure that XP is booting because I can hear the sounds of windows but the screen is black.
If I try to boot Win 8.1 64-bit can only oped Bios with F2, but Windows do not boot and laptop restarts again as soon as the VAIO logo disappears from the screen.

My problem with ram on Win 8.1 Pro 64-bit looks similar to this guy @gspeed on Linux:
https://devtalk.nvidia.com/default/topic...tu-13-10-/

so i'm not sure if the problems is depend because of 3/4GB RAM or GPU NVidia GeForce Go 7600 GT 256MB, or 32bit PAE on Intel i945PM ?

Can any body help me to an my Vaio (with Windows 8.1 64-bit) began to work 4GB of RAM ?

My Config:
Vaio VGN-AR21S
- Motherboard platform: NAPA
- Core 2 Duo T7200 @2.00ghz
- GeForce Go 7600 GT (256MB)
- 2x SSD Crucial 256GB
- 2GB + 512MB DDR2-533
- ICH7M
- i945PM rev.03
- Bios R0162J6 unlocked by @Sml6397 for Intel menu


br
Robert