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Windows 7: Win 7 Ult 64Bit Won't Boot when 'Memory Remap Feature' is Enabled

12 Mar 2012   #1

Windows 7 Ultimate x64
64Bit Ult won't Boot when 'Memory Remap' is Enabled to use all 4GB RAM

Hi there,

I will start off by stating my relevant PC Specs for this thread:-

Asus P5B Deluxe MoBo
Intel Dual Core E6600 @ 2.40GHz
GeForce 7900 GS 512Mb
2 x 1GB DDR2 800MHz Corsair Value RAM (original) in Yellow Slots A1 & B1

2 x 1GB DDR2 800MHz Corsair Gaming RAM (NEW) in Black Slots A2 & B2

So I have just installed 2 extra GBs of RAM to bring my total to 4GB. After a successful boot and then checking my 'System' info Windows states 4.00GB of memory is installed but only 2.94GB is usable.

Therefore I went ahead into my BIOS to enable the 'Memory Remap Feature'.

However on reboot the PC gets to the 'Starting Windows' screen and doesn't get any further. The Windows logo doesn't start to appear. It just restarts going through all the usual screens again, eventually giving two options of:-

Launch Startup Repair


Start Windows Normally.

The repair never works and Windows will never start normally again until I return to the BIOS to disable the mem remap.

Sometimes I have had a Blue Screen as per this thread:-

I reset the CMOS to Factory Default settings and tried again but did nothing. Also I have never updated the BIOS from the original version as I'm a bit scared to do so.

I can't find anyone else on the net having the same problem!


This is the first time I have ever had to ask for help on a PC Forum! Have always managed to resolve any issues myself, with friends or by researching the net.


Have read about graphics card using part of the mem (which doesn't seem right with the 7900 GS as has it's own onboard mem) and also that voltages to the RAM should be increased.

MCH Voltages

Windows 7 :: Win 7 Wont Boot With 4GB RAM

Windows 7 RC won't boot with 4gb

I have looked hear for info on voltages and clocking but didn't get anywhere. Well got an overclock at 3.60Hz but only ran in Safe Mode. Obviously this is slightly irrelevant the above but was just trying stuff out and trying to learn more.

Asus P5B-Deluxe: Overclocking and Tweaking Guide - The Tech Repository Forums

Tried clock as per this vid and work perfectly running at 2.88GHz.

e6600 and asus p5b overclocking tutorial in english stage 1 - YouTube

Although some areas in BIOS grayed out such as 'Vanderpool Technology' whatever that is. Guessing isn't grayed out on the updated BIOS.

My System SpecsSystem Spec

12 Mar 2012   #2

Win 8 Release candidate 8400

Are you seeing the 2.94 avavailable in task manager?
My System SpecsSystem Spec
13 Mar 2012   #3

Windows 7 Ultimate x64


My System SpecsSystem Spec


 Win 7 Ult 64Bit Won't Boot when 'Memory Remap Feature' is Enabled

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