Work: July 2010

Friday, July 30, 2010

4GB memory issues

http://www.biosren.com/thread-56-1-5.html
Intel® Chipset 4 GB System
http://www.biosren.com/viewthread.php?tid=283&extra=page%3D2&frombbs=1

Physical address layout (Chinese)
http://www.biosren.com/viewthread.php?tid=3200&highlight=

Can the kernel reserve memory at boot time ?(zz)

http://www.eggheadcafe.com/software/aspnet/35648681/can-the-kernel-reserve-memory-at-boot-time-.aspx

Hello,
I have a bad memory (from 589MB to 605MB according to memtest86+)
I'd like to know if the kernel can reserve this portion of memory; then it
will not be used anymore ?
Is it possible under Windows 7 ?
I Found that the Linux kernel have the parameter 'memmap' for this !
Unfortunately I cannot find the same thing for Windows :(
Any ideas to solve my memory corruption problem ?

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Actually, it does have the option. Unfortunately, it is not documented.
There are calls MmMarkPhysicalMemoryAsBad and MmMarkPhysicalMemoryAsGood to
do this, which have been used for fault tolerant environments. I have never
seen any doc's that tell you how to use them, but they are in there, they
were even in the Windows XP DDK includes.
I agree with Alexander in this case the right thing to do is replace the
memory.

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With msconfig, it is possible to set the maximum use of memory, but not a
specific zone :(

Seems I have no choice to replace it !
Too bad, I solved the problem for the Linux OS (memmap=17M$589M), but not
for Windows...