Acer Aspire X3812 - Windows Media Center freezes!

Hi all,
this is my first post in this forum but mainly in English, be gentle

I have bought an Acer Aspire X3812 (Processore Q8300 Intel Core 2 Quad, 6 GB RAM, Nvidia G210 512MB, Win7 Home Premium 64bit) in order to substitute my old Acer Aspire Idea 500.

Unfortunately the tuner card and WiFi were not included, there were optional! And then I have bought one PCI-E card Hauppauge WinTV 2200 and a USB key Cisco WiFi.

I have set-up, configured and tuned the TV under Windows Media Center (WMC) and until here all was ok.

The problem starts when I see the TV or when I play a record from TV or a video DVX. After 10 - 15 minutes I am using WMC I begin to hear some "jumps" in the audio. The audio of the TV program or of the video disappear for about 0.2 - 0.4 seconds every 3 seconds. It is very annoying!
And the situation is always worst... As time goes on, it gets worse! The "jumps" are always more frequent and the also video begins to "jump" (small freeze of about 0.2 - 0.4 seconds).
If I begin to strees the situation going forward and rewind the video or TV (forward and back, forwardk and back) the situation deteriorates faster... And at the end the PC (video and audio) freezes! The only option is to hard reset the PC.

Actually, from yesterday (it was the first time) I received a BSOD. Here you are the details:

==================================================
Dump File : 081811-31964-01.dmp
Crash Time : 18/08/2011 07:31:05
Bug Check String :
Bug Check Code : 0x00000124
Parameter 1 : 00000000`00000000
Parameter 2 : fffffa80`07478028
Parameter 3 : 00000000`f2000040
Parameter 4 : 00000000`00000800
Caused By Driver : hal.dll
Caused By Address : hal.dll+12a3b
File Description :
Product Name :
Company :
File Version :
Processor : x64
Crash Address : ntoskrnl.exe+7cc40
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\081811-31964-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 292.080
==================================================

==================================================
Dump File : 081711-31668-01.dmp
Crash Time : 17/08/2011 07:39:12
Bug Check String :
Bug Check Code : 0x00000124
Parameter 1 : 00000000`00000000
Parameter 2 : fffffa80`074547f8
Parameter 3 : 00000000`00000000
Parameter 4 : 00000000`00000000
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+4b16cc
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.17640 (win7sp1_gdr.110622-1506)
Processor : x64
Crash Address : ntoskrnl.exe+4b16cc
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\081711-31668-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 262.144
==================================================

I have already updated the bios (downloaded the last version available on Acer web site). I have also updated Nvidia G120 drivers but there is no changes.

I have no idea about the causes!

Any help would be appreciated.

Best regards

Hi all,

I have just found this info but it is from Sep/2009. Is this still valid??

"
> Go to Run and type in msconfig
> go to the area were it says Boot
> Click on the operating system
> Click on advanced options
> Change your memeory to read 4095. It will default to 4096.
> This prevent Win 64 rom load anymore than 3 meg of ram.
> There is a bug in Media Center.
> It will not run with more that 3 meg of ram.
> It work great.
>
> Hope it works
"