BSOD Memory Management, Bad Pool Header. Then random freezing up. Tq!

#1
Acer Aspire 4740G. 2 years old. Last 1-2 weeks constant BSOD as per title, and random freezing up, forcing restart. On restart, random issues pop-up e.g. "Windows explorer is not working", "Login services not working (causes me to be logged into a new profile, all settings, icons, wallpaper gone)". The system has run the Memory Diagnostics test. Extracting from the Event Viewer, the results are as follows:

Log Name: System
Source: Microsoft-Windows-MemoryDiagnostics-Results
Date: 16/04/2012 09:09:37
Event ID: 1102
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: PC
Description:
The Windows Memory Diagnostic tested the computer's memory and detected hardware errors. To identify and repair these problems, contact the computer manufacturer
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-MemoryDiagnostics-Results" Guid="{5F92BC59-248F-4111-86A9-E393E12C6139}" />
<EventID>1102</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2012-04-16T01:09:37.712486300Z" />
<EventRecordID>346309</EventRecordID>
<Correlation />
<Execution ProcessID="1436" ThreadID="2868" />
<Channel>System</Channel>
<Computer>PC</Computer>
<Security UserID="S-1-5-18" />
</System>
<UserData>
<Results xmlns:auto-ns2="http://schemas.microsoft.com/win/2004/08/events" xmlns="http://manifests.microsoft.com/win/2005/08/windows/Reliability/Postboot/Events">
<LaunchType>Response</LaunchType>
<CompletionType>Fail</CompletionType>
<MemorySize>3958</MemorySize>
<TestType>10</TestType>
<TestDuration>510</TestDuration>
<TestCount>12</TestCount>
<NumPagesTested>1012308</NumPagesTested>
<NumPagesUnTested>1121</NumPagesUnTested>
<NumBadPages>3</NumBadPages>
<T1NumBadPages>3</T1NumBadPages>
<T2NumBadPages>3</T2NumBadPages>
<T3NumBadPages>3</T3NumBadPages>
<T4NumBadPages>3</T4NumBadPages>
<T5NumBadPages>3</T5NumBadPages>
<T6NumBadPages>3</T6NumBadPages>
<T7NumBadPages>3</T7NumBadPages>
<T8NumBadPages>3</T8NumBadPages>
<T9NumBadPages>3</T9NumBadPages>
<T10NumBadPages>3</T10NumBadPages>
<T11NumBadPages>3</T11NumBadPages>
<T12NumBadPages>3</T12NumBadPages>
<T13NumBadPages>0</T13NumBadPages>
<T14NumBadPages>0</T14NumBadPages>
<T15NumBadPages>0</T15NumBadPages>
<T16NumBadPages>0</T16NumBadPages>
</Results>
</UserData>
</Event>

tq in advance!
 


Attachments

#2
cpu-z.png
cpu-z and ram-mon output included in zip file. tq!
 


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