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Windows 7: Memory module size

24 Nov 2009   #1
arliedog

Windows 7
 
 
Memory module size

I have read some data that says that Windows Seven has problems with mixed sizes of memory modules. In my system I have three 2 Gig modules and one 1 Gig module. Can this cause any problems. The memory came preinstalled in my system so I assume it is of same type and manufacturer. Still trying to chase a problem with desktop heap allocation failure at boot up.


My System SpecsSystem Spec
.

24 Nov 2009   #2
zigzag3143

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by arliedog View Post
I have read some data that says that Windows Seven has problems with mixed sizes of memory modules. In my system I have three 2 Gig modules and one 1 Gig module. Can this cause any problems. The memory came preinstalled in my system so I assume it is of same type and manufacturer. Still trying to chase a problem with desktop heap allocation failure at boot up.
The size of the module shouldn't matter as long as they are exactly the same specs. If you think the heap problem is caused by memory download and run memtestx86 for several hours at least.

You can also check in event viewer (type event vwr in search) for log entries. Go to windows logs>application tab (and system)and look for errors (red in the left hand colum) relating to the problem. When found note the event ID and source codes and relay them to us

Let us know if you need help

Ken J+
My System SpecsSystem Spec
24 Nov 2009   #3
usasma
Microsoft MVP

 
 

What points to "desktop heap allocation failure" during the boot? Where does this error come from?
My System SpecsSystem Spec
.


25 Nov 2009   #4
arliedog

Windows 7
 
 
Event id 243 desktop heap allocation failure

This
Quote   Quote: Originally Posted by zigzag3143 View Post
Quote   Quote: Originally Posted by arliedog View Post
I have read some data that says that Windows Seven has problems with mixed sizes of memory modules. In my system I have three 2 Gig modules and one 1 Gig module. Can this cause any problems. The memory came preinstalled in my system so I assume it is of same typeThis and manufacturer. Still trying to chase a problem with desktop heap allocation failure at boot up.
The size of the module shouldn't matter as long as they are exactly the same specs. If you think the heap problem is caused by memory download and run memtestx86 for several hours at least.

You can also check in event viewer (type event vwr in search) for log entries. Go to windows logs>application tab (and system)and look for errors (red in the left hand colum) relating to the problem. When found note the event ID and source codes and relay them to us

Let us know if you need help

Ken J+
Here is the event log data for the desktop heap failure. This happens when there are no windows open other than the desktop which consists of 14 shortcut icons and nothing open on the task bar.
Here is the data:
Log Name: System
Source: Win32k
Date: 11/23/2009 9:03:32 PM
Event ID: 243
Task Category: None
Level: Warning
Keywords: Classic
User: N/A
Computer: dlhert-PC
Description:
A desktop heap allocation failed.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Win32k" />
<EventID Qualifiers="32768">243</EventID>
<Level>3</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2009-11-24T03:03:32.528200000Z" />
<EventRecordID>8427</EventRecordID>
<Channel>System</Channel>
<Computer>dlhert-PC</Computer>
<Security />
</System>
<EventData>
<Data>
</Data>
<Binary>000000000100000000000000F3000080000000000000000000000000000000000000000000000000</Binary>
</EventData>
</Event>
My System SpecsSystem Spec
Reply

 Memory module size




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