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Old 10-27-2013, 09:54 AM   #1
FredJones
Member
 
Registered: Mar 2008
Distribution: ArchLinux 64 bit (with Openbox and fbpanel)
Posts: 108

Rep: Reputation: 23
Angry No DIMM Module Detected on Channel A


I recently posted this data:

Code:
[fred@arch ~]$ sudo dmidecode -t 16
# dmidecode 2.12
SMBIOS 2.6 present.

Handle 0x0028, DMI type 16, 15 bytes
Physical Memory Array
	Location: System Board Or Motherboard
	Use: System Memory
	Error Correction Type: None
	Maximum Capacity: 16 GB
	Error Information Handle: 0x0029
	Number Of Devices: 2

[fred@arch ~]$ sudo dmidecode -t 17
# dmidecode 2.12
SMBIOS 2.6 present.

Handle 0x002B, DMI type 17, 28 bytes
Memory Device
	Array Handle: 0x0028
	Error Information Handle: 0x002C
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 2048 MB
	Form Factor: DIMM
	Set: None
	Locator: CHANNEL A
	Bank Locator: CHANNEL A-DIMM 0
	Type: DDR3
	Type Detail: Synchronous
	Speed: 1333 MHz
	Manufacturer: Undefined       
	Serial Number: 00087874  
	Asset Tag: A1_AssetTagNum0
	Part Number: JM1333KLU-2G      
	Rank: 2

Handle 0x002E, DMI type 17, 28 bytes
Memory Device
	Array Handle: 0x0028
	Error Information Handle: 0x002F
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 2048 MB
	Form Factor: DIMM
	Set: None
	Locator: CHANNEL B
	Bank Locator: CHANNEL B-DIMM 0
	Type: DDR3
	Type Detail: Synchronous
	Speed: 1333 MHz
	Manufacturer: Undefined       
	Serial Number: 0008AF96  
	Asset Tag: A1_AssetTagNum1
	Part Number: JM1333KLU-2G      
	Rank: 2

[fred@arch ~]$ sudo dmidecode -t bios
# dmidecode 2.12
SMBIOS 2.6 present.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
	Vendor: Intel Corp.
	Version: TCIBX10H.86A.0037.2010.0614.1712
	Release Date: 06/14/2010
	Address: 0xF0000
	Runtime Size: 64 kB
	ROM Size: 1024 kB
	Characteristics:
		PCI is supported
		BIOS is upgradeable
		BIOS shadowing is allowed
		Boot from CD is supported
		Selectable boot is supported
		BIOS ROM is socketed
		EDD is supported
		5.25"/1.2 MB floppy services are supported (int 13h)
		3.5"/720 kB floppy services are supported (int 13h)
		3.5"/2.88 MB floppy services are supported (int 13h)
		Print screen service is supported (int 5h)
		8042 keyboard services are supported (int 9h)
		Serial services are supported (int 14h)
		Printer services are supported (int 17h)
		ACPI is supported
		USB legacy is supported
		BIOS boot specification is supported
		Targeted content distribution is supported

Handle 0x0027, DMI type 13, 22 bytes
BIOS Language Information
	Language Description Format: Long
	Installable Languages: 1
		en|US|iso8859-1
	Currently Installed Language: en|US|iso8859-1

[fred@arch ~]$ sudo dmidecode -t system
# dmidecode 2.12
SMBIOS 2.6 present.

Handle 0x0026, DMI type 12, 5 bytes
System Configuration Options
	Option 1: To Be Filled By O.E.M.

Handle 0x0031, DMI type 32, 20 bytes
System Boot Information
	Status: No errors detected

Handle 0x0001, DMI type 1, 27 bytes
System Information
	Manufacturer:                                  
	Product Name:                                  
	Version:                                  
	Serial Number:                                  
	UUID: FA8443A7-7ABC-DF11-8211-001A9239FA9B
	Wake-up Type: Power Switch
	SKU Number: Not Specified
	Family: Not Specified
in another post along with:

Code:
sudo sudo dmidecode -t 2
# dmidecode 2.12
SMBIOS 2.6 present.

Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
	Manufacturer: Intel Corporation
	Product Name: DH55PJ
	Version: AAE93812-302
	Serial Number: BTPJ037001W3
	Asset Tag: To be filled by O.E.M.
	Features:
		Board is a hosting board
		Board is replaceable
	Location In Chassis: To be filled by O.E.M.
	Chassis Handle: 0x0003
	Type: Motherboard
	Contained Object Handles: 0
and this link to intel.com indicates "Support for up to 8 GB of system memory".

As a result of the excellent advise I got there, I purchased two new Kingston 240 pin DDR3 SDRAM DIMM 1333MHz 4 GB modules and attempted to install them. Then I saw this however:

Code:
sudo dmidecode -t 17
# dmidecode 2.12
SMBIOS 2.6 present.

Handle 0x002B, DMI type 17, 28 bytes
Memory Device
	Array Handle: 0x0028
	Error Information Handle: 0x002C
	Total Width: 64 bits
	Data Width: 64 bits
	Size: No Module Installed
	Form Factor: DIMM
	Set: None
	Locator: CHANNEL A
	Bank Locator: CHANNEL A-DIMM 0
	Type: Unknown
	Type Detail: Synchronous
	Speed: Unknown
	Manufacturer: A1_Manufacturer0
	Serial Number: A1_SerNum0
	Asset Tag: A1_AssetTagNum0
	Part Number: Array1_PartNumber0
	Rank: Unknown

Handle 0x002E, DMI type 17, 28 bytes
Memory Device
	Array Handle: 0x0028
	Error Information Handle: 0x002F
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 4096 MB
	Form Factor: DIMM
	Set: None
	Locator: CHANNEL B
	Bank Locator: CHANNEL B-DIMM 0
	Type: DDR3
	Type Detail: Synchronous
	Speed: 1333 MHz
	Manufacturer: Kingston        
	Serial Number: 650C99EF  
	Asset Tag: A1_AssetTagNum1
	Part Number: 9905403-438.A00LF 
	Rank: 2
which is depressing--my Channel A is empty? OK, I'm not quite as stupid as I look--I tried to debug. I switched the positions of the new 4G modules, but got the same result. Then I put a 2G in the A channel (and left the new 4G in B) and got the same result. Then I put back the 2Gs in both A and B and still Channel A is empty. This is what I had before--a 2G in A and B and it worked. Now A is not detecting the module.

So either I am really stupid and not installing the module in A correctly, even though I think I am doing the same thing as B or perhaps I broke my Channel A.

Any suggestions as to what to do now?
 
Old 10-30-2013, 06:34 AM   #2
aus9
Guru
 
Registered: Oct 2003
Posts: 5,060

Rep: Reputation: Disabled
Hi

since you are posting I assume you have access to another computer or a distro that works with 2G?

Personally I would put one stick only into slot A ---start with your existing 2 g sticks
set your bios to non-fast
---normally this means it does a full check of RAM

If the first stick is not recognised you will get 0 ram right?
then try the other 2 g stick

############
look closely at your bios settings.
some setting I forget the name, allows you to have a matched pair
--if unmatched this setting may well force you to have only double A
############
then try a 4G only then the other 4 G

2) In case it helps can you link to your motherboard pls

3) how many slots does the mobo have?

eg google shows
http://forum.crucial.com/t5/Standard...339/td-p/23975

4) it is also possible you may need to reset your bios
one way is to remove the battery
wait at least 30 seconds
next short the battery terminals with something metallic but not touching other bits.
----naturally turn off the computer leave the lead inserted
---touch the psu fan box with your hand if you have no anti-static strap


########### but you being able to read your motherboard manual is probably the safest tip

Last edited by aus9; 10-30-2013 at 06:45 AM.
 
  


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