What kind of memory do I have

Question

Hello, I've been trying to figure out what kind of RAM do I have in a computer (because I'm not sure if it's DDR2 or DDR1), so that when I purchase an upgrade, i will be able to use it.
I tried:
lspci | grep -i ram
00:00.0 RAM memory: NVIDIA Corporation MCP55 Memory Controller (rev a1)
00:01.2 RAM memory: NVIDIA Corporation MCP55 Memory Controller (rev a2)
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] DRAM Controller
sudo dmidecode --type 17 :(
# dmidecode 2.12
SMBIOS 2.3 present.
Handle 0x0023, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x0022
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 512 MB
Form Factor: DIMM
Set: None
Locator: A0
Bank Locator: Bank0/1
Type: Unknown
Type Detail: None
Speed: Unknown
Manufacturer: None
Serial Number: None
Asset Tag: None
Part Number: None
Handle 0x0024, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x0022
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 512 MB
Form Factor: DIMM
Set: None
Locator: A1
Bank Locator: Bank2/3
Type: Unknown
Type Detail: None
Speed: Unknown
Manufacturer: None
Serial Number: None
Asset Tag: None
Part Number: None
Handle 0x0025, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x0022
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: A2
Bank Locator: Bank4/5
Type: Unknown
Type Detail: None
Speed: Unknown
Manufacturer: None
Serial Number: None
Asset Tag: None
Part Number: None
Handle 0x0026, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x0022
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: A3
Bank Locator: Bank6/7
Type: Unknown
Type Detail: None
Speed: Unknown
Manufacturer: None
Serial Number: None
Asset Tag: None
Part Number: None
As you can see, in the Type subsection there is no information about it.
Any links related are appreciated.
Cheers!
+: Is it true that if 1 RAM is only 400MHz, and another one in the same PC with 800MHz, both only will only use 400MHz?

Answer 1

alphaniner wrote:
You could try lshw -short -C memory , dmidecode --type memory (this one gives a bit more info than --type 17), and dmidecode --type 2 (reports mobo model).  But I wouldn't be surprised if these don't give you anything either.
You may just have to bite the bullet and crack open the case.
I can open the case, there is no problem with that (though most times it's not specified on the label)
From your commands I can't figure out what kind it is (though I know it's DDR2)
[ubunchu@quickie ~]$ lshw -short -C memory
WARNING: you should run this program as super-user.
^CI (sysfs)
[ubunchu@quickie ~]$ sudo lshw -short -C memory
H/W path Device Class Description
===================================================
/0/0 memory 128KiB BIOS
/0/3/a memory 128KiB L1 cache
/0/3/b memory 512KiB L2 cache
/0/3c memory 2GiB System Memory
/0/3c/0 memory DIMM [empty]
/0/3c/1 memory 1GiB DIMM 533 MHz (1,9 ns)
/0/3c/2 memory 512MiB DIMM 533 MHz (1,9 ns)
/0/3c/3 memory 512MiB DIMM 533 MHz (1,9 ns)
/0/4 memory RAM memory
/0/1.2 memory RAM memory
[ubunchu@quickie ~]$ sudo dmidecode --type memory
# dmidecode 2.12
SMBIOS 2.4 present.
Handle 0x0005, DMI type 5, 24 bytes
Memory Controller Information
Error Detecting Method: 64-bit ECC
Error Correcting Capabilities:
None
Supported Interleave: One-way Interleave
Current Interleave: One-way Interleave
Maximum Memory Module Size: 1024 MB
Maximum Total Memory Size: 4096 MB
Supported Speeds:
70 ns
60 ns
50 ns
Supported Memory Types:
Standard
SDRAM
Memory Module Voltage: 2.9 V
Associated Memory Slots: 4
0x0006
0x0007
0x0008
0x0009
Enabled Error Correcting Capabilities: None
Handle 0x0006, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM_B1
Bank Connections: None
Current Speed: Unknown
Type: Unknown
Installed Size: Not Installed
Enabled Size: Not Installed
Error Status: OK
Handle 0x0007, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM_B2
Bank Connections: 6 7
Current Speed: 7 ns
Type: Unknown EDO
Installed Size: 1024 MB (Double-bank Connection)
Enabled Size: 1024 MB (Double-bank Connection)
Error Status: OK
Handle 0x0008, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM_A1
Bank Connections: 0
Current Speed: 7 ns
Type: Unknown EDO
Installed Size: 512 MB (Single-bank Connection)
Enabled Size: 512 MB (Single-bank Connection)
Error Status: OK
Handle 0x0009, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM_A2
Bank Connections: 4
Current Speed: 7 ns
Type: Unknown EDO
Installed Size: 512 MB (Single-bank Connection)
Enabled Size: 512 MB (Single-bank Connection)
Error Status: OK
Handle 0x003C, DMI type 16, 15 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 4 GB
Error Information Handle: Not Provided
Number Of Devices: 4
Handle 0x003D, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x003C
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMM_B1
Bank Locator: Bank0/1
Type: Unknown
Type Detail: None
Speed: Unknown
Manufacturer: None
Serial Number: None
Asset Tag: None
Part Number: None
Handle 0x003E, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x003C
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: None
Locator: DIMM_B2
Bank Locator: Bank2/3
Type: Unknown
Type Detail: None
Speed: 533 MHz
Manufacturer: None
Serial Number: None
Asset Tag: None
Part Number: None
Handle 0x003F, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x003C
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 512 MB
Form Factor: DIMM
Set: None
Locator: DIMM_A1
Bank Locator: Bank4/5
Type: Unknown
Type Detail: None
Speed: 533 MHz
Manufacturer: None
Serial Number: None
Asset Tag: None
Part Number: None
Handle 0x0040, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x003C
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 512 MB
Form Factor: DIMM
Set: None
Locator: DIMM_A2
Bank Locator: Bank6/7
Type: Unknown
Type Detail: None
Speed: 533 MHz
Manufacturer: None
Serial Number: None
Asset Tag: None
Part Number: None
Though if I see there is no easy bypass, I shall check up on the manufacturer's info.
Thanks so far. Cheers!