Current FSB speed

annalissa

I use pentium(R)Dual core processor E2180, with Freq 2Ghz, Core 1.35V, FSB 800 Mhz, Socket LGA775 and L2 cache 1MB now the motherboard i use in my PC is ASUS P5KPL-CM, which in its specification says that its FSB is 1600 Mhz. now my question is what exactly FSB speed that is used in my PC, what is the command in linux to get FSB speed

NB: I use ubuntu linux 8.04.1.


1PW

A chain is as weak as its weakest link; 800 MHz. Try dmidecode.


annalissa

when i gave the command in my computer in Office

sudo dmidecode --type processor 4

I got the output as

# dmidecode 2.9
SMBIOS 2.3 present.

Handle 0x0004, DMI type 4, 35 bytes
Processor Information
Socket Designation: Socket 775
Type: Central Processor
Family: Pentium D
Manufacturer: Intel
ID: FD 06 00 00 FF FB EB BF
Signature: Type 0, Family 6, Model 15, Stepping 13
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported)
APIC (On-chip APIC hardware supported)
SEP (Fast system call)
MTRR (Memory type range registers)
PGE (Page global enable)
MCA (Machine check architecture)
CMOV (Conditional move instruction supported)
PAT (Page attribute table)
PSE-36 (36-bit page size extension)
CLFSH (CLFLUSH instruction supported)
DS (Debug store)
ACPI (ACPI supported)
MMX (MMX technology supported)
FXSR (Fast floating-point save and restore)
SSE (Streaming SIMD extensions)
SSE2 (Streaming SIMD extensions 2)
SS (Self-snoop)
HTT (Hyper-threading technology)
TM (Thermal monitor supported)
PBE (Pending break enabled)
Version: Intel(R) Pentium(R) Dual
Voltage: 0.0 V
External Clock: 200 MHz
Max Speed: 4000 MHz
Current Speed: 2000 MHz
Status: Populated, Enabled
Upgrade: Other
L1 Cache Handle: 0x0008
L2 Cache Handle: 0x0009
L3 Cache Handle: Not Provided
Serial Number:
Asset Tag:
Part Number:

I didn't see any entry for FSB,


1PW

dmidecode allows you to "read" a system and derive the motherboard & CPU information without having to open the enclosure. From there, you can consult the specifications from the web sites of the manufacturers.

In your case, you already had the data at hand. I don't know of any performance tests that will directly measure a system's FSB speed.


Anton Ertl
> sudo dmidecode --type processor 4
...
> External Clock: 200 MHz
...
>I didn't see any entry for FSB,

It's the external clock. The FSB is quad data rate (QDR), so a 200MHz QDR FSB is usually called FSB800.