Hi
I have a Athlon 2400+ and when i run Amd's cpuinfo it gives its clock speed @ 1341 and Amd's cpuid gives it @ 1327. Sometimes it goes up to 1500+ or down to 1200. But the really weird thing is when my system is booting up it says i have a 2400+ and when i use Wcpuid it says the clock speed is 2004.54, also if i go to windows system information its says its running at 2004.
But wait it gets even more freakier...when cpuid or cpuinfo give my clock speed wrong i reset and then theres a 50% chance that cpuinfo and cpuid will give the right clock speeds...once reseted cpuinfo will say clock speed of 2037 and cpuid says 2004.
Now i wouldnt mind this if it didnt have any reprucussions on my system but it does. For example when cpuinfo and cpuid give the wrong clock speed i tested it out by playing Freelancer. The sound becomes distorted and it lags in places where it doenst lag when cpuinfo and cpuid give the clock speed at 2037 and 2004.
[ WCPUID Version 3.1a (c) 1996-2002 By H.Oda! ]
Processor #1 : AMD Athlon XP (Model 8) / D74F57BD
Platform : Socket A (Socket 462)
Vendor String : AuthenticAMD
CPU Type : Original OEM Processor (0)
Family : 6 (7)
Model : 8 (8)
Stepping ID : 1 (1)
Brand : ----
APIC : ----
HT Log.CPU Cnt : ----
Name String : AMD Athlon(tm) XP 2400+
Internal Clock : 2004.54 MHz
System Bus : 267.27 MHz DDR
System Clock : 133.64 MHz
Multiplier : 15.0
L1 I-Cache : 64K Byte
L1 D-Cache : 64K Byte
L1 T-Cache : ----
L1 Cache : ----
L2 Cache : 256K Byte
L2 Speed : 2004.54 MHz (Full)
MMX Unit : Supported
SSE Unit : Supported
SSE2 Unit : Not Supported
MMX2 Unit : Supported
3DNow! Unit : Supported
3DNow!+ Unit : Supported
Host Bridge : 10DE:01E0.C1 [NVIDIA nForce2]
South Bridge : 10DE:01EB.C1 [NVIDIA nForce2 MCP]
VGA Device : 10DE:0201.A3 [NVIDIA GeForce3 Ti 200]
Memory Size : 512M Byte
Memory Clock : ----
OS Version : Windows XP Version 5.01.2600 Service Pack 1
NOW THIS IS FROM AMDCPUID:
Instruction Feature Value
Processor Speed Test 1,341 Mhz
CPU ID (0) Vendor ID "AuthenticAMD"
EAX Highest index: 1
EBX Vendor [0..3] 0x68747541 "Auth"
ECX Vendor [8..11] 0x444D4163 "cAMD"
EDX Vendor [4..7] 0x69746E65 "enti"
CPU ID (1) Processor & Features
EAX Processor: 0x681
bits 13-12 type: 0
bits 11-8 instruction family: 6
bits 7-4 model: 8
bits 3-0 stepping: 1
EDX Feature Flags: 0x0383FBFF
bit 0 Floating-Point Unit yes
bit 1 Virtual Mode Ext yes
bit 2 Debugging Ext yes
bit 3 Page Size Ext yes
bit 4 Time Stamp Counter yes
bit 5 Model Specific Regs yes
bit 6 Physical Addr Ext yes
bit 7 Machine Check Ext yes
bit 8 CMPXCHG8 Instruction yes
bit 9 Advanced Prog Int Cntlr (APIC) yes
bit 11 SYSENTER/SYSEXIT yes
bit 12 Machine Type Range Regs yes
bit 13 Global Paging Ext yes
bit 14 Machine Check Arch yes
bit 15 Cond Move Instruction yes
bit 16 Page Attribute Table yes
bit 17 PSE-36 yes
bit 23 MMX Technology yes
bit 24 FXSAVE/FXRSTOR yes
bit 25 Streaming SIMD Extension yes
CPU ID (80000000) Extended Functions
EAX Largest Ext Function 0x80000008
CPU ID (80000001) Processor & Features
EAX Processor: 0x781
bits 11-8 Generation: 7
bits 7-4 Model: 8
bits 3-0 Step: 1
EDX Feature Flags: 0xC1C3FBFF
bit 0 Floating-Point Unit yes
bit 1 Virtual Mode Ext yes
bit 2 Debugging Ext yes
bit 3 Page Size Ext yes
bit 4 Time Stamp Counter yes
bit 5 Model Specific Regs yes
bit 6 Page Address Ext yes
bit 7 Machine Check Ext yes
bit 8 CMPXCHG8 Instruct yes
bit 9 APIC yes
bit 11 SYSCALL/SYSRET yes
bit 12 Memory Type Range Regs yes
bit 13 Global Paging Ext yes
bit 14 Machine Check yes
bit 15 Int Cond Move Instruct yes
bit 16 Page Attribute Table yes
bit 17 PSE-36 yes
bit 22 AMD MMX Extensions yes
bit 23 MMX Technology yes
bit 24 Reserved yes
bit 30 AMD 3D Now! Extensions yes
bit 31 3D Now! yes
CPU ID (80000002..4) Processor Name "AMD Athlon(tm) XP 2400+"
CPU ID (80000002)
EAX Name [0..3] 0x20444D41 "AMD "
EBX Name [4..7] 0x6C687441 "Athl"
ECX Name [8..11] 0x74286E6F "on(t"
EDX Name [12..15] 0x5820296D "m) X"
CPU ID (80000003)
EAX Name [16..19] 0x34322050 "P 24"
EBX Name [20..23] 0x002B3030 "00+"
ECX Name [24..27] 0x00000000 ""
EDX Name [28..31] 0x00000000 ""
CPU ID (80000004)
EAX Name [32..35] 0x00000000 ""
EBX Name [36..39] 0x00000000 ""
ECX Name [40..43] 0x00000000 ""
EDX Name [44..47] 0x00000000 ""
CPU ID (80000005) L1 Cache Information
EAX 2-Mbyte/4-Mbyte Pages 0x0408FF08
bits 31-24 Data TLB associativity 0x04
bits 23-16 Data TLB # entries 0x08 (8)
bits 15-8 Instr TLB associativity 0xFF (Full)
bits 7-0 Instr TLB # entries 0x08 (8)
EBX 4-Kbyte Pages 0xFF20FF10
bits 31-24 Data TLB associativity 0xFF (Full)
bits 23-16 Data TLB # entries 0x20 (32)
bits 15-8 Instr TLB associativity 0xFF (Full)
bits 7-0 Instr TLB # entries 0x10 (16)
ECX L1 Data Cache 0x40020140
bits 31-24 size 0x40 (64 Kbytes)
bits 23-16 associativity 0x02
bits 15-8 lines/tag 0x01
bits 7-0 line size 0x40 (64 bytes)
EDX L1 Instr Cache 0x40020140
bits 31-24 size 0x40 (64 Kbytes)
bits 23-16 associativity 0x02
bits 15-8 lines/tag 0x01
bits 7-0 line size 0x40 (64 bytes)
CPU ID (80000006) L2 Cache Information
EAX 2-Mbyte/4-Mbyte Pages 0x00000000
EBX 4-Kbyte Pages 0x41004100
bits 31-28 L2 Data TLB associativity 0x04 (4-way)
bits 27-16 L2 Data TLB # entries 0x0100 (256)
bits 15-12 L2 Inst TLB associativity 0x04 (4-way)
bits 11-0 L2 Inst TLB # entries 0x0100 (256)
ECX L2 Cache 0x01008140
bits 31-16 size 0x0100 (256 Kbytes)
bits 15-12 associativity 0x08 (16-way)
bits 11-8 lines/tag 0x01
bits 7-0 line size 0x40 (64 bytes)
CPU ID (80000007) Enhanced Power Management Information
EDX EPM Flags 0x00000001
bits 2-0 Enhanced Power Management 1
CPU ID (80000008) Reserved
EAX Reserved 0x00002022
EBX Reserved 0x00000000
ECX Reserved 0x00000000
EDX Reserved 0x00000000
My specs:
AMD Athlon XP 2400+
SL-75FRN2-L
Inno 3d Geforce 3 Ti200
Kingston 256MB 2700 x2
Seagate Barracuda 80gb
Soundblaster Live! Value
Lucent Winmodem 56k
Liteon 48x24x48 CDRW
Liteon 48x Cdrom
Leadman Powmax 400w PSU
Windows XP Professional
