athlon xp 2100+ showing as amd athlon 1500+

[joe_nvidio828]

so basically the CPU is running at 1300 Mhz instead of 1700, roughly. I checked CPU-Z, and it confirms im running at 1300.60 Mhz, 13.0 multiplier.

things ive tried are setting multiplier to 12 and fsb to 133, as well as 13 and 133(what it should be). and when i do either, the system locks up at the windows xp loading screen, and i end up having to reset the cmos to get it to boot.

working with a Shuttle AK31 V3.1, fully updated bios to support this CPU. brand new hsf, which works great. 5500 RPM.

is there a jumper or switch or something im missing?

heres some info from CPU-Z. CPU info first, then chipset info, then memory. any other info you need to help me just let me know!

thanks!



Processors Information
-------------------------------------------------------------------------

Processor 1 ID = 0
Number of cores 1 (max 1)
Number of threads 1 (max 1)
Name AMD Athlon XP
Codename Palomino
Specification AMD Athlon(tm) XP 1500+
Package Socket A (462)
CPUID 6.6.2
Extended CPUID 7.6
Core Stepping A5
Technology 0.18 um
Core Speed 1300.4 MHz
Multiplier x13.0
Instructions sets MMX (+), 3DNow! (+), SSE
L1 Data cache 64 KBytes, 2-way set associative, 64-byte line size
L1 Instruction cache 64 KBytes, 2-way set associative, 64-byte line size
L2 cache 256 KBytes, 16-way set associative, 64-byte line size
FID/VID Control no

K7 Thermal sensor yes


Thread dumps
-------------------------------------------------------------------------

CPU Thread 0
APIC ID 0
Topology Processor ID 0, Core ID 0, Thread ID 0
Type 02001002h
Max CPUID level 00000001h
Max CPUID ext. level 80000008h
Cache descriptor Level 1, I, 64 KB, 1 thread(s)
Cache descriptor Level 1, D, 64 KB, 1 thread(s)
Cache descriptor Level 2, U, 256 KB, 1 thread(s)



Chipset
-------------------------------------------------------------------------

Northbridge VIA KT266/333 rev. 00
Southbridge VIA VT8233 rev. 00
Graphic Interface AGP
AGP Revision 2.0
AGP Transfer Rate 4x
AGP SBA supported, enabled
Memory Type DDR
Memory Size 2432 MBytes
DRAM Interleave none
CAS# latency (CL) 2.5
RAS# to CAS# delay (tRCD) 2
RAS# Precharge (tRP) 2
Cycle Time (tRAS) 5


Memory SPD
-------------------------------------------------------------------------

DIMM # 1
SMBus address 0x50
Memory type DDR
Manufacturer (ID) Kingston (7F98000000000000)
Size 1024 MBytes
Max bandwidth PC2100 (133 MHz)
Part number K
Serial number 720A68ED
Manufacturing date Week 36/Year 08
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no
Nominal Voltage 2.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 2.0-2-2-5-n.a. @ 100 MHz
JEDEC #2 2.5-3-3-6-n.a. @ 133 MHz

DIMM # 2
SMBus address 0x51
Memory type DDR
Manufacturer (ID) (127F000000000000)
Size 256 MBytes
Max bandwidth PC2100 (133 MHz)
Part number
Number of banks 1
Data width 64 bits
Correction None
Registered no
Buffered no
Nominal Voltage 2.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 2.0-2-2-5-n.a. @ 100 MHz
JEDEC #2 2.5-3-3-6-n.a. @ 133 MHz

DIMM # 3
SMBus address 0x52
Memory type DDR
Manufacturer (ID) Kingston (7F98000000000000)
Size 1024 MBytes
Max bandwidth PC2100 (133 MHz)
Part number K
Serial number 710A34EC
Manufacturing date Week 36/Year 08
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no
Nominal Voltage 2.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 2.0-2-2-5-n.a. @ 100 MHz
JEDEC #2 2.5-3-3-6-n.a. @ 133 MHz

DIMM # 4
SMBus address 0x53
Memory type DDR
Manufacturer (ID) Hyundai Electronics (AD00000000000000)
Size 128 MBytes
Max bandwidth PC2100 (133 MHz)
Part number HYMD116 6458-H
Serial number 06095961
Manufacturing date Week 01/Year 34
Number of banks 1
Data width 64 bits
Correction None
Registered no
Buffered no
Nominal Voltage 2.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 2.0-2-2-5-n.a. @ 100 MHz
JEDEC #2 2.5-3-3-7-n.a. @ 133 MHz

[mavroxur]

Your FSB is wrong. The 2100+ uses a 133FSB to achieve ~1700MHz. Your FSB appears to currently be 100MHz, that's why the chip is clocked at 1300MHz.

[joe_nvidio828]

[joe_nvidio828]

got optimized defaults on now but to get 131 fsb to boot up, had to increase voltage one more time from .075 to .100.

temp = 49
speed = 1703.25

and managed to keep memory voltage the same. so successful upgrade from 950 Mhz duron i guess. took some hours, but it is def a nice improvement.

now to see if i can get my 2400+ to work... hmmm...

[mavroxur]

[joe_nvidio828]

oh. so i should keep the vcore at 1.75volts? isnt that the default? i had to mess with the voltages alot to even get it to boot. trust me, when i first started playing with the numbers, i left all the voltages at default, and just put the multiplier at 12, then 13, and kept the fsb at 133, and it wasnt even making it past POST...

oh and it still isnt perfect. im having freezes all the time. but the cpu temp has not gone above 52. core voltage right now is 1.760. x13 multiplier and 129 fsb... lowering the fsb seems to be the only way to keep this hunk of crap PC running. :/

any ideas? memory voltages maybe? mine are all default at 2.50 right now. down to 1678.88 Ghz..