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P4-631 Multiplier changing from 12 to 15 randomly

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rds5150

New Member
Joined
Jan 14, 2008
I just bought a used 631 chip and according to everest my fsb changes randomly from 3.0 to 3.75 and upon this change the multiplier changes from 12x to 15x, usually under a small load, sometimes just sitting idle.

does this have to do with, intel speedstep technology, i have disabled this
feature and it still does the same thing.

it also has:
Hyper-Threading Technology 1
Intel® EM64T 2
Execute Disable Bit 3
Intel® Thermal Monitor 2


is this normal for the 631, as my old 511 does not act like this.


any help would be greatly appreciated, as i only have 5 days to r.m.a.


thanks


win xp pro sp2
Asus-P5P800SE----http://www.asus.com/products.aspx?l1=3&l2=11&l3=26&l4=0&model=629&modelmenu=2
P4-631-----http://processorfinder.intel.com/details.aspx?sSpec=SL9KG
4 - 512 MB PC3200 DDR
GeForce 6200 AGP
550 w p.s.



--------[ EVEREST Ultimate Edition ]------------------------------------------------------------------------------------

Version EVEREST v4.20.1170
Benchmark Module 2.3.212.0
Homepage http://www.lavalys.com/
Report Type Quick Report
Computer 22NDSTRE-5CBE94
Generator Owner
Operating System Microsoft Windows XP Professional 5.1.2600 (WinXP Retail)
Date 2008-09-01
Time 13:23


--------[ Overclock ]---------------------------------------------------------------------------------------------------

CPU Properties:
CPU Type Intel Pentium 4 631
CPU Alias Cedar Mill
CPU Stepping D0
Engineering Sample No
CPUID CPU Name Intel(R) Pentium(R) 4 CPU 3.00GHz
CPUID Revision 00000F65h

CPU Speed:
CPU Clock 3000.2 MHz (original: 3000 MHz)
CPU Multiplier 12.0x
CPU FSB 250.0 MHz (original: 200 MHz, overclock: 25%)
Memory Bus 166.7 MHz
DRAM:FSB Ratio 4:6

CPU Cache:
L1 Trace Cache 12K Instructions
L1 Data Cache 16 KB
L2 Cache 2 MB (On-Die, ECC, ATC, Full-Speed)

Motherboard Properties:
Motherboard ID 63-0805-000039-00101111-070607-I865PE$A0331039_BIOS DATE: 07/06/07 17:09:54 VER: 08.00.10
Motherboard Name Asus P5P800 SE (4 PCI, 1 AGP, 4 DDR DIMM, Audio, Gigabit LAN)

Chipset Properties:
Motherboard Chipset Intel Springdale i865PE
Memory Timings 2.5-4-4-8 (CL-RCD-RP-RAS)
PAT Disabled

SPD Memory Modules:
DIMM1: Corsair Value Select VS512MB400 512 MB PC3200 DDR SDRAM (2.5-3-3-8 @ 200 MHz)
DIMM2 512 MB PC3200 DDR SDRAM (3.0-4-4-8 @ 200 MHz) (2.5-4-4-7 @ 166 MHz)
DIMM3: Corsair Value Select VS512MB400 512 MB PC3200 DDR SDRAM (2.5-3-3-8 @ 200 MHz)
DIMM4 512 MB PC3200 DDR SDRAM (3.0-4-4-8 @ 200 MHz) (2.5-4-4-7 @ 166 MHz)

BIOS Properties:
System BIOS Date 07/06/07
Video BIOS Date 06/01/06
DMI BIOS Version 0805

Graphics Processor Properties:
Video Adapter XFX GeForce 6200 AGP
GPU Code Name NV44AGP (AGP 8x 10DE / 0221, Rev A1)
GPU Clock 351 MHz (original: 350 MHz)
Memory Clock 266 MHz (original: 266 MHz)
 
thanks for the quick response Jolly-Swagman


disabling c-1 took care of it, already had eist disabled.

temps @ 3.8 are 22 idle and 32 full load, so it was not a heat issue.
3.0 at 18 idle




should i be running with eist and c-1 disabled full time.

i mean it's kinda cool to run at 3.0, then under a load it bumps itself up to 3.8 when needed.

does eist have any effect on performance, longevity or anything.



my main question ( concern ) was answered, that the 631 has built in throttling and will randomly change the multiplier and fsb.


thanks
 
Last edited:
Yes, EIST helps the CPU reduce temperature. It also reduces power usage.
For normal operation you won't really feel any difference but when you run something CPU intensive, the clock speed will be back up at the stock level giving you max performance.
 
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