overclocking 805 cpu

[swill1]

I need some help to get the 805 beyond 3ghz. I returned 2gb of some 667mhz DDR2 ram thinking it was the problem. I just tried some higher quality OCZ 800MHZ ddr2, but it only runs at 400mhz. Is the motherboard limiting the overclocking, AOpen i945Pa-PLF? Should I get a motherboard that uses DDR instead of DDR2? Any help would be appreciated before I return the new memory. Thanks.

CPU Properties:
CPU Type DualCore Intel Pentium D 805
CPU Alias Smithfield
CPU Stepping B0
Engineering Sample No
CPUID CPU Name Intel(R) Pentium(R) D CPU 2.66GHz
CPUID Revision 00000F47h

CPU Speed:
CPU Clock 3006.6 MHz (original: 2667 MHz, overclock: 13%)
CPU Multiplier 20.0x
CPU FSB 150.3 MHz (original: 133 MHz, overclock: 13%)
Memory Bus 225.5 MHz
DRAM:FSB Ratio 6:4

CPU Cache:
L1 Trace Cache 12K Instructions
L1 Data Cache 16 KB
L2 Cache 1 MB per core (On-Die, ECC, ATC, Full-Speed)

Motherboard Properties:
Motherboard ID 01/16/2006-i945-6A79HAB9C-00
Motherboard Name AOpen i945Pa-PLF (3 PCI, 2 PCI-E x1, 1 PCI-E x16, 4 DDR2 DIMM, Audio, Gigabit LAN, IEEE-1394)

Chipset Properties:
Motherboard Chipset Intel Lakeport i945P
Memory Timings 5-5-5-6 (CL-RCD-RP-RAS)

SPD Memory Modules:
DIMM1: OCZ OCZ28001024ELGE 1 GB DDR2-800 DDR2 SDRAM (5-5-5-12 @ 400 MHz)
DIMM3: OCZ OCZ28001024ELGE 1 GB DDR2-800 DDR2 SDRAM (5-5-5-12 @ 400 MHz)

BIOS Properties:
System BIOS Date 01/16/06
Video BIOS Date 04/12/22
Award BIOS Type Phoenix - AwardBIOS v6.00PG
Award BIOS Message i945Pa-PLF R1.07 Jan.16.2006 AOpen Inc.

Graphics Processor Properties:
Video Adapter Asus EAX300
GPU Code Name RV370 (PCI Express x16 1002 / 5B60, Rev 00)
GPU Clock 324 MHz (original: 325 MHz)
Memory Clock 196 MHz (original: 200 MHz)

CPU-Z version 1.32.

CPU(s)
Number of CPUs 2
CPU#1 APIC ID = 0
Name Intel Pentium D 805
Code Name SmithField
Specification Intel(R) Pentium(R) D CPU 2.66GHz
Family / Model / Stepping F 4 7
Extended Family / Model 0 0
Package LGA775
Core Stepping B0
Technology 90 nm
Supported Instructions Sets MMX, SSE, SSE2, SSE3, EM64T
CPU Clock Speed 3006.7 MHz
Clock multiplier x 20.0
Front Side Bus Frequency 150.3 MHz
Bus Speed 601.3 MHz
L1 Data Cache 16 KBytes, 8-way set associative, 64 Bytes line size
L1 Trace Cache 12 Kµops, 8-way set associative
L2 Cache 1024 KBytes, 8-way set associative, 64 Bytes line size
L2 Speed 3006.7 MHz (Full)
L2 Location On Chip
L2 Data Prefetch Logic yes
L2 Bus Width 256 bits
CPU#2 APIC ID = 1
Name Intel Pentium D 805
Code Name SmithField
Specification Intel(R) Pentium(R) D CPU 2.66GHz
Family / Model / Stepping F 4 7
Extended Family / Model 0 0
Package LGA775
Core Stepping B0
Technology 90 nm
Supported Instructions Sets MMX, SSE, SSE2, SSE3, EM64T
CPU Clock Speed 3006.7 MHz
Clock multiplier x 20.0
Front Side Bus Frequency 150.3 MHz
Bus Speed 601.3 MHz
L1 Data Cache 16 KBytes, 8-way set associative, 64 Bytes line size
L1 Trace Cache 12 Kµops, 8-way set associative
L2 Cache 1024 KBytes, 8-way set associative, 64 Bytes line size
L2 Speed 3006.7 MHz (Full)
L2 Location On Chip
L2 Data Prefetch Logic yes
L2 Bus Width 256 bits

Mainboard and chipset
BIOS vendor Phoenix/Award Technologies, LTD
BIOS revision 6.00 PG
BIOS release date 01/16/2006
Chipset Intel i945P rev. A1
Southbridge Intel 82801GB (ICH7) rev. 01
Sensor chip Winbond W83627THF
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16

Memory
DRAM Type DDR2-SDRAM
DRAM Size 2048 MBytes
DRAM Frequency 225.5 MHz
FSBRAM 2:3
CAS# Latency 5.0 clocks
RAS# to CAS# 5 clocks
RAS# Precharge 5 clocks
Cycle Time (TRAS) 6 clocks
# of memory modules 2
Module 0 OCZ DDR2-SDRAM PC6400 - 1024 MBytes
Module 1 OCZ DDR2-SDRAM PC6400 - 1024 MBytes

Software
Windows version Microsoft Windows XP Professional Service Pack 2 (Build 2600)
DirectX version 9.0c

 

[RadiclDreamer]

Have you tried adding a little bit of voltage? Also, AOpen boards arent known for their OC ability

 

[swill1]

Yes, it would not boot, and then the motherboard would reset to to the stock voltage settings. There are four settings for the memory, auto, 400, 553, and 667, it seems that it will only run at 400 mhz.

 

[htne]

Memory Bus 225.5 MHz
DRAM:FSB Ratio 6:4

This looks like the problem to me. Try setting the FSB ratio to 1:1.

 

[swill1]

Thanks for the feedback. I didn't see any setting in the BIOS that would allow me to change the FSB ratio. Any idea where it would if I even have that ability with this motherboard?