Field Value Motherboard Name AOpen AX4R Plus (6 PCI, 1 AGP, 1 CNR, 4 DDR DIMM, Audio

[87pontiac]

looking to overclock slightly need help in doing so.

Computer:
Operating System Windows 7 Ultimate Media Center Edition
OS Service Pack Service Pack 1
DirectX 4.09.00.0904 (DirectX 9.0c)
Computer Name AOPEN
User Name

Motherboard:

Motherboard Name AOpen AX4R Plus (6 PCI, 1 AGP, 1 CNR, 4 DDR DIMM, Audio, LAN)
Motherboard Chipset Intel Granite Bay E7205
Field Value
Motherboard ID 01/14/2003-i7205-W83627-6A69WAB9C-00

System Memory 3072 MB (PC3200 DDR SDRAM)
BIOS Type Award (01/14/03)
Field Value
CPU Alias Northwood, A80532
Field Value
CPU Stepping D1
Field Value
CPUID CPU Name Intel(R) Pentium(R) 4 CPU 2.66GHz
Field Value
CPU Clock 2761.85 MHz (original: 2667 MHz, overclock: 4%)
Field Value
CPU Multiplier 20.0x
Field Value
CPU FSB 138.09 MHz (original: 133 MHz, overclock: 4%)
Field Value
Memory Bus 138.09 MHz

[Taxmancometh]

While the computer starts you generally press F-2 or delete to enter the BIOS then you can change things to overclock. That is if you have the options. BTW - Do you have a good cpu cooler and a PSU?

[87pontiac]

Fairly good set of fans and psu, really looking for which settings to adjust as a place to start

[JLK03F150]

Field Value
CPU Clock 2761.85 MHz (original: 2667 MHz, overclock: 4%)

Field Value
CPU Multiplier 20.0x

Field Value
CPU FSB 138.09 MHz (original: 133 MHz, overclock: 4%)

Field Value
Memory Bus 138.09 MHz

The CPU Clock come from CPU Multiplier times CPU FSB (Front Side Bus). The Multiplier can not be increased, so overclocking is done by increasing the FSB. You already have a small overclock (FSB 133MHz -> 138MHz).

Look for a BIOS setting called AGP/PCI Bus and set it to 66/33 MHz. If you don't have this setting your CPU overclocking will be limited to 12-15% maximum. As you increase the FSB, the PCI Bus also increases (unless it can be manually set to 33MHz). If the PCI Bus is increased too far your hard drive data will be corrupted.

I noticed your Memory Bus is 1:1 with the CPU FSB. You will see better performance if you can run the memory at 166MHz. It will increase proportionately with the FSB, and can go as high as 200MHz (PC3200) without risking instability.

Do you have a way to monitor CPU temperature? Do you have a program to stress the CPU for stability testing?

[87pontiac]

Thanks for the info I can monitor the CPU Temp using Everset Home Edition and no I have no software for stress testing.
Ron
Canada

[JLK03F150]

Here's an old version of Prime95 you can use for stress testing. You want to choose Torture Test, then you want to run Small FFT to test the CPU stability. You can then run Blend as a system test after you have determined the CPU overclock is stable.
Download Prime95 v24.14 | techPowerUp