Overclocking and Test Setup

Overclocking

In an odd sort of coincidence, the AOpen 855 motherboard was able to overclock the Pentium M 755 processor in the same fashion that we saw the DFI 855 motherboard do so.  By overclocking the FSB to 120 MHz and leaving the multiplier at its 20x setting, we were able to overclock to a 2408 MHz clock speed.  This is really an incredible overclock and makes a pretty drastic change in the complete system performance. 

Though I didn’t run the full gamut of tests on the AOpen system in its overclocked state, I did run enough stability tests to be confident in the results.  The performance numbers of the overclocked processor from our DFI review are included in our results here for your reference though. 

One rep in the motherboard industry reported to me that all the Pentium M samples they had seen were seeing a very similar 20% overclock potential.  Could we possibly be seeing some kind of “overclock lock” like we saw on the first batch of 925X chipsets from Intel? 

Test Setup

Though we obviously had to make some slight changes, the test beds were kept as exact as possible.  The Pentium M setup uses the same GPU, but in its AGP form and of course we have the other differences we already mentioned (such as DDR333, single channel, etc).  

Also in this case, with the AOpen system, we used the included 275 watt power supply (that was still able to power the X800 XT card flawlessly) and an IDE drive instead of SATA.

Pentium M Test System Setup

CPU

Intel Pentium M 755

Motherboards

AOpen EY855-II SFF
DFI 855GME-MGF

Power Supply 

AOpen 275 watt
Antec 480 watt

Memory 

2x512MB Corsair Micro DDR500
2x512MB Kingston HyperX 4300 DDR

Hard Drive

200 GB Maxtor 7200 RPM IDE
250 GB Maxtor 7200 RPM SATA

Sound Card

Creative Labs Live!

Video Card

ATI X800 XT (AGP)

Video Drivers

ATI Catalyst 4.11

DirectX Version

DX 9.0c

Operating System

Windows XP w/ Service Pack 1

 

AMD Test System Setup

CPU

Athlon 64 FX-55
Athlon 64 4000+
Athlon 64 3800+
Athlon 64 3500+

Motherboards

NVIDIA nForce4 Ultra Reference

Power Supply 

Antec 480 watt

Memory 

2x512MB Corsair Micro DDR500
2x512MB Kingston HyperX 4300 DDR

Hard Drive

250 GB Maxtor 7200 RPM SATA

Sound Card

Creative Labs Live!

Video Card

ATI X800 XT

Video Drivers

ATI Catalyst 4.11

DirectX Version

DX 9.0c

Operating System

Windows XP w/ Service Pack 1

 

 Intel Test System Setup

CPU

Intel 660
Intel 3.73XE
Intel 3.46XE
Intel 560
Intel 550

Motherboards

Intel 925XE Reference

Power Supply 

Antec 480 watt

Memory 

2x512MB Corsair Micro DDR2-533

Hard Drive

250 GB Maxtor 7200 RPM SATA

Sound Card

Creative Labs Live!

Video Card

ATI X800 XT

Video Drivers

ATI Catalyst 4.11

DirectX Version

DX 9.0c

Operating System

Windows XP w/ Service Pack 1

 

The benchmarks used were:

  • SiSoft Sandra 2004 SP1
  • AIDA32
  • Cachemem
  • Quake III: Arena
  • Unreal Tournament 2003
  • X2: The Threat
  • 3D Mark 2001: SE v330
  • 3DMark03
  • Far Cry 1.1
  • Doom 3
  • PCMark04
  • Business Winstone 2004
  • Content Creation Winstone 2004
  • LAME MP3 Encoding
  • XMPEG / DivX Encoding
  • WinRAR Compression
  • CineBench 2003
  • ScienceMark 2.0 Beta
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