Finally did CPU swap in M35X-S111

Well I finally got around to my threatened CPU swap. Went pretty well actually with the dissassembly instructions I had. Couple of head scratching moments but nothing insurmountable. The keyboard ribbon cable was a pain to get reattached... I've now done just about everything I can do to this thing to make is run better. I've installed 1Gb of RAM, upgraded the HDD to a 5400 RPM unit and now upgraded the CPU from a 1.5 GHz Celeron M to a 1.7 GHz Pentium M. Here are the before and after benchmarks for the CPU upgrade using various benchmarks:

3D Mark 2001SE Results are 2288 with 1 Gb of RAM 1.5 GHz Celeron M
3D Mark 2001SE Results are 2474 with 1 Gb of RAM 1.7 GHz Pentium M
an 8.1% Increase. Basically didn't do much for it's impressive graphics capability.

PC Mark 04 Results are 2423 with 1 Gb of RAM 1.5 GHz Celeron M
PC Mark 04 Results are 2814 with 1 Gb of RAM 1.7 GHz Pentium M
a 16.1 % Increase. This turned out to be almost what I expected. I was hoping to get 15 to 20%. So I'm happy.

And just for fun I also ran the PC Mark 05 benchmark suite and it came in at1556 with 1 Gb of RAM 1.7 GHz Pentium M. I didn't have the result of this test from the old CPU setup.

No real surprises in any of this. Just for info here are the benchmark results for all the notebooks and desktops in my family for comparison. All the results are from SiSoft Sandra Combined Performance benchmark. About the only thing that surprised me was the drop in the File System Benchmark which makes no sense

CPU Arithmetic Benchmark

Stock Presario 700 1GHz Duron5565
Toshiba S161 Celeron 1.4 GHz7388
IBM Notebook P4 1.8 GHz7635
Toshiba S111 Celeron 1.5 GHz9065
Toshiba S111 Pentium 1.7 GHz10301

CPU Multi-Media Benchmark

Stock Presario 700 1GHz Duron18999
Toshiba S161 Celeron 1.4 GHz25941
IBM Notebook P4 1.8 GHz30639
Toshiba S111 Celeron 1.5 GHz29881
Toshiba S111 Pentium 1.7 GHz34054

Memory Bandwidth Benchmark

Stock Presario 700 1GHz Duron1189
Toshiba S161 Celeron 1.4 GHz4289
IBM Notebook P4 1.8 GHz3558
Toshiba S111 Celeron 1.5 GHz4183
Toshiba S111 Pentium 1.7 GHz4363

File System Benchmark

Stock Presario 700 1GHz Duron13162
Toshiba S161 Celeron 1.4 GHz24901
IBM Notebook P4 1.8 GHz21804
Toshiba S111 Celeron 1.5 GHz31976
Toshiba S111 Pentium 1.7 GHz22855

Question on bus speed

There was one thing I was wondering about with the CPU upgrade and that is bus speed.

My stock M35X-S111 says it's a Celeron M running at 1.5 GHz with a bus speed of 333 MHz.

After the CPU swap it automatically changed the CPU speed to match the Pentium M 1.7 GHz Dothan that I installed. At the time I wondered if the bus speed would remain at the 333 MHz setting. From what I understood about doing this is that I expected the CPU setting to change but didn't think the bus speed would change. From what I can tell it also changed the bus speed to 400 MHz to match what the new CPU is capable of... OR are these programs like CPUZ just reading what the CPU says? Do you think it really did alter the bus speed as well. I was under the impression it wouldn't... is there any definitive way to determine this?