Intel FSB overclock

General problems when change the FSB:

With 🙁 or without fixed multiplier 🙂 overclocking is still possible !!! The most recent problem with fixed multiplier is that you have to change the Front Side Bus frequency. But changing the FSB will result in higher pci, AGP and HDD-Controller frequency !!! I realised the higher controller frequency painful last week on my Asus P3B: My CPU run fine at 124 x 4,5 = 558 MHz, ASUS has two choices to set FSB to 124 MHz. We can choose either 31 MHz or 41,3 MHz.The result at 41,3 MHz was a destroyed File Allocation Table on my Harddisk !!! So be very careful in changing your system speed…I don’t hold responsible for any damage caused by overclocking. There is always a risk to damage your CPU, etc.I made this table of frequency’s for better understanding what you’re doing.Take care about the red fields. Any speed outside specification may damage something in your PC !!!

Front Side Bus AGP PCI Multiplier (results are rounded)
3 3,5 4 4,5 5 5,5 6 6,5 7 7,5 8
66 66 33 200 233 266 300 333 366 400 433 466 500 533
75 75 38 225 263 300 338 375 413 450 488 525 563 600
83 83 42 249 290 333 374 415 457 500 540 581 623 664
100 66 33 300 350 400 450 500 550 600 650 700 750 800
103 69 34 309 360 412 466 515 567 618 670 721 773 824
112 75 37 336 392 448 504 560 616 672 728 784 840 896
120 80 40/30 360 420 480 540 600 660 720 780 840 900 960
124 83 41/31 372 433 500 558 620 682 744 806 868 930 992
133 89 44/33 400 466 533 600 665 732 800 865 931 1000 1064
140 93 47/35 420 490 560 630 700 770 840 910 980 1050 1120
150 100 50/38 450 525 600 675 750 825 900 975 1050 1125 1200

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