With the coming of the "Open Source" movement, I've personally wondered when some motherboard manufacturer's going to get the lead out & open source their BIOS code, complete with comments? That, I'd love, I'd buy a few of those! On overclocking; The old Celeron 300A's can be run as high as 550 MHz, sometimes, at 2.0V, on an ABit BX6-2 motherboard. I've seen some Celeron 366A's IIRC overclocked, as well. Other processors can be overclocked, also. (I ran one 5x86-133 CPU as a DX4-120 for quite some time, on an old VLB motherboard that wouldn't run it as a clock quadrupled CPU; gave *good* I/O throughput, made for a good Win95 box at the time!) eBay usually has quite a few overclocked guaranteed motherboard/CPU combinations for auction at any given time, you can always use it as a source of information (See what boards at what speeds are SELLING like hotcakes will give you a good idea of the popularity of a given CPU/Motherboard combination; Not all CPU's will overclock flawlessly, you do want to test all instructions properly if you overclock, if things get flakey try lowering the clock rate ) My style's to parallel process, reduces the need for all that speed when you can do things in parallel, P200MMX and dual CPU P166MMX are my fastest machines right now, would you believe? Mark Sean Breheny wrote: > > Hi Brian, > > I have never done it, but I believe the procedure is to just tell your > motherboard (using jumpers or a config utility) to increase the clock rate. > In addition, you usually increse the core voltage slightly (I think) > because CMOS circuits can run a bit faster at higher Vdd (higher Vdd > increases the width of the acceptible high and low regions of the voltage > transfer characteristic, and increases the amount of current which the FETs > conduct, thus charging parasitic capacitances faster). > > There are certain motherboards which are more conducive to doing this > because they allow you more independent control of all of the parameters > (clock speed, core voltage, etc.) I think "Abit" is one of the main MB > manufacturers which is popular among overclockers. Possibly AOpen also. > > Take a look at: > > http://www.anandtech.com > > Sean > > At 10:42 PM 11/20/99 -0500, you wrote: > >I have seen a lot of references to overclocking Pentiums on this list. How > >exactly do you do this? Is it a crystal change? > > > > | > | Sean Breheny > | Amateur Radio Callsign: KA3YXM > | Electrical Engineering Student > \--------------=---------------- > Save lives, please look at http://www.all.org > Personal page: http://www.people.cornell.edu/pages/shb7 > mailto:shb7@cornell.edu ICQ #: 3329174 -- I do small package shipping for small businesses, world-wide.