What happens if you plug in a CPU that is faster than the motherboard can recognise but it can handle (The motherboard can handle higher clock multipliers than the CPU takes but it does not officially recognise it). For example if I put an Athlon 1.4GHz in a motherboard where the BIOS only recognised up to 1.2GHz properly. Would it boot and be stable for long enough that I could flash the BIOS to the latest version?
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Hummm... my bet is that it would run. Probably wouldn't hurt to try it. I think the multiplier would be the only issue. If the chip was unlocked, it might just run slower at the 1.2 speed. Does the mobo support the 266 FSB of the 1.4 Gig Athlon? I suppose it might just run slower on the 200 FSB.
At any rate, if it doesn't work, then yes, you need to borrow another processor so you can flash the BIOS. Why did you buy a chip that won't run in your board out of the box?
It would definetly work and run as stabil as a normal 1.2 Ghz. The only problem is that the mobo does not make use of the last 200 Mhz. You can run the comp as a normal 1.2 Ghz so don't worry. I tried it with my K6-2 where the motherboard only ran a 500 Mhz CPU at 350 Mhz. It was never a problem in the 3 weeks that I used the system at only 350 Mhz. After I flashed the BIOS the system ran fine at 500 Mhz too.
I think so! The thing is that multiplier locked CPU's can be "downclocked" to whatever you like. A 1400 Mhz Athlon can run at 700 Mhz or lower if you put it in a motherboard that supports it! No problem there. In my case I just had a 500 Mhz AMD K6-2 but my motherboard only supported 350 Mhz without a new BIOS. When I installed the CPU the motherboard just found a K6-2 350 Mhz not a 500 as it really was. When I flashed the BIOS the motherboard ran the CPU at 500 Mhz like it should. So my problem was very much like yours. You can easily install the new 1400 Mhz CPU and run it at 1200 Mhz until you flash a new BIOS onto the board.
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