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I have a 1400 mhz AMD cpu, but on start up it shows only 1050 mhz. How do I fix the problem?

Thanks Brian Brockway

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by clutchmaster

You need to see on the motherboard if there`s is a 133/100 bus speed jumper set it at 133

or if it is in the bios you need to set it to 133 and not 100mhz this is why your cpu is at 1050 and not 1400mhz ..

:)
i hope you find it.

by cg it

Most of todays motherboards that take Athlons also take Durons. The core clock speed of a Duron processor is 100 X2 or 200 Mhz. Therefore the default motherboard CPU FSB core clock speed is set at 100. Your 1400 Mhz Athlon is running at 1050 mhz (100 X2) FSB core clock speed. Change the BIOS default core clock speed to 133 Mhz (133 X2 = 266 Mhz). This will bring up your Athlon to the 1400 Mhz @ 266 Mhz core clock speed. Your motherboard manual has the complete directions for changing your FrontSide Bus core clock speed. If you have a motherboard that has a manual adjustment of the FSB, ensure you do not go past the 133 mhz FSB unless you have the stepping version of the 1.4 ghz Athlon. If you do not have the stepping version of the Athlonand go above the 133 mhz FSB setting on the motherboard, damage to the L1 L2 cache can result (which basically toast's the processor. See http://www.AMD.com for a full set of specs. (they even have a free CD you can order with a set of specs).

by cactus pete

Are you sure it's a 1400MHz, or is it an XP 1400+? The name of the processor no longer indicates the clock speed.

by thechas

If the CPU is an Athlon XP, then the raw clock speed is about right.
The XP series CPUs are performance rated, not clock speed rated.

If a standard Athlon, you need to verify what the Front Side Bus speed of your CPU is.

If the FSB is 266MHz, you need to have either 133MHz SDRAM, or PC2100DDR ram on your system to enable the 266MHz FSB.

If the FSB is 200MHz, then you need to change the multiplier to 14*

For some motherboards, you need to set the FSB and multiplier manually to getthe true clock speed.

Chas

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