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Asked: 2021-12-08T11:33:12+00:00 In:

Solved Toshiba L455 S5000 Cpu Upgrade

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cpu upgrade : celeron900 800mhz socket p to intel p8700 2.53mhz socket p ? ,bios cannot upgrade now ,ordered new battery to upgrade bios to 1.30 to 1.50version as cpu p8700 would not run or start but old cpu a celeron900 still runs ok ???

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      How did you determine the P8700 would be compatible? Your laptop is based on the Intel GL40 Express Chipset which only supports up to 800MHz FSB. The P8700 is a 1066MHz FSB CPU. So even if it was compatible (which it’s not), it would only run at 1.9GHz.

      “Socket 479 and Socket P have both supported two generations of Intel mobile processors, with the later generation having a higher front side bus. In both cases, the later generation of processor will not work with the previous generation of chipset: almost always, a 533MHz FSB Pentium M will not work with a 400MHz FSB chipset and a 1066MHz Core 2 Duo will not work with an 800MHz FSB chipset. 400MHz FSB Pentium M processors work in 533MHz FSB chipsets, but there is no confirmation that 533MHz to 800MHz FSB Core 2 Duo processors will work in 1066MHz chipsets.”

      http://forum.notebookreview.com/har…

      http://support.toshiba.com/support/…

      http://www.intel.com/content/www/us…

      http://ark.intel.com/products/37006…

      http://ark.intel.com/products/41498…

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