I recently upgraded my shuttle av49vn motherboard from a 2.6ghz 400fsb celeron to a 2.8ghz pentium 4 with 533fsb. There is a jumper on board to change fsb speed to 533 and completed same. However the board wont boot with the new processor. Could the memory i have installed or the bios have anything to do with this? Considering the board is made for a p4 processor, i cant imagine it came with a bios not compatible.
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Re: upgraded cpu- wont boot
Teresa, if you changed the front side bus to 533, your memory must have the same clock speed. Memory clock speeds are what is known as "backwards compatible" but not forwards. This means that you could put a piece of memory of a clock speed of 400mhz into a system that runs at 333mhz and it will "downclock" the memory, but you could not put a piece of 333mhz memory in a 400mhz fsb pc and expect it to run. one of two things will happen, the system will not boot at all or the syetm will downclock the processor to a slower speed. In your case your cpu must be 533mhz clock speed with pc4200/533mhz memory to function correctly.
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You should be able to upgrade the CPU, since it seems that the DV1000's motherboard uses a socket CPU design. But, obviously, HP would rather have you choose the CPU that you want from the beginning and stick with it. The first thing to do is to check HP website to see what other configurations were/are sold for
your model. If they sell it with faster CPUs then you can upgrade to
one of them...
PLEASE NOTE: In order for a particular processor to be compatible with a particular laptop: (1) the processor must be physically compatible with the laptop socket, in your case I thing you have a Soket 479 processor (2) the laptop chipset must support the processor. (3) the chipset front side bus speed must match the processor front side bus speed, in your case 400Mhz. (4) the laptop BIOS must support the processor.
So I listed here processors with FSB at 400Mhz, I gues that DV1000 as a 855GM Motherboard that supports only 400Mhz with Socket 479
Banias Pentium M 1.3 1300 1024 400 Pentium M 1.4 1400 1024 400 Pentium M 1.5 1500 1024 400 Pentium M 1.6 1600 1024 400 Pentium M 1.7 1700 1024 400
Dothan Pentium M 710 1400 2048 400 Pentium M 715 1500 2048 400 Pentium M 725 1600 2048 400 Pentium M 735 1700 2048 400 Pentium M 745 1800 2048 400 Pentium M 755 2000 2048 400 Pentium M 765 2100 2048 400
Banias-512 Celeron M 310 1200 512 400 Celeron M 320 1300 512 400 Celeron M 330 1400 512 400 Celeron M 340 1500 512 400
Dothan-512 Celeron 205 1200 512 400
Dothan-1024 Celeron M 350 1300 1024 400 Celeron M 360 1400 1024 400 Celeron M 370 1500 1024 400 Celeron M 380 1600 1024 400 Celeron M 390 1700 1024 400
the chipset will support pentium M processors and some pentium 4 notebook processors. the bios should recognize the processor's new speed and should be able to support a 533mhz fsb. as long as your celeron is not soldered to the socket, you should be fine with the upgrade.
Ok i checked the ASUS website and looked up the CPU compatibility list for your board here: http://support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us But unfortunately that particular CPU doesn’t seem to be supported. Must be something to do with the technology inside the CPU or the amount of L2 cache or something like that. (it would require some rather intensive research to find out exact reason why... And when searching for ASUS motherboards that are compatible with that CPU it comes up with this short list; AP120-E1 AP130-E1 PSCHL009 AP140R-E1 P4RD1-MX Did you clear the cmos when installing the new cpu before powering it up? i know the CPU you have now runs at 400FSB and the new one runs at 800FSB But that board supports both speeds so that shouldn’t be a problem. What type of RAM do you have ? maybe check owners manual for memory compatibility chart for new 800FSB CPU Have you tried the latest beta bios from ASUS site : I can not guarantee that it will work but it is worth a try. http://support.asus.com/download/download.aspx?model=P4S800D-X%20&f_type=34&SLanguage=en-us NOTE: Updating the bios can be risky and should only be done to resolve compatibility issues or things like that (or to add CPU support) In the rare event of a power failure during bios update your motherboard could become permanently unusable. (Always use a brand new floppy and follow the instructions to the letter when updating system bios)