Cpu

[sqrage]

can a 800FSB CPU work with a 433FSB MOBO?

 

[Wargasm]

doesn't work that way ...

the socket of the cpu defines the mobo ...

you allways look at the socket of the cpu and then u check if a mobo supports that socket .

 

[sqrage]

yea sockets are the same and everything, that i know, asking if it would still work if the FSB is faster on the CPU, will it work and just loose performance or just not work at all?

 

[The Helper]

If the chip fits.....

 

[sqrage]

k, i guess i was thinking that the 433FSB MOBO wouldnt handle a 800FBS CPU

 

[The Helper]

OK now don't go out and buy it because I said if the chip fits.... you better wait for someone with more chip and motherboard experience than I to say yes or no. AKa Wargy, Logical1 or Dtere.

 

[Dtere]

Well basically if you want to put an 800 MHZ CPU in a 433 MHZ mobo, you are wasting that 800 MHZ CPU. It will consequently run at 433 MHZ (the same as the mobo), because it cannot process faster than the bus going to it, so it's a choke. So the answer is, yes it will work, if the cpu is the type socket that will fit into your motherboard, it will just be wasting quite a bit of speed.

Now the confusing part is the hyperthreading(intel?) and hypertransport(AMD?). The RAM is supposively independant of the BUS speed with these. I'm not really that familiar with them to tell you a lot about them. Generally i just stay up on the Dual-channel RAM that is the best price for the most power. I'm using some pc3200 in mine right now. But in the past you used to have to match up the speed of your RAM to your FSB, but i'm not sure if that's the case now.

Like wargy said, the socket is the most important part. You cannot put a socket 478 into a socket 423, it just won't work. One of the biggest things i usually look for in my CPU's when i buy them is there LVL2 cache, FSB to match my mobo, and lastly clock speed.

 

[Wargasm]

in theory u can put at a lower clocked cpu on a higher clocked mobo ..
the end result is weakest of chains .

ie the mobo will clock itself to the speed of the cpu ...

so it will clock lower

normally i would say this stuff would not work in the first place ..

but i bin proven wrong in this department a few times where i seen some very odd constructions ..

question remains why u wanna put an 800 mhz cpu on a 433 mobo .. i am not saying it cannot be done (as mentioned i seen weirder stuff) but it defies logic ..

 

[Logical_1]

And where did you find a 433Mhz FSB CPU?

It should be 533Mhz (P4 class chip I'm guessing). Yes, it will work, to put the 800Mhz FSB CPU on a 533Mhz FSB board only if the CPU is supported by the BIOS of the board. Also note that a 3.2Ghz CPU (800Mhz * 4 multiplier) will perform as a 2.133Ghz CPU (533Mhz * 4 multiplier). If you don't mind the performance hit and you have verified that the BIOS of the board you are going to use will support the CPU, then it will work. It'll also run cooler as a bonus.