Dual Processors P3's?

I got some new servers - 3 1U boxes with Tyan Thunder LE S2510 Motherboards . Each has a single P3 CPU

Code:
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 8
model name      : Pentium III (Coppermine)
stepping        : 6
cpu MHz         : 797.380
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
bogomips        : 1592.52
I want to add another CPU to each of these servers to give me 3 dual processor boxes but the Tylan website seems to be suggesting that I need 512Kb cache in order to support dual processors - is this correct?

Thanks

 

 

 

 

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