The GIG - 266FSB

G

Guest

Guest
First i wanna ask if there are a great difference between 266fsb and a 200fsb. its only 66mhz more...
i have decided to go for a AMD cpu (1g), because it is competitive to P4, and are much easier to overclock (lead on bridges).
the specs i am thinkin about now are:

Case: Aopen HQ45 (300W)
MOB: Asus A7V KT133
CPU 200FSB: AMD Thunderbird 1000MHZ with Swiftech MC370-0A FSB (maybe artic silver goop)
RAM: NO-NAME 256MB PC133
GPU: Asus V7700 Geforce2 GTS 32MB
HDD: Maxtor 40,9GB 7200RPM
and some other stuff, but i just dont bother to write down...

are there any known compability problems with this components?
do i need DDR-RAM to run at 266FSB? or can i use normal PC133 SDRAM? how much can i apromixately overclock the CPU?
any tips ideas? i am new with AMD pcs, i have (had) a celeron 300a overclocked to 500mhz... until it had a melt down...
i also got tired of the 66FSB.. it is terrible slow!
 
G

Guest

Guest
Athlons use DDR busses (don't confuse with DDR memory). The 'A' and 'B' type Athlons both had 100MHz DDR bus = 200MHz bus. The newer 'C' type Athlons have 133MHz DDR = 266MHz bus.

The original VIA KT133 chipset supported only A/B type Athlons (100MHz DDR bus) but with 133MHz SDRAM (not DDR) or 100MHz SDRAM (not DDR), hence the name. The KT133A supports A, B and C type Athlons with up to 133MHz DDR bus, again using 133MHz SDRAM (not DDR) or 100MHz SDRAM.

The fastest and most common DDR memory runs at 133MHz DDR = 266MHz. The reason for the C type Athlon was to 'match' the speed of the memory with the bus speed of the chip, on the new AMD760 boards, more recently implemented by the VIA KT266 and ALi MaGiK chipsets. However, benchmarks show these to be substantially slower than the AMD760 solution.

Go for the 266MHz FSB regardless, because even if you don't want DDR now, it still has higher speed (and you will notice this even when using 133MHz SDRAM), and you can always upgrade to faster DDR by swapping your motherboard and DIMMs at a later time.

~ I know the human being and fish can coexist peacefully ~
 
G

Guest

Guest
so, i need to get a mob that are a "A" type and a processor that are a "A"? now i understand how they get a 100mhz fsb to be 200fsb. somebody says 100 somebody else says 200fsb...
it can use 200mhz fsb because the 100mhz fsb are using double data rates... ok! thanks for the help.

but i still need some more info abut ocing the processor? (how high it can go) i noticed at the A7V specs that it only supports athlons/durons 550~1000mhz, does this mean that the CPU i get are the max. for the board?
 

kurokaze

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Mar 12, 2001
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this is what I got:

Asus A7V133,
Athlon 1Ghz 200Mhz FSB AVIA

I can run my processor up to 133Mhz (266 FSB) without
any problems. Therefore, get the 200 FSB version and
overclock :)
 

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