MB / Memory for K6-2/333??

[ryanb]

I just aquired a k6-2/333. The chip itself does not specify 66 or 95 mhz, but the receipt from when my friend purchased it says 95 mhz.
If I put it into a MB with 95mhz FSB-what speed memory do I need? Can I run pc100 memory or do I have to use 66??
Is there such a thing as 95 mhz memory---where can I find it?

[Peter M]

The "PCxxx" ratings on DIMMs are just a "fast enough for xxx MHz" ratings. Use PC100 memory, and there you go.

If that K6-2/333 is marked /333AFR with no suffix after that, then it's a 95 MHz part. Run it at any one bus speed from 66, 83, or 95 MHz with the appropriate multiplier for 333 MHz. The 66-MHz-only parts are marked "-66".

Regards, Peter

[ryanb]

Thanks for the clarification on the chip speed---it is 95 mhz.

What you said above---"fast enough for.."

I can run the chip at 95 OR 66 mhz while running older 66 memory?

[dmcnamar]

I'm currently running a nominal k62 350 (3.5 x100) cpu at 333 (4x83) because I don't have any pc100 memory. I looked at the chips on my SDRAM module and they all ended with a "-10" which I believe means 10ns or 100Mhz. But my impression is the entire module is rated a step down from the individual chip rating, so I only went up to 83. If you wanted to be totally safe, you could run yours at 66 with a multiplier of 5 (if your mobo supports it) I'm sure Peter could tell us more about it.

dlm

[Peter M]

ryanb,

you can run the K6-2 slower than specified, on both ends. Run the core slower (which you don't have to), or run the bus slower.

But what you should do is use a mainboard with VIA MVP3 chipset. Most of these can run the memory off the AGP bus clock (which always is 66 or slightly below) while keeping the CPU bus and L2 cache at 95 or 100 MHz. The advantage in doing that is in the L2 cache bandwidth being a lot higher when at maximum speed (95 MHz in your case, AGP will be at 63 then).

dmcnamar, maybe you check if your board has that too. If so, then you can go back to 3.5x100 CPU core/bus yet still run your SDRAM at 66 MHz.

Regards, Peter

[dmcnamar]

Peter,

Alas, I don't have that option. Thanks for the suggestion though!

dlm http://www.sysopt.com/forum/smile.gif