[Todd Madson]

Is write through mode recommended or not for maximum throughput? I'm currently using it at 266 mhz [3:2] for the cache speed, backside cache is on, write through is off, speculative access is on. Should I change write through to on or keep it off?

[TimmyDee51]

According to Powerlogix, write-through mode make certain devices compatible. What that means and what those devices are I don't know, but it just seems like a compatibility issue. I don't have it turned on and I haven't had any problems (I believe the default is write-through off).

[Proteous]

For fastest proformance turn Write-through off.

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-There are three types of people, those who can count, and those who can't.-

[Kozmik]

Could you back that up, please?

[Proteous]

**Could you back that up, please?**

Sure, the differences are in the way that the cache handles writes. When in Write-Back mode, the default setting, also called Copy-Back, anything that is writen to a memory location that is already in the cache is only writen to the cache and not actually written to the system momory unless that space in cache is going to be used for something else.
While in Write-Through mode, a write to system memory that is currently also in the cache is writen to the cache and to the memory location.


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-There are three types of people, those who can count, and those who can't.-