-
Hi. My first post here
I wrote small utility , you can grab it here:
http://users.yubc.net/~lukija/A64Info.rar
It is still unfinished, untested .... works well on my Winchester. Use it on your own risk. Yes, i know, it has stupid name (A64Info)
You can tweak some values like in A64Tweaker and it also has built in calculator which calculates memory speed and I used Oskars table as a starting point.
But, I have one question regarding undocumented dividers. For example 180 ( from the DFI point of view). I'm not sure if it is 183.0 MHz or 183.33..... MHz. According to the table, it is 183.0 MHz. For example, you have 2200 MHz CPU (200 MHz x 11). And use 180 divider on DFI. If we look at the table or use calculator in A64Info we get divider 13 and memory speed of 169.23 MHz. But if we assume that 180 divider implies 183.33..... MHz then we get 12 divider and exactly 183.33..... MHz. It seems logical to me. It would be interesting to measure memory bandwidths in these two scenarios:
1) CPU Speed 2200MHz (220 MHz x 10). Using 166 divider we have 12 memory divider which finally gives 183.33 MHz memory speed. Measure bandwidth using Sandra or Everest. This bandwidth will be used as reference.
2) CPU Speed 2200MHz (200 MHz x 11). Using 180 divider we have:
a - 13 divider (if we assume thah upper limit for memory speed is 183.0 MHz) and memory speed of 169.23 MHz
b - 12 divider (if we assume that upper limit for memory speed is 183.33... MHz) and memory speed of 183.33... MHz
Comparing measured bandwidth in case 2 with one measured in case 1, we could see what is upper limit. If bandwidth in case 2 is equal (+/- few MB/s) to one in case 1 we can say that upper limit is 183.33... Mhz. If bandwidth in case 2 is lower ( because of 14 MHz lower memory speed) then one in case 1 we can say that upper limit is 183.0 MHz.
Required: CPU with at least 11 multi, mobo with 180 divider, Sandra, Everest.
Any ideas, suggestions, comments?
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
Bookmarks