Q: |
Why does the DRAM speed will not match with the setting value in BIOS? (KN9, KN9-S, KN9-Ultra, KN9 SLI, Fatal1ty AN9 32X, AN9 32X) |
A: |
According to the AMD BIOS and Kernel Developer's Guide Ver 2.01, the actual DRAM frequency may vary for some speeds based on the CPU multiplier factor and other configuration options, as shown in Figure1.
BIOS DRAMConfiguration |
MultiplierFactor |
DDR400(200MHz) |
DDR533(266MHz) |
DDR667(333MHz) |
DDR800(400MHz) |
4 |
160 |
160 |
160 |
160 |
5 |
200 |
200 |
200 |
200 |
6 |
200 |
240 |
240 |
240 |
7 |
200 |
233 |
280 |
280 |
8 |
200 |
266 |
320 |
320 |
9 |
200 |
257 |
300 |
360 |
10 |
200 |
250 |
333 |
400 |
11 |
200 |
244 |
314 |
366 |
12 |
200 |
266 |
300 |
400 |
13 |
200 |
260 |
325 |
371 |
14 |
200 |
254 |
311 |
400 |
15 |
200 |
250 |
333 |
375 |
16 |
200 |
266 |
320 |
400 |
17 |
200 |
261 |
309 |
377 |
|
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