Athlon 64 Memory Clocking

• MHz CPU of final performance: divisor = always 200, on the basis of default clocking.

Processor CPU list incl. new CPU: Diego AMD San, Manchester and Toledo CPU core.
Der Venice Kern CPU reiht sich nahtlos in die Liste ein, da keine neue Produktbezeichung. 

1.8 GHz Multi and Divisor 9 Athlon 64 3000 +
2.0 GHz Multi and Divisor 10 Athlon 64 3200 +
2.2 GHz Multi and Divisor 11 Athlon 64 3500 +
2.2 GHz Multi and Divisor 11 Athlon 64 3700 + San Diego [1.024 KB L2 Cache]
2.4 GHz Multi and Divisor 12 Athlon 64 3800 +
2.4 GHz Multi and Divisor 12 Athlon 64 4000 + [1.024 KB L2 Cache]
2.6 GHz Multi and Divisor 13 Athlon 64-FX55 [1.024 KB L2 Cache]
2.8 GHz Multi and Divisor 14 Athlon 64-FX57, San Diego [1.024 KB L2 Cache]
All other types CPU in the list with [512 kB L2 Cache]
AMD Dual Core CPU X2:  
2.0 GHz Multi and Teiler 10 Athlon 64 X2 3800+ Manchester [1024 kB L2 Cache]
2.0 GHz Multi and Teiler 10 Athlon 64 X2 4000+ Toledo [2048 kB L2 Cache] 
2.2 GHz Multi and Teiler 11 Athlon 64 X2 4200+ Manchester [1024 kB L2 Cache]
2.2 GHz Multi and Teiler 11 Athlon 64 X2 4400+ Toledo [2048 kB L2 Cache] 
2.4 GHz Multi and Teiler 12 Athlon 64 X2 4600+ Manchester [1024 kB L2 Cache]
2.4 GHz Multi and Teiler 12 Athlon 64 X2 4800+ Toledo [2048 kB L2 Cache]
2.6 GHz Multi u. Teiler 13 Athlon 64 FX60, San Diego [2048 kB L2 Cache]

• Which AMD CPU's come when to the trade  
AMD Processor Road Map:  PDF Form 

Core CPU (Core) recognition:
Goes simply with the software CPU-Z [Link]
Or in the ending CPU Stepping ID, example: "ADA3000DAA4BW"
BI = Winchester
BP = Venice E3
BW = Venice E6
BN = San Diego E4
BV = Manchester E4
CD = Toledo E6

Memory Clocking Athlon 64 and Overclocking: 
Divisor = Original CPU Multiplier
CPU and Memory Clock: 200 
Ram divisor = divisor
CPU and Memory clock always 1 to 1 ratio to the reference CPU clock.
Memory Clock: 166
With default CPU Mhz: 166.66
Memory Clock:  133
With default CPU Mhz: 133,33

Memory divisor are rounded in principle on the basis of the synchronization upwards

   Example: 2200 MHz CPU with Memory clock 166.66 DDR333 from 13.2 to 14
   2200 MHz CPU with Memory Clock 133.33 DDR266 from 16.5 to 17

What happens with CPU Overclocking:  
The determined divisor RAM on the 200th basis always stays the same with overclocking.
2200 MHz CPU (Athlon 64 3500 +) also keeps with 2400 Mhz clocking a memory divisor
of 14 if 166 DDR333 clock is chosen in the Bios.
MHz of new 2400 ÷ 14 = 171.43 or 342.86 Mhz on a DDR333 Memory Bios setting. 
Who lowers the CPU multiplier for overclocking, please tries for itself from the scale
shown below the new memory divisor.
The purpose multiplier became 8 ×, in the Tab. at the top named with taken. 
There is not a real Athlon64 processor with this multiplier. This is only for example.
Multiplier 7 does not take part because there no reason is really clock so.

Then simply said table comes the following Memory Divisors for the application,
supplements with the CPU processor name and multiplier:

CPU Typ and Mem Divisor Setting in the Bios:

CPU Multi / divisor 200 / DDR400

divisor 166 / DDR 333

divisor 133 / DDR266

1.6 GHz Athlon 64, Multiplikator 8	8	10	12
1.8 GHz Athlon 64 3000+	9	11	14
2.0 GHz Athlon 64 3200+	10	12	15
2.2 GHz Athlon 64 3500+	11	14	17
2.2 GHz Athon 64 3700+ San Diego	11	14	17
2.4 GHz Athlon 64 3800+	12	15	18
2.4 GHz Athlon 64 4000+	12	15	18
2.6 GHz Athlon 64-FX55	13	16	20
2.8 GHz Athlon 64-FX57	14	17	21
2.0 GHz Athlon 64 X2 3800+	10	12	15
2.0 GHz Athlon 64 X2 4000+	10	12	15
2.2 GHz Athlon 64 X2 4200+	11	14	17
2.2 GHz Athlon 64 X2 4400+	11	14	17
2.4 GHz Athlon 64 X2 4600+	12	15	18
2.4 GHz Athlon 64 X2 4800+	12	15	18
2.6 GHz Athlon 64-FX60	13	16	20

• Supplementing scale: Memory at 183 and 140 Bios clock selection: 

Memory divisors like 1:2 are also found in the Bios instead of unambiguous memory clocks.
e.g.:  1:2, 2:3, 5:6, 1:1  
This stand in the order for 100, 133, 166, 200 Mhz Memory clock.

Now with the information one can calculate its current Memory clock in MHz with 
overclocking of the CPU with the Orig. Memory divisor determine.
CPU MHz a new X1 ÷ Mem divisor X2 = Bios Memory FSB by × 2 because it's DDR Mem
 = current Memory clock in Mhz 

   X1 = Current final performance processor CPU in Megaherz
   X2 = Memory Divisor from a.m. table (according to chosen Mem. setting)

If becomes no divisor RAM about orig. Multiplier CPU chosen, is the reference CPU clock
[FSB] always also like Memory clock.     Clocking by 1 to 1 ratio.

In addition: A Memory divisor under CPU multipler is most not possibly
Exception: You have a new CPU of the revision "E6" in the application which has a 
changed memory controller in the CPU. e.g., Venice CPU from the end of July, 2005, or.
San Diego CPU core. Support only by a few Bios versions for this new memory controller,
e.g., the DFI nForce4.

Excel Worksheet for automatically Memory [RAM] clock calculation in case of Athlon64 CPU overclocking.[Link] to Download Page

Help Scale - PC ID in Memory DDR Specifikation:
   PC2100 -> DDR 266
   PC2700 -> DDR 333
   PC3200 -> DDR 400
   PC3500 -> DDR 433
   PC3700 -> DDR 466
   PC4000 -> DDR 500
   PC4200 -> DDR 533
   PC4500 -> DDR 566
   PC4800 -> DDR 600
   PC5000 -> DDR 625
   PC5200 -> DDR 650 new by Partiot or OCZ

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