End Of The Line At 3.40 GHz
We continued to increase the core voltage, first to 1.475 V and then to 1.500 V.
We were able to boot the system at 3.40 GHz without a problem, and even run several benchmarks, but not all of them. At this speed, Prime95 - our standard when it comes to stability tests - would not complete its test run without errors.
If you use a water-cooling system, you may be able to reach higher frequencies still, since the core temperature is much lower than using normal air-cooling, giving the core a little more overclocking headroom.
A side view of the Athlon 64 X2 5000+ Black Edition.
When we tried increasing the clock speed beyond 3.4 GHz, the system crashed immediately.
Since the front-side bus is not overclocked, the chipset does not require additional cooling.
As the final entry in our overclocking logbook, we present you with a table detailing the combinations of multipliers, voltages and memory speeds of our overclocking tests with the 5000+ Black Edition:
|3.20 GHz||1.400 V||DDR2-800||16x||
|3.30 GHz||1.450 V||DDR2-733||16.5x|
|3.40 GHz||> 1.475 V||DDR2-755||17x|
The last of the four Black Edition stickers.