The RAM is DDR, which means that it gets two accesses on a single clock cycle. When it's running at 166mhz, it's effective data rate is twice that. 166mhz is the proper speed for PC2700 memory.
On your problem, I can't imagine how the memory size is affecting the power LED, since that's just a simple indicator wired directly to +5V. If it's really getting dimmer, I'd think you have a serious power supply issue!
On your problem, I can't imagine how the memory size is affecting the power LED, since that's just a simple indicator wired directly to +5V. If it's really getting dimmer, I'd think you have a serious power supply issue!
