Originally posted by: Shimmishim
Originally posted by: wicktron
Originally posted by: JustStarting
Originally posted by: wicktron
To the air-cooling crowd:
Shuttle AN50R rocks. Built a system for a homie and got 2.4GHz at 1.7v, not quite as impressive as Shimm's 2.5GHz at 1.7v, but hey, it's on air 🙂. Air cooled with Zalman CNPS7000A-AlCu, temps in the upper 40's at load.
How high does Vdimm go??
2.9v without mods, up to 5v with mods (VDIMM runs through +5v rail). I wouldn't go past 3v on A64 though.
The reason a bunch of A64's are dying is because of high VDIMMs. I haven't heard of any cases of high VCORE deaths yet.
the reason people's a64 are dying is because they are using the bios to change their voltage. so people are trying to set 2.9 vdimm as 3.1. what happens when people change the vdimm to 2.9 is is that they get 3.1 but they get crazy vdimm spikes. someone reported getting a spike of up to 3.8.
so the way to fix this is to set the vdimm to auto and use the vr's to adjust the voltage.
mine is set to exactly 3.0 right now but i've had it as high as 3.4 trying to get my bh-5's stable at 250 mhz @ 2-2-2-6