redirect303 Posted October 25, 2017 Share Posted October 25, 2017 Hello everybody, I'm trying to squeeze some more power from my laptop (Dell Precision M6800 with i7 4900MQ), using XTU, but until now I only got modest improvements. First of all: this is my first overclocking ever; I proceeded only after I documented myself to understand at least the basics of what I do, but still OC is still a big gray area for me; I wrote on this forum only after I realized that google couldn't provide consistent and comprehensive information, so please I would appreciate helpful replies. What I did: ------------- -I increased the multiplier with one level (from 38x; 37x; 36x; 36x to 39x; 38x; 37x; 37x) -I reduced the Core Voltage Offset to -0.100V -Gradually increased the Core Voltage, but it seems the best performance was when the Core Voltage was left on Default... *also, any other value of the Core Voltage Offset was only reducing performance. Obs: My cooling is good, the CPU never goes in thermal throttling. It stays between 70-85 on max load. So, what I don't understand: -------------------------------- 1. why UNDERVOLTING helped and increasing Core Voltage did not much help? 1a. why the "magical" -0.100V undervolting has so big effect and anything else around just ruins things? 2. what is the correct order of altering settings for overclocking? 3. when (and how) the Cache Ratio / Cache Voltage / Cache Voltage Offset should be altered? 4. I am getting a lot of Power Limit throttling, is that normal? (should I aim for a specific graph pattern, what is good and what is not good in how cpu performs?) * There is a big chance that even my questions are not the right ones to ask, so I pledge to anyone willing to offer some help, if you think I should approach this in a specific manner, I will take any help you can offer. Many thanks. Quote Link to comment Share on other sites More sharing options...
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