devilhunter Posted May 8, 2015 Share Posted May 8, 2015 Bought an Alienware 18 recently for a good price, I always get lucky with GPU silicon lottery, but insanely unlucky with CPUs generally speaking. I managed to run my stupid 4940mx 4.2Ghz @ 1.21v. I would like you guys to comment on my results and confirm whether my chip is an absolute garbage or actually providing reasonable overclocking capabilities. Anyways, here is my XTU settings, and my core temp throughout the run. Thanks you. upload jpg imagehost Quote Link to comment Share on other sites More sharing options...
Boy_1da Posted May 8, 2015 Share Posted May 8, 2015 what are your xtu benchmark results? (the picture you attached only shows your xtu settings.)I've been strongly considering buying a 4940MX to replace my 4810MQ. Quote Link to comment Share on other sites More sharing options...
devilhunter Posted May 8, 2015 Author Share Posted May 8, 2015 Ok, this sounds extremely stupid but I figured out whats going on here. I notcied that the exhaust air of my 880m gpus are actually hotter than my cpu; for example, if both my cpu and gpu are running @ 80C, the exhaust fan of the gpu is hotter. This means that the heat is no longer traped inside and actually is being transferred to the air. Also, the gpu sink is noticeably hotter than the cpu sink! My conclusion is that for some stupuid reason, the sink is not making a good contact to the die! meaning I must find a good "thick" type paste, or somehow minimize this gab. Please help guys currently im running my stupid machine at 4.2Ghz @ 1.215v Max temp is 90-92 under cpu stress loads. - - - Updated - - - what are your xtu benchmark results? (the picture you attached only shows your xtu settings.)I've been strongly considering buying a 4940MX to replace my 4810MQ. Quote Link to comment Share on other sites More sharing options...
dune dune Posted May 8, 2015 Share Posted May 8, 2015 I really don't know why BIOS settings are locked for most powerful PC ..... if the overclocking was a dangerous for user warranty so why wasting our money Quote Link to comment Share on other sites More sharing options...
Khenglish Posted May 9, 2015 Share Posted May 9, 2015 CPUs always have a much higher differential between the die and heatsink than GPUs. This is because GPUs are bigger and put out heat relatively evenly across the die, while CPUs are smaller and have hot spots. Around 15C extra temp differential on a CPU vs a GPU is normal. 1 Quote Link to comment Share on other sites More sharing options...
MrAngry Posted May 9, 2015 Share Posted May 9, 2015 what are your xtu benchmark results? (the picture you attached only shows your xtu settings.)Be careful with the XTU benchmark, it is strongly affected by RAM. For instance my i7-4700MQ would run about 840 with 1600MTS CL11, changing BIOS timings to 1866MTS CL12 scores over 900. I've been strongly considering buying a 4940MX to replace my 4810MQ.If you are looking for something stronger than the 4810MQ then make sure you have plenty of thermal headroom (cooling) to accommodate it. Quote Link to comment Share on other sites More sharing options...
lane54674 Posted June 10, 2015 Share Posted June 10, 2015 It took me 1.22v to stabilize 4.2Ghz and 1.28v to stabilize 4.3Ghz of 4940mx in my Dell M6800. I think your voltage is not bad. Even though I used liquid ultra, I still suffer from thermal throttling when clock is over 4.1Ghz under XTU stress test. Quote Link to comment Share on other sites More sharing options...
juliux Posted June 13, 2015 Share Posted June 13, 2015 It took me 1.22v to stabilize 4.2Ghz and 1.28v to stabilize 4.3Ghz of 4940mx in my Dell M6800. I think your voltage is not bad. Even though I used liquid ultra, I still suffer from thermal throttling when clock is over 4.1Ghz under XTU stress test."It really worth the effort? Quote Link to comment Share on other sites More sharing options...
mw86 Posted July 26, 2015 Share Posted July 26, 2015 It took me 1.22v to stabilize 4.2Ghz and 1.28v to stabilize 4.3Ghz of 4940mx in my Dell M6800. I think your voltage is not bad. Even though I used liquid ultra, I still suffer from thermal throttling when clock is over 4.1Ghz under XTU stress test.1.28 or just over if you have your ram running really fast rates is accurate. XTU is a heavy bench so it requires more than most to stabalize. 4.3-4.4 ghz on Haswell can actually be really fast even compared to desktop counterparts on air cooling. Quote Link to comment Share on other sites More sharing options...
bhupsta Posted April 28, 2021 Share Posted April 28, 2021 I too have an Alienware 18 very bad in cooling cannot overclock temps 80c repasted thermal etc still issues. Think it is related to the fan crippling by Dell Quote Link to comment Share on other sites More sharing options...
hope Posted September 7, 2021 Share Posted September 7, 2021 https://www.newegg.com/thermal-grizzly-liquid-metal/p/2MB-0048-00036 Quote Link to comment Share on other sites More sharing options...
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