KalEl wrote:
You gave me an idea. Buy a bottom cover from an alienware 17 r4....cut the vent portion out, slap it on the back of the gl702vs...I do wonder if it would fit. You can get a used bottom cover for $20 on ebay. I bought one and am going to see if I can do something with it. Hoping it would look something like this:
Ok so I finally got this done after all this time. I made a huge cut out in the back, double taped the alienware backing on temporarily to see temp improvements. I found I wasn't seeing much improvements at all with the vents and the laptop sitting flat on the desk. I then bought the coolermaster t3 plus laptop cooler and put noctua fans on it, and modded the included fan controller to work with the noctua fans to shoot cool air directly into those vents. This made a huge difference. It appears to do the job real well thus far and my temps are stable without undervolting and leaving the cpu performance state at 100%.. I also found that adding a nice layer of thermal paste and really rubbing it in on the heat sink side first seemed to have solved these crazy deltas in cpu temps I was getting. Could of also been a poor mount on it, I tried to straighten out the flimsy copper that could possibly cause the heat sinks to not sit flat.
With all this, and running the laptop cooler fans, I am able to to get a noticeable reduction at load probably greater than 10-15c, so much so, that I notice the intel turbo is able to hold throughout the uningine benchmark with multiple runs. Of course uningine is not that cpu bound. I still got to try other games but I think I finally solved this. We need to turn it into an alienware lol. Going to add some glue to make it permanent, along with some kind of dust filtering for the vents. But I'm really happy with the results thus far and I was about to throw in the towel on this thing. I tested holding the laptop with the vent and it isn't as sturdy...but sturdy enough to hold. Definitely a huge improvement with this mod and the laptop cooler. My idle temps use to be 43...it now sits at around 38. Load temps could get up to 85 after prolonged gaming. Now it is high 60s to lower 70s...keep in mind this is no undervolting, and allowing turbo and 100% cpu processor state...not using vsync either.
I have a Asus ROG GL502VM with Intel Core i5-6300HQ and Nvidia Geforce GTX 1060 6GB. I also noticed high temperatures when gaming: two hours of Deus Ex Mankind Divided got some weird graphical glithces, which really woke me up to how hot laptop was :eek: I have laptop Pure C-Stand, so it has good 20 mm clearance for incoming air on bottom, but that not help. I feel very disappointed for ASUS technical quality & design on this temperature point, laptop is burning too hot, how they dare to release such incomplete product 😞
I tested temperatures with back cover on & off:
So without back cover temps drop CPU 7 degC and GPU 6 degC - I also conclude that back cover vents are restricting the airflow too much. I'm planning to do that back cover mod, drill more vents for cooling fan positions, so can then see how much it helps with air flow & temps.
UPDATE Cover-mod made.
I made 21x 3mm hole pattern on bottom cover, one pattern on top of each fan. It had no effect on actual temperatures yet, but I saw with HWiNFO that my CPU Package Max Power was higher under stress test: value rise from 39,6 W to 42,6 W. That might tell that thermal throttling was not activated because cooling was more effective? Also that cover mod already reduced fan noise when gaming. I'm planning to make more holes to pattern, to see if that helps to lower the temps too, update my hole pattern to 37x 3,5mm holes. I calculated that the surface area of 37x 3,5mm holes are about 33% of cooling fan blade rotation area, so it may take 1/3 of air through modded holes and half through original vents... See the results then 🙂
UPDATE2 Cover-mod rev2.
Okay I think I'll continue more slowly, so I updated pattern to 37x 3mm holes (their area ~24% of fan blade rotation area). Max temps top still the same, but stabilating to CPU 83 C and GPU 73 C. Max Package Power 42,8 W. I'll think this may be good point to stop, because temps stabilating lower now and air is still going through original vents too.
Below is also a picture of my hole pattern (dimensions in millimeters), so feel free to use as drilling guidance if you are using hand drill machine.
I tested temperatures with back cover on & off:
- Back cover ON, CPU=88 C, GPU=75 C
- Back cover OFF, CPU=81 C, GPU=69 C.
So without back cover temps drop CPU 7 degC and GPU 6 degC - I also conclude that back cover vents are restricting the airflow too much. I'm planning to do that back cover mod, drill more vents for cooling fan positions, so can then see how much it helps with air flow & temps.
UPDATE Cover-mod made.
I made 21x 3mm hole pattern on bottom cover, one pattern on top of each fan. It had no effect on actual temperatures yet, but I saw with HWiNFO that my CPU Package Max Power was higher under stress test: value rise from 39,6 W to 42,6 W. That might tell that thermal throttling was not activated because cooling was more effective? Also that cover mod already reduced fan noise when gaming. I'm planning to make more holes to pattern, to see if that helps to lower the temps too, update my hole pattern to 37x 3,5mm holes. I calculated that the surface area of 37x 3,5mm holes are about 33% of cooling fan blade rotation area, so it may take 1/3 of air through modded holes and half through original vents... See the results then 🙂
UPDATE2 Cover-mod rev2.
Okay I think I'll continue more slowly, so I updated pattern to 37x 3mm holes (their area ~24% of fan blade rotation area). Max temps top still the same, but stabilating to CPU 83 C and GPU 73 C. Max Package Power 42,8 W. I'll think this may be good point to stop, because temps stabilating lower now and air is still going through original vents too.
Below is also a picture of my hole pattern (dimensions in millimeters), so feel free to use as drilling guidance if you are using hand drill machine.
