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I have used a 3740qm cpu for a while. The processor is fast but the cooling system is not capable of keeping normal temperatures. Thanks every one for their personal cooling system modifications, really interesting. This 3740qm keeps x33 for all 4 cores till the throttling limit of 105°C. Arctic MX-4 used. Some notes/findings: 1. Docking station covers most of the fan air out vents artea, so this is a bad design for quad processors (even for high speed dual core). 2. The use of ThrottleStop software is unavoidable. You can choose the exact multiplier that keeps the system at a safe level, e.g. x27<80°C, x25<75°C etc. x12 can be a good choice when on battery to save some power. Presets can also be used to change automatically according to temperature levels. 3. It seems that the System will try to keep the 35W power draw for the CPU, so at x33 the ThrottleStop always shows less than 37W of consumption. 4. The 65W adapter might be then OK as the system always tries to use 35W. But keep in mind that when charging the battery and using all 4 cores at maximum could drive it on its limits. battery when empty will draw about 55W for charging then decrease the consumption gradually. It could then be a safe choice to use a smaller multiplier when charging an empty battery with less than 30% capacity. 5. Some external fan/air exhaust solutions that stick at the air vents can only help cooling down only at about 1-2°C. Other more common cooling solutions have to be used with the back cover off. Then the system can retain a good opportunity to hold temperatures below 90°C at full load 6. Keep in mind to reset bios to defaults when changing the CPU !! or there might be side effects. I would like to ask your opinion on those 2 fan products I have found, there is a possibility to work on this system with the back cover on! http://www.sunon.com/uFiles/file/03_products/08-catalog%20download/Sunon%20Mighty%20Mini%20Fan_(223-W).pdf Some how those can be powered with 5V, then glued on the heatsink, then some specific holes on the metallic back cover...

Hi, I've just joined after getting into what seems like a vat of molasses. Looking for a travelling laptop, small size and cheap in case it is stolen, I settled on a battered (Big dent in lid but working fine), HP 2540p for£65 off eBay. All went well until I found this forum telling me I had bought the wrong one for fiddling, [upgrades]. I love fiddling so looking again I came up trumps [no USA puns here], there is a German firm selling brand new still in HP boxes 2570p's for just €270 (£217) but with a German keyboard. A new UK keyboard from China (I suspect), was an extra £24 although fitting it was a trial of patience involving a very stiff upper lip. I found prising off the frame between the keys without bending it extremely taxing. My best solution was to use a lolly stick twisting it gently did the trick. Next time I pay more complete with a frame and keep my hair. I followed the recommendations on here gluing copper to the heat sink, whacking in giant Ripsaw (idiot name) RAM and an Intel WiFi card so I now connect to 5G even in deepest France. I have a 1Tb Hybrid SSD drive cloned with WIN7 32bit OS as supplied on the original HP drive. Upgraded to WIN10. Incidentally, if you download WIN10, burn a DVD it will still activate using the WIN7 CoA! This is when I seemed to be wading into the molasses. This is where it got me really bogged down. I bought a CPU Prozessor QuadCore Intel Core i7-3740QM 8x 2,7 GHz Socket FCPGA988 also from Germany. It won't fire up past an initial HDD lights on and a blinking cursor. Shikyo (must be careful with the name), is asking if this processor is compatible. So am I. I am very careful with handling processors so all the pins are erect and in line, due no doubt, to all the oysters I eat. I now wonder if the processor needs the OS to be 64bit to recognise the BIOS; I have updated the BIOS but to no avail. My problem was the computer refusing to allow WIN10 64bit and using the advice on line doesn't work for me. Either the Upgrade or OS says the computer isn't compatible although CPU-Z shows all the boxes are ticked and it is good to go. This machine is dancing along quite nicely on the i5 but now an expensive i7 chip seems to have activated article 50 prematurely. Computer says no. ANY advice out there to help would be appreciated. Regards, Brian.

yeah I'm pretty excited, i got most of these parts in already and am just awaiting the msi fan and the skived heatsink. My plan is to take apart the stock heatsink and remove the aluminum, then trim down the copper heatsink to 50x60mm to fit in the cpu area. I will be removing some unused black plastic from the cpu area from the case to allow more copper to fit. I have to also trim down most of the fins (to the red line height) and then weld the copper pipe on the top side of the heatsink once i notch out some fins to allow the center to be bare (area in red), either that or notch out a groove on the bottom to let it slide under like the stock heatsink. I figure more copper to make contact with is better, fins for cooling, and then mount the fan. For the fan to work, all i have to do is trim down the height just a tad as well as a little bit off the sides. My measurements say it should fit perfectly between the screws of the cpu socket and then just drill out a hold on the bottom lid. I'll also need to drill a few screw holes on the new heatsink to accept the fan, as well as find a way to power it. It's all in theory as of now but i hope it works. I'll keep yall posted. All this should fit fine once i add some new rubber feet that are a bit taller. That will give me some extra space to let that fan breathe under there. I finally got the new quad core installed and it's running very nice. I didn't know this but i found out turbo boost doesn't work on battery only plugged in. .