Why lap a cpu

But that's not really it, people have tried this over and over and the results have varied from absolutely no change to maybe a couple of degrees. Question is, are you really that thermally limited such that this is the last option you have? If you thinks it's worthwhile go ahead.

A 5c difference wouldn't mean anything to me if I had no problems anyway such as thermal throttling or anything like that. And it's really unlikely that 5c will get you a higher overclock. Joined Jul 21, Messages 4, 0. It sounds like your mind is already made up? Why even make this thread. Joined Feb 6, Messages 1, 0. It's soldered Cpu.

Last edited: Apr 13, Joined Mar 17, Messages 8, 1. I'm leaving this site after this comment. I think this post really shows where TPU stands.

Stupid libs. Joined Jul 2, Messages 33, 6. Are the ihs soldered on for AMD? Joined Nov 22, Messages 28, 4. Joined Mar 10, Messages 9, 2. There is plenty of ventilation also. I am running the AMD R7 at 1. Clocked at 4. Temperatures are in the low 80's.

I saw a video by Der8uer also where he lapped a cpu and gain about -5c! Thats major in terms of cooling for overclocking. Joined May 28, Messages 4, 0. Not the quietest thing ever though, the rotary compressor on the second stage is a bit of a bad boy.

Heavy though, would cost a fortune to ship. A couple of years ago I read an internet article on a CPU cooler made from a modified window air conditioner. One of the mods was to disable the low temperature limit. Hummm, I never knew. I mean it never came up…. Never really thought about it until now. BobbyMac Yes, there has to be to prevent the coils from freezing solid in low-temperature or low refrigerant conditions.

The room temperature sensor is elsewhere. There are DIYs and even a prepackaged controller out there to turn an ordinary window AC into a walk-in freezer refrigeration unit, one of the steps of which is eliminating the low-temp limit. The CoolBot thing is pretty cool if I ever need a walk in. LinusTechTips have quite a few videos featuring a modified air conditioning unit, and there are even commercial products based on air-conditioners. It depends on what refrigerant you use, but if you are not operating all the way down to the boiling point, then the temperature depends on the difference between the hot and cold side of the pump.

The temperature difference increases while the pumped heat decreases, and the evaporator temperature settles to a point where the pumping power matches the heat load. So what you are saying is I am 10 years behind again and this is being done now?

If I could just remember half the stuff I knew I would be good. The road salt lowers the melting point of the ice to around … C and the TEC adds another C so you got to around C temperatures with this setup without having to mess around with compressors. Submerging the whole thing except the hard drive in a tub of Fluorinert then managing to chill to the point where the Fluorinert started to freeze.

Linus himself built a sub-zero water cooling rig out of a window air conditioner, over 10 years ago. His team rebuilt it in a prettier, more screen-friendly chassis this past spring. Basically you put the evaporator coil in a cooler, fill the cooler with degree rated windshield washer fluid, and use that as a gigantic reservoir for traditional water cooling parts. The problem is, you start getting condensation on the water blocks when you run that cold. Same as a cold glass on a hot day.

Jezz, just shut your eyes for a few minutes and nap — and all of this happens…. Condensation becomes your enemy when using any kind of chilled cooling.

I have a custom loop water cooling system and the only thing holding it back is the thermal transfer between the CPU and the waterblock. Regarding the temp of an AC unit output? If it gets too close to the freeze point, the water starts to cling and form an ice barrier and the exchange of heat drops off rapidly. This is why freezer units need to be kept closed as much as possible. You may need to direct some extra air flow into the unit so as to keep things dry.

Frost free refrigerators? Seems to me I recall they have small heaters built into the sides of the refrigerators for this. Look for the memory-timing settings in your BIOS tweaking menu. Your newly overclocked RAM will produce a lot of heat. Use a fan to keep it from overheating. Consider 2. But some seriously hard-core PC freaks spend about as much time tweaking their hardware as they do using it.

Having quick and easy access to components becomes a necessity for extreme tweakers who push their systems to the limit through overclocking, as well as for users who constantly swap out parts.

Also, placing the system in an open-air environment can greatly improve its operating temperatures and increase performance by allowing more overclocking headroom. The risks that come with a test-bench setup are potentially disastrous.

Since all of the hardware is exposed, the possibility of physical damage to your computer—and serious injury to you—increases exponentially. And moving from a normal, enclosed case to an open test bench is a little like stepping out of an amored car, stripping down to your skivvies, and hopping on a motorcycle.

The margin for error decreases to nil. Curious children or pets should not be allowed to venture near the computer and its naked parts. Luckily, you have a couple of good ways to set up an open-air test bench. If you have the time and the tools, you can build your own custom tech station with dimensions and features that fit your needs, using any old materials you have lying around; for ideas, see how one determined modder did it.

We recommend the Torture Rack for its sexy acrylic design and its ability to house water-cooling loops see the next page right out of the box. Now that you have a killer tech station sitting on your desk, component placement is vital to achieve superior results.

Set the motherboard on the top level for easiest availability. You can install gigantic CPU heat sinks without the hassle of removing the motherboard or working in an enclosed case. You can position additional fans quickly to help cool down the system during your grueling overclocking sessions.

Using a system installed on a test bench can be dangerous, but the benefits can definitely offset the risks involved as long as the computer remains in a controlled environment. Running water through your PC may sound crazy. Water cooling has long been an efficient method of cooling PC components, but most users are hesitant to take the plunge for several reasons.

Some point to the insanely obvious hazards of introducing water to electronic components. Thermal paste is a conductive material that fills in all the microscopic nooks and crannies in the IHS and heatsink, to facilitate a better transfer of heat. It works well for mass consumption, but as with most things produced at scale, there is room for improvement for those with the requisite knowledge, money, and time.

Enter the practice of lapping. If you look up lapping videos and articles, the vast majority of content is really glorified sanding. It involves hand sanding a CPU's IHS for a smoother surface, and having done this myself in the past, it can indeed lower temps by a few degrees. In doing so, he "created the flattest CPU in the world," by his estimation, "bringing a Ryzen 9 X to within 0.