[quote author=“Sol510”]Well I didn’t choose the X505 for speed, it is by no means the fastest (or even close to one of the fastest) laptop on the market
Considering the size of the X505 and the materials involved in the case, I wouldn’t find it surprising to hear that the X’s CPU ran a few degrees warmer than a TR’s.
Yes, X505 runs a bit hotter because there is no fan, but again as the Developers story says because of graphite sheet attached to the bottom of X505 and other materials used, heat is not a threat at all.
The perfect CPU performance with 2 level temperature control mechanism.
We have created 2 level setting “temperature control mode†and “performance mode†to control the internal heat condition, which users can select either one. The challenge was how to switch from each other mode. Users may feel the heat condition differently from somebody else. There is no standard how users may feel the heat or performance speed, thus creating the right setting for each mode was the tough part.
Heat reduction level, which users can adjust
One of the key elements of VAIO notebook X505’s extreme lightness and thinness was the fact that it is fan less, heat sync less design, which traditionally needed to remove the heat from the CPU or chipset.. Removing both mechanisms from the body made it possible to design such thin body, and a very quite notebook, suitable for a high end model such like X505.
A graphite heat reduction sheet was introduced to this fan less model. The fan less mechanism was last considered with the original 505 model, but as the technology of the CPU grew, it also created more heat that needed to be escaped outside the body. The new graphite heat reduction sheet transfers the internal heat towards the edge of the sheet and less towards upwards or downwards, which is how the heat generated inside the body was reduced. That is the main reason why there are no buttons at the upper space of the keyboard to feel the heat. Also since there are no key components under the keyboard, there are less concerns feeling hot while typing.
“At the beginning, I believed that even though we were able to create a fan less body, we still needed a heat pipe to reduce the heat created inside the body. Although, this was against the original design concept to make a light and thin computer. That is why we had considered using a heat reduction sheet made by graphite to distribute the heat evenly to the body surface. After a number of simulations, testing the material, thickness, size, we came to a point which we all agreed there was enough heat reduction with the new sheet†says Mr. Akira Iguchi, the software develop leader of VAIO notebook X505. Without an efficient heat reduction, the CPU performance will be reduced in order to reduce the heat inside the body. Although it is not much dangerous, depending on the usage situation, the upper part of the body does get hot.
Yep, I keep mine at 600 MHz, and it’s never gone above 50 degrees at room temperature now. Quite cool, and the absense of a fan keeps it extremely quiet, allowing me to use it at the Silent Study Rooms in the library. (Where even the noise of flipping a page is limited.)
