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The concept of cooling with oil has been demonstrated by amateur over-clockers before with cooking oil, likewise, oil cooling is frequently used with large power transformers found in substations and underground, where materials such a fibreglass and copper, key components in motherboards, are typically present. This time around, a year-long study has been performed by Intel with Green Revolution Cooling, revealing what enthusiasts and, with any luck, the industry, wanted to hear. Intel discovered that with oil cooling, datacentres were able to achieve some of the best efficiency ratings witnessed, resulting in effective cooling at a fraction of the cost when compared to air-cooling. A complete failure analysis was performed on components after a year, revealing that immersion in oil had no negative impact on component lifespans. So why is oil of such interest? Where enthusiasts are concerned, when the limits of air-cooling are reached, water-cooling is often the next step. Air is a poor conductor of heat and water offers a solution that will extract heat quickly from components and may be pumped, supplying cool fresh water. Water-cooling can be quite costly, however, requiring special heat-exchange blocks and a network of tubes. If water leaks, it can damage components as it conducts electricity. In an ideal world, one would simply immerse their entire computer in water, providing optimal cooling with no need for an internal tube network, with a large volume of the liquid offering superior heat dissipation and even cooling of each and every component. The conductivity of the water would, however, destroy the computer and, this is where oil steps in - offering much of the same benefits, without the nasty electrical conductivity. Intel's study, whilst first likely to affect the HPC market, goes one step to providing hard evidence that oil cooling is both effective and safe. This could spark changes in warranty terms covering the use of oil in over-clocking and eventually lead to oil-based cooling products. We can only hope! Sursa: Oil used to cool - not cook, Intel proves the concept - Cooling - News - HEXUS.net Parere personala: Lol, interesanta faza, e una din chestiile alea care te face sa zici "De ce nu s-a gandit nimeni la asta pana acum?"

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The Metropolitan Police have issued an urgent warning about a new ransom malware that is in circulation. Ransomware (also referred to in some cases as cryptoviruses, cryptotrojans or cryptoworms) comprises a class of malware which restricts access to the computer system that it infects, and demands a ransom paid to the creator of the malware in order for the restriction to be removed. Ransomware typically propagates like a typical computer worm, entering a system through, for example, a downloaded file or a vulnerability in a network service. The program will then run a payload which will begin to encrypt personal files on the hard drive. More sophisticated ransomware may hybrid-encrypt the victim's plaintext with a random symmetric key and a fixed public key. The malware author is the only party that knows the needed private decryption key. Some ransomware payloads do not use encryption. In these cases, the payload is simply an application designed to effectively restrict interaction with the system, typically by overriding explorer.exe in the Windows registry as the default shell, or even modify the master boot record, not allowing the operating system to start at all until it is repaired. We request readers to share this article with your friends on all social networks to alert them that this is a fraud and users are advised not to pay out any monies or hand out any bank details. Police advice - Modern ransomware attacks were initially popular within Russia, but in recent years there have been an increasing number of ransomware attacks targeted towards other countries, such as Australia, Germany, and the United States among others. In order to reduce the chances of being infected by this or similar malware we strongly recommend to use Some Best Antiviruses and never forget to update your software & potential vulnerabilities. source

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