Artikel >> overclock

Overclocking is the process of making a computer or component operate faster than specified by the manufacturer by modifying system parameters. One of the most important techniques is running at a higher clock rate (more clock cycles per second; hence the name "overclocking"), but other parameters, such as CPU multiplier and memory timings, can also be changed and would be considered to be overclocking. Operating voltages may also be changed (increased), which can increase the speed at which operation remains stable. Most overclocking techniques increase power consumption, generating more heat which increases temperatures and must be carried away.
The purpose of overclocking is to increase the operating speed of given hardware. The trade-offs are an increase in power dissipation and fan noise, operation which can become unreliable if the equipment is overclocked too much, and the risk of damage due to excessive overvoltage or heat generation. In extreme cases costly and complex cooling (e.g., water-cooling) is required.
Conversely, underclocking trades off slower operation to reduce power consumption and temperature, cooling requirements (and reducing the number and speed of fans makes for quiet operation) and, where relevant, increase battery life per charge. Some manufacturers underclock components of battery-powered equipment to improve battery life.
The speed gained by overclocking depends largely upon the application; benchmarks for different purposes are published. In some cases there is a simple speed gain and saving of time; in others a certain speed may be required for correct operation, as in displaying high-resolution video and playing games with fast action. The numerical gain varies, but is often of the order of 20%.
Many people just overclock or 'rightclock' their hardware to improve their performance. This is practiced more by enthusiasts than professional users seeking an increase in the performance of their computers, as overclocking carries risks of less reliable functioning and damage. There are several purposes for overclocking: for professional users overclocking allows pushing the boundary of professional personal computing capacity therefore allowing improved productivity or allows testing over-the-horizon technologies beyond that possible with the available component specifications before entering the specialized computing realm and pricing - this leverages the manufacturing practice to specify components to a level that optimizes yield and profit margin, some components are capable of more; there are also hobbyists that, like car enthusiasts, enjoy building, tuning, and comparison racing their systems with standardized benchmark software. Some hobbyists purchase less expensive computer components and overclock to higher clock rates in an attempt to save money but achieve the same performance. A similar but slightly different approach to cost saving is overclocking outdated components to keep pace with new system requirements, rather than purchasing new hardware. If the overclocking stresses equipment to the point of failure, little is lost as it is fully depreciated, and would have needed to be replaced in any case.
Computer components that may be overclocked include processors (CPU), video cards, motherboard chipsets, and RAM. Most modern CPUs increase their effective operating speeds by multiplying the system clock frequency by a factor (the CPU multiplier). CPUs can be overclocked by manipulating the CPU multiplier, and the CPU and other components can be overclocked by increasing the speed of the system clock or other clocks (such as a front-side bus (FSB) clock). As clock speeds are increased components will ultimately stop operating reliably, even if voltages are increased to maximum safe levels, or fail permanently; the maximum speed is determined by overclocking beyond the point of instability, then accepting a slightly lower setting. Components are guaranteed to operate correctly up to their rated values; beyond there different samples may have different overclocking potential.
CPU multipliers, bus dividers, voltages, thermal loads, cooling techniques and several other factors such as individual semiconductor clock and thermal tolerances can affect the speed, stability, and safe operation of the computer.

Mengembalikan Data yang Terkena Virus Shortcut

Ketika kita membuka flashdisk dan ternyata isinya folder-folder shortcut saja, dan ketika dibuka data kita kosong semua. Padahal datanya semua adalah data penting, bagaimana mengatasinya??

Kalau anda mengalami seperti hal di atas, sudah jelas flashdisk anda terkena virus shortcut. Tapi tenang, don't panic!!! :D Kita bisa mengembalikan data-data yang terkena virus shortcut tadi. Ikuti langkah-langkahnya di bawah ini :

1. Masuk ke Command Prompt dengan cara Klik Start lalu pilih run kemudian dalam kotak run anda isi dengan CMD

2. Setelah jendela Command Prompt keluar maka selanjutnya anda tinggal ketikkan drive flashdisk anda diikuti dengan tanda : (titik dua), misalnya drive flashdisk anda E maka anda ketikkan E: lalu tekan enter.

3. Kini anda berada di dalam drive flashdisk anda, kemudian anda ketikkan dir lalu tekan enter kemudian lihat hasilnya sudah muncul atau belum file yang anda cari?

4. Jika sudah terlihat maka langkah selanjutnya adalah ketikkan:
attrib –s –h –r /s /d lalu enter (ingat…!!! Ketik persis seperti disamping jangan lupa spasinya juga) tunggu beberapa detik setelah muncul drive flashdisk pada jendela Command Prompt anda misalnya E:> maka proses pengembalian file atau folder telah selesai.

5. Ketikkan exit lalu enter (untuk keluar dari CMD)

6. Terakhir Masuk ke My Computer lalu buka flashdisk anda dengan cara klik ganda, maka Insya Allah file beserta folder dalam flashdisk anda sekarang telah kembali.

Untuk mengembalikan data yang hilang karena virus shortcut pada komputer, lakukan hal yang sama dengan masuk ke CMD dan setelah itu menuliskan drive-nya, yang akan dikembalikan datanya, misal di C, D, atau yang lainnya sesuai drive di komputer anda.

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