C.P.U Designs: April 2012

Wednesday, April 25, 2012

CPU Thermal Design Power

CPU Thermal Design Power Description
The thermal design power (TDP), sometimes called thermal design point, refers to the maximum amount of power the cooling system in a computer is required to dissipate. For example, a laptop's CPU cooling system may be designed for a 20 watt TDP, which means that it can dissipate up to 20 watts of heat without exceeding the maximum junction temperature for the computer chip. It can do this using an active cooling method such as a fan or any of the three passive cooling methods, convection, thermal radiation or conduction. Typically, a combination of methods are used. The TDP is typically not the most power the chip could ever draw, such as by a power virus, but rather the maximum power that it would draw when running "real applications". This ensures the computer will be able to handle essentially all applications without exceeding its thermal envelope, or requiring a cooling system for the maximum theoretical power (which would cost more but in favor of extra headroom for processing power).

CPU Thermal Design Power

#1008 - Cooler Master V8 CPU Cooler Video Review

#1003 - Scythe NINJA 2 CPU Cooler Video Review

CPU Design By Using VHDL

CPU Design By Using VHDL Description
Listing used user-programmable registers and different instruction formats used. Design the datapath (register level) of the CPU, including all components and control signal (pipeline datapath). Create a table listing all control signals and the values of each control signal required for the different clock cycles like fetch, decode, execute, etc. Develop and verify a VHDL model of the datapath of the CPU; coding, including each component used in the datapath, the top level and the connected control signal among them, and simulate the final test program. Simulate and test the program.

CPU Design By Using VHDL

VHDL versus SystemVerilog

VHDL PART2 - YouTube

CPU Design Description

CPU Design Description

A fair question to ask at this point is "How exactly does a CPU perform assigned chores?" This is accomplished by giving the CPU a fixed set of commands, or instructions, to work on. Keep in mind that CPU designers construct these processors using logic gates to execute these instructions. To keep the number of logic gates reasonably small, CPU designers must necessarily restrict the number and complexity of the commands the CPU recognizes. This small set of commands is the CPU's instruction set.

Programs in early (pre-Von Neumann) computer systems were often "hard-wired" into the circuitry. That is, the computer's wiring determined what problem the computer would solve. One had to rewire the circuitry in order to change the program. A very difficult task. The next advance in computer design was the programmable computer system, one that allowed a computer programmer to easily "rewire" the computer system using a sequence of sockets and plug wires. A computer program consisted of a set of rows of holes (sockets), each row representing one operation during the execution of the program. The programmer could select one of several instructions by plugging a wire into the particular socket for the desired instruction.

CPU Design

Lec-2 CPU Design-I

Intel tests chip design with 80-core processor

CPU Circuit Design

CPU Circuit Design Description
The first step in designing a CPU is to determine its applications.
We don’t need anything as complicated as an Itanium microprocessor to control a microwave oven; a simple 4-bit processor would be powerful enough to handle this job. However, the same 4-bit processor would be woefully inadequate to power a personal computer. The key is to match the capabilities of the CPU to the tasks it will perform.
Once we have determined the tasks a CPU will perform, we must design an instruction set architecture capable of handling these tasks.
We select the instructions a programmer could use to write the application programs and the registers these instructions will use.
After this is done, we design the state diagram for the CPU.
We show the micro-operations performed during each state and the conditions that cause the CPU to go from one state to another. A CPU is just a complex finite state machine. By specifying the states and their micro-operations, we specify the steps the CPU must perform in order to fetch, decode, and execute every instruction in its instruction set.

CPU Circuit Design

Minecraft redstone programmable cpu circuit
Fairchild Briefing on Integrated Circuits

CPU Casing Design

CPU Casing Design Description
.A computer case (also known as a computer chassis, cabinet, box, tower, enclosure,housing, system unit or simply case) is the enclosure that contains most of the components of a computer (usually excluding the display, keyboard and mouse). A computer case is sometimes incorrectly referred to metonymously as a CPU referring to a component housed within the case. CPU was a common term in the earlier days of home computers, when peripherals other than the motherboard were usually housed in their own separate cases.Cases are usually constructed from stee l (often SECC — Steel, Electrogalvanized, Cold rolled, Coil) or aluminium. Plastic is sometimes used, and other materials such as wood and even Lego blocks have appeared in home-built cases.

CPU Casing Design

Computer Case Design - Thermal Testing
In Win Matrix ATX Computer Case

AMD Processors Comparison

AMD Processors Comparison Description

We shall start our reviews with the amd e series processor review. The family which consists of the following processors from the AMD E-Series. These are the E-240 Codename Zacate , E-300 Codename Zacate , E-350 Codename Zacate , E-450 Codename Zacate , E2-3000M Codename Llano. This is advancement from the C-series family of processors thereby providing faster processor speed.
The main features of the e series processors are:-
The E-240 is a single core processor. It's mainly used in net-books and small notebooks. It has a 1 channel DDR3-1056 memory controller and an integrated graphics card the main features are: - 1.5 GHz processor speed, 512 KB L2 cache, Number of Cores / Threads=1 / 1
The E-300 is a dual core processor also made for use mainly in net-books and small notebooks. It also has a integrated graphics card but it's made of a 1 channel DDR3-1066 memory controller. the main features are:-1.3 GHz, 1MB L2 cache, Number of Cores / Thread=2 / 2.
The E-350 just like its predecessor it has a 2 core processor and is mainly used in net-books and small notebooks. It also has the integrated graphics card and has a 1 channel DDR3-1066 memory controller. However it offers faster speeds compared to its predecessor. the main features are: - 1.6 GHz 1MB L2 cache, Number of Cores / Thread =2/2.
The E-450 is also a 2 core processor used mainly for mini notebooks and net-books and offers a powerful graphics card but has a 1 channel DDR3-1333 memory controller. It's also slightly faster than its predecessor. the main features are:- 1.65 GHz, 1MB L2 cache, Number of Cores / Thread=2 / 2.
The E2-3000M is a 2 core processor and the most powerful in the E-series family of processors thereby can be used on entry level laptops. It has the ability to automatically over-clock from 1.8 GHz to 2.4 GHz. being part of the Accelerated Processing Units(APUs) it features an inbuilt ATI Radeon HD6380G graphics card:- 1.8Ghz-2.4Ghz, 1MB L2 Cache, Number of Cores / Thread=2 / 2
This makes the E2-3000M the fastest in the series and E-240 the slowest in the series. The E-series processors are mainly designed to handle graphics which increases the overall system performance.The processors are also designed to improve the overall power consumption of the machine being used.

AMD Processors Comparison

AMD processors vs Intel processors

Intel Vs AMD processor

AMD New Processors

AMD New Processors Description
AMD has outlined its new "Bobcat" microprocessor architecture for notebooks. It is an evolution of their current x86 architecture. Bobcat is very promising in the efficiency department; it will supposedly achieve 90% of the performance of current AMD mobile processors in a chip half physical size. It is also capable of running on less than one watt of power; entire areas of the CPU that are not being used can be disabled.

AMD New Processors

HC22-S7: New Processor Architectures

Fusion processor at Computex