blake novak semester 2 presentation on overclocking and heat
TRANSCRIPT
Overclockingmaking your computer faster with magic.
What Is Overclocking ?Overclocking refers to pushing your computer components harder and faster than the manufacturer designed them to go.
Risks
Risks1. Overclocking = Heat
Overclocking invariably produces more heat due to increased power consumption leading to a decreased life of the CPU.
Risks2. Part Compatibility.
Overclocking Creates a higher bus speed for all the parts involved. By making this speed faster than intended, you are at risk of hurting all parts involved.
Risks3. System Instability.
Your system may not be able to handle overclocked parts to the degree that you want it to. This can lead to your computer outright crashing or worse, dying.You are Pushing more power through your system than intended.
Risks4. Data loss.
When your parts are operating at a higher clock speed than intended, your processor is not functioning “properly”. This puts you at a risk of potentially damaging the structures of your hard disk's file system.
Risks5. Works today... Maybe not tomorrow
Your system is not running at intended speeds, so even if you are at a stable clock speed, you still are at risk of losing everything.
Risks1. Overclocking = Heat2. Part Compatibility3. System Instability4. Data Loss5. No Guarantees
Benefits?
Benefits?“You are simply pushing components to faster than factory speeds, at the cost of heat and power. You gain performance in doing so.”
Benefits?“You are simply pushing components to faster than factory speeds, at the cost of heat and power. You gain performance in doing so.”
Performance increase is relative.
How to Overclock
Overclocking Flow Chart with Values
Overclock is known as OC; it is an action performed by the user. To overclock means to increase the speed, also known as the clock rate, of a component so it performs faster than its standard specifications. In the same manner, underclocking decreases the speed of the component so it performs slower.
The central processing unit, or CPU, can be described as the “brain” of the computer. Much like a human brain, it takes in all kinds of information, processes it, and gives out instructions to the rest of the computer.
The motherboard, or MB, can be described as the “body” of the computer. Here, many components are connected like the CPU, memory, etc. Random access memory, or RAM, can be described as the “memory” of the computer. It temporarily stores data that the CPU and other components need to
access. Data can only be stored when there is power, i.e. when the computer is turned off, there is no data stored. The Hard disk drive (HDD) or solid state drive (SSD) can also be described as the “memory” of the computer. It stores all sorts of data that stays on the drive
regardless if there is power or not. DDR SDRAM is known as double data rate synchronous dynamic random access memory, and it refers to a specific type of RAM technology commonly found
in computers. DDR3, DDR4, etc. are all variants based on the DDR SDRAM technology. DIMM is known as dual-inline memory module, and it is the technology that allows multiple RAM chips to be integrated on a single memory module that
allows for high capacity yields. The graphics processing unit, or GPU, is a chip dedicated to processing specific information, most often graphical information, and it the “external
communications port” of the computer. The GPU usually comes in the form of a card that plugs into a Peripheral Component Interconnect (PCI) port, or a Peripheral Component Interconnect Express (PCIe) port found on the motherboard, although it is also common that the GPU is integrated into the motherboard. PCI is obsolete ports for connecting GPU cards, and the standard port is now PCIe.
The basic input-output system, or BIOS, is the firmware for computers. Firmware is what connects the hardware and software together; it is the “middle-man”.
The Power-on Self Test, or POST, tests the various components of a computer before loading the operating system. It happens every time you restart, reset, or turn on the computer.
OS stands for operating system. Linux, Windows, Macintosh, etc. are all different types of operating systems. Bottleneck is the computer equivalent term to a traffic jam. While there will always be one component that is slower than all other components in the
computer, a bottleneck occurs during relatively high-intensive tasks when a component is unable to keep up with other components, causing a massive performance decrease because the other components must wait a relatively long time for the slow component.
Vocabulary
Vocabulary
Vocabulary
The power voltage supplied to the CPU, GPU, or other device containing a processing core.
Vocabulary
The power voltage supplied to the CPU, GPU, or other device containing a processing core.
Enables the processor to run above its base operating frequency via dynamic control of the CPU's clock rate.
Vocabulary
The power voltage supplied to the CPU, GPU, or other device containing a processing core.
Enables the processor to run above its base operating frequency via dynamic control of the CPU's clock rate.
Operating System
Vocabulary
The power voltage supplied to the CPU, GPU, or other device containing a processing core.
Enables the processor to run above its base operating frequency via dynamic control of the CPU's clock rate.
Operating System
The frequency the CPU is running (~100mhz).
Vocabulary
The power voltage supplied to the CPU, GPU, or other device containing a processing core.
Enables the processor to run above its base operating frequency via dynamic control of the CPU's clock rate.
Operating System
The frequency the CPU is running (~100mhz).
100Mhzx44 ratio4,400Mhz = 4.4 Ghz
What about the GPU ?
What about the GPU ?● Different from CPU OCing
What about the GPU ?● Different from CPU OCing● Most applications don't benefit from increase
What about the GPU ?● Different from CPU OCing● Most applications don't benefit from increase● “Artifacting” voltage limitations.
Difference between CPU & GPU1: Architecture
Difference between CPU & GPUCPU:
Difference between CPU & GPUCPU: GPU:
Difference between CPU & GPU2: Benefits
Difference between CPU & GPU● <15% performance increase from stock
clock to OC (~50% clock speed increase).● Program performance will be impacted
minimally.
Difference between CPU & GPU● <15% performance increase from stock
clock to OC (~50% clock speed increase).● Program performance will be impacted
minimally.● Program performance is relative to the
program.
Difference between CPU & GPU3: Artifacting and limitations.
Difference between CPU & GPU● Artifacting is when semiconductors are
clocked too high, so transistors will not switch reliably, flipping bits.
Difference between CPU & GPU● Artifacting is when semiconductors are
clocked too high, so transistors will not switch reliably, flipping bits.
● This can distort color and geometry information.
Difference between CPU & GPU● Artifacting is when semiconductors are
clocked too high, so transistors will not switch reliably, flipping bits.
● This can distort color and geometry information.
● This is caused by Overclocking too far, and is a sign of a dying card.
Difference between CPU & GPU
Difference between CPU & GPU
Courtesy of PCMAG
Difference between CPU & GPU
Benchmarks:
Benchmarks:Benchmark: “A point of reference from which measurements may be made and assessed.”Merriam-Webster
Benchmarks:● LuxMark● PassMark● AIDA 64
○ Single Double PFP○ Double Precision Floating Point
● 3DMark 11
Benchmark Results
comparison
Results
3D Mark 11
11843 12188
1362812828
Single Precision FLOPS
509
610 612599.5
Double Precision FLOPS
253299.9 304 296
19053
21338
21785
21675
SP/DP Julia/Mandel fractals
186.2 / 95.4
158.3 / 84.7
187.6 / 92.5
176.4 / 92.5
4670.5
4993.8
5003.7
5006.6
Compression
10100
10098
10147
10168
AnalysisAir: Easiest solution with best price:performance.
AnalysisLiquid: Harder to setup, but delivered results at good temperatures, leading to less sound, and a lower ambient temperature.
AnalysisOil: Very hard to setup, delivered best sound suppression and best aesthetically, with good temperatures.
Final Thoughts● Learned through experience
Final Thoughts● Learned through experience● Opened doors for experiences
Final Thoughts● Learned through experience● Opened doors for experiences
○ Cooler Master Case Mod Competition
Final Thoughts● Learned through experience● Opened doors for experiences
○ Cooler Master Case Mod Competition○ Opened doors to internships
Final Thoughts● Learned through experience● Opened doors for experiences
○ Cooler Master Case Mod Competition○ Opened doors to internships
● Connections
Final Thoughts● Learned through experience● Opened doors for experiences
○ Cooler Master Case Mod Competition○ Opened doors to internships
● Connections● Expanding Interests
Questions ?
