overclocking guide pt 2

Rick G · 02-07-2004, 05:45 AM

4. System Environment

Motherboard,

CPU, and memories all produce heat under high frequency operation. It is very easy to cause the whole system to shut down by itself if the system is over heat. Therefore how to provide a cooler system environment also plays an important key.

CPU :

A CPU cooler is a standard accessory these days. A CPU heatsink made of copper and a CPU cooling fan with 6000+ rpm are strongly recommended for better heat reduction. Water cooling systems are also preferred by other extreme overclockers. Despite the risks of water cooling, for its better cooling environment plus the low noise operating environment, more and more users are switching to water cooling system today.

Memory;

Most memory manufacturers provide heatspreaders for their memory modules today. There are also heatspreaders sold separately available in the market for users who own memory modules that originally came without one. (Note: Copper made heatspreaders have better performance over aluminum made ones.)

Case / Case fans;

There must be enough space inside the case for air flow to present. It is recommended to install one or two more case fans to help the overall air flow so the hot air could be extracted out of the system/case and keep the whole system cool.

5. Power Supply Unit

Basic power needed is recommended to rate from 350W to 400W. More power is needed depends on other add-on components. More and more computers are being used as media station today. All kinds of performance enhancement interface (3D acceleration cards, professional purpose video cards, USB, DVD-ROM / Burner.. etc) have been introduced to the public continuously to meet market’s demand. All of these interfaces require

additional power supply. Therefore, when there is not enough power present, the performance of each hardware will not function properly and could cause serious instability and damage the system.

II. Basic Procedures;

Play with the BIOS;

When overclocking beyond hardware’s capable limit, it is very easy to cause the system to shut down and when adjusting voltage variables, such hardware could be damaged if voltage is set too high.

Enter the BIOS menu

STEP1 – CPU SPEED Adjustment; Advanced Menu;

1. When; CPU Speed is set to Manual;Users are allowed to set the CPU operating frequency manually. In general, CPU operating frequency = CPU frequency multiplier x Front Side Bus: Eg. P4 2.8 GHz could be obtained from 14 (multiplier) x 200 MHz (FSB) = 2.8 GHz. To play safe, it is recommended to increase the FSB frequency by intervals of 3MHz. It is also easier to determine where the limit of the system is this way.

2. When; CPU V Core Setting ;is set to ;Manual ;

Users are granted permission to give CPU more power in order to push the CPU to its limit. It is best recommended not to increase the CPU

VCore voltage by more than 0.15V to prevent sever damage to the physical CPU.

STEP2 – Memory DRAM Setting Adjustment ;Advanced Menu ;

CPU/ Memory Frequency Ratio ;

Set the CPU operating frequency and memory operating frequency to 1:1 ratio depends on the quality of the CPU and memory modules, not all can be run at the same frequency; change the ratio if necessary. Because each motherboard manufacturer provides different menus in their BIOS, individual user’s setting may vary. In general, DRAM frequencies are obtained as following – DDR 400 = 1:1, DDR 320 = 5:4, DDR 266 = 3:2 .. etc.

DDR Reference Voltage ;

This is DDR SDRAM’s operating voltage. It determines the range of voltage provided by manufacturer or by DRAM frequency. Higher DRAM frequency means higher voltage must be applied.

Chip Configuration ;

When this is set to ;User Define] users are allowed to change the speed timing as they desire within memory module’s capability. Less period timing means faster and better performance. However, there are risks to cause instability when timings are set too low. A good memory

manufacturer should provide performance related timing values for users reference. (Note: default setting is always set to ;By SPD ;which means the timing values are read directly from the memory module preset by the manufacturer.)

If the values are set too low, it may cause system to shutdown or reboot automatically. The motherboard will use the SPD setting it read from the module or previous manually set settings.

02-07-2004, 05:45 AM	#1 (permalink)
Rick G Gold Member Join Date: Jan 2004 Location: Las Vegas, USA Posts: 294	overclocking guide pt 2 4. System Environment Motherboard, CPU, and memories all produce heat under high frequency operation. It is very easy to cause the whole system to shut down by itself if the system is over heat. Therefore how to provide a cooler system environment also plays an important key. CPU : A CPU cooler is a standard accessory these days. A CPU heatsink made of copper and a CPU cooling fan with 6000+ rpm are strongly recommended for better heat reduction. Water cooling systems are also preferred by other extreme overclockers. Despite the risks of water cooling, for its better cooling environment plus the low noise operating environment, more and more users are switching to water cooling system today. Memory; Most memory manufacturers provide heatspreaders for their memory modules today. There are also heatspreaders sold separately available in the market for users who own memory modules that originally came without one. (Note: Copper made heatspreaders have better performance over aluminum made ones.) Case / Case fans; There must be enough space inside the case for air flow to present. It is recommended to install one or two more case fans to help the overall air flow so the hot air could be extracted out of the system/case and keep the whole system cool. 5. Power Supply Unit Basic power needed is recommended to rate from 350W to 400W. More power is needed depends on other add-on components. More and more computers are being used as media station today. All kinds of performance enhancement interface (3D acceleration cards, professional purpose video cards, USB, DVD-ROM / Burner.. etc) have been introduced to the public continuously to meet market’s demand. All of these interfaces require additional power supply. Therefore, when there is not enough power present, the performance of each hardware will not function properly and could cause serious instability and damage the system. II. Basic Procedures; Play with the BIOS; When overclocking beyond hardware’s capable limit, it is very easy to cause the system to shut down and when adjusting voltage variables, such hardware could be damaged if voltage is set too high. Enter the BIOS menu STEP1 – CPU SPEED Adjustment; Advanced Menu; 1. When; CPU Speed is set to Manual;Users are allowed to set the CPU operating frequency manually. In general, CPU operating frequency = CPU frequency multiplier x Front Side Bus: Eg. P4 2.8 GHz could be obtained from 14 (multiplier) x 200 MHz (FSB) = 2.8 GHz. To play safe, it is recommended to increase the FSB frequency by intervals of 3MHz. It is also easier to determine where the limit of the system is this way. 2. When; CPU V Core Setting ;is set to ;Manual ; Users are granted permission to give CPU more power in order to push the CPU to its limit. It is best recommended not to increase the CPU VCore voltage by more than 0.15V to prevent sever damage to the physical CPU. STEP2 – Memory DRAM Setting Adjustment ;Advanced Menu ; CPU/ Memory Frequency Ratio ; Set the CPU operating frequency and memory operating frequency to 1:1 ratio depends on the quality of the CPU and memory modules, not all can be run at the same frequency; change the ratio if necessary. Because each motherboard manufacturer provides different menus in their BIOS, individual user’s setting may vary. In general, DRAM frequencies are obtained as following – DDR 400 = 1:1, DDR 320 = 5:4, DDR 266 = 3:2 .. etc. DDR Reference Voltage ; This is DDR SDRAM’s operating voltage. It determines the range of voltage provided by manufacturer or by DRAM frequency. Higher DRAM frequency means higher voltage must be applied. Chip Configuration ; When this is set to ;User Define] users are allowed to change the speed timing as they desire within memory module’s capability. Less period timing means faster and better performance. However, there are risks to cause instability when timings are set too low. A good memory manufacturer should provide performance related timing values for users reference. (Note: default setting is always set to ;By SPD ;which means the timing values are read directly from the memory module preset by the manufacturer.) If the values are set too low, it may cause system to shutdown or reboot automatically. The motherboard will use the SPD setting it read from the module or previous manually set settings. __________________ New Sys Abit AW9D Max OCZ Plat @ x 1gig OCZ Gamextreme 600 PSU 8800 GTS 640 sony dvd burner WD 200 gig sata hdd Thermaltake shark case Viewsonic 22" widescreen

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