mortonman1
New Member
i've seen 4-4-4-12 and stuff and i dont know what timings do or how they affect the computer. please give me substantial info. thank you
what are timings? RAM
- Thread starter mortonman1
- Start date
RAM Timing
RAM manufacturers typically list the recommended timing for their RAM as a series of four integers separated by dashes (e.g 2-2-2-6 or 3-3-3-8 or 4-4-4-12 and so on). While there are many other settings related to RAM, these four integers refer to the following settings, which are typically listed in this order: CL - Trcd - Trp - Tras.
CL = CAS Latency Time: The time it takes between a command having been sent to the memory and when it begins to reply to it. It is the time it takes between the processor asking for some data from the memory and it returning it.
TRCD = DRAM RAS# to CAS# Delay: The number of clock cycles performed between activating the Row Access Strobe and the Column Access Strobe. This parameter relates to the time it takes to access stored data.
TRP = DRAM RAS# Precharge: The amount of time between the 'precharge' command and the 'active' command. The precharge command closes memory that was accessed and the active command signifies that a new read/write cycle can begin.
TRAS = Active to Precharge delay: The total time that will elapse between an active state and precharge state. This is the sum of the previous timings: CL + TRCD + TRP
The BIOS on a PC may allow the user to make adjustments to RAM Timing in an effort to increase performance or, in some cases, increase stability.
See dynamic random access memory, specifically the Synchronous Dynamic RAM (SDRAM) section.
http://en.wikipedia.org/wiki/CAS_latency
The CAS Latency and general term "timings" are important when adding memory to a system. For gaming builds where performance is a must the lower the Cas Latency and timings in general the faster the data is processed out to the cpu as well as the memory's own speed.
The additional links provided there especially at PCSTATS go into thing further including illustrations like seen at http://www.pcstats.com/articleview.cfm?articleID=873
RAM manufacturers typically list the recommended timing for their RAM as a series of four integers separated by dashes (e.g 2-2-2-6 or 3-3-3-8 or 4-4-4-12 and so on). While there are many other settings related to RAM, these four integers refer to the following settings, which are typically listed in this order: CL - Trcd - Trp - Tras.
CL = CAS Latency Time: The time it takes between a command having been sent to the memory and when it begins to reply to it. It is the time it takes between the processor asking for some data from the memory and it returning it.
TRCD = DRAM RAS# to CAS# Delay: The number of clock cycles performed between activating the Row Access Strobe and the Column Access Strobe. This parameter relates to the time it takes to access stored data.
TRP = DRAM RAS# Precharge: The amount of time between the 'precharge' command and the 'active' command. The precharge command closes memory that was accessed and the active command signifies that a new read/write cycle can begin.
TRAS = Active to Precharge delay: The total time that will elapse between an active state and precharge state. This is the sum of the previous timings: CL + TRCD + TRP
The BIOS on a PC may allow the user to make adjustments to RAM Timing in an effort to increase performance or, in some cases, increase stability.
See dynamic random access memory, specifically the Synchronous Dynamic RAM (SDRAM) section.
http://en.wikipedia.org/wiki/CAS_latency
The CAS Latency and general term "timings" are important when adding memory to a system. For gaming builds where performance is a must the lower the Cas Latency and timings in general the faster the data is processed out to the cpu as well as the memory's own speed.
The additional links provided there especially at PCSTATS go into thing further including illustrations like seen at http://www.pcstats.com/articleview.cfm?articleID=873
mortonman1
New Member
great, thanks. exactly what i needed