The extra voltage keeps the memory stable due to the increase in speed of the memory in Mhz Megahertz. The second thing xmp mode does as well as increasing the clock speed the memory runs at, is to change what we call the timing settings, mostly called latency. The memory once in xmp mode and overclocked requires higher latency timings. The timings are basically how often the memory can be read from or written to when the memory is used with your cpu running in the system, or how often it does one clock cycle or refresh, update of data stored in the memory chips.
At the same time it tells the cpu at what times it can request or send data stored in the memory chips. To prevent errors in memory and with the cpu it is a way of syncing them together to avoid any errors when overclocking and keeps everything to set timings. Shaun o :. The memory once in xmp mode overclocked requires higher latency timings. The timings are basically how often the memory can be read from or written to when the memory is used with your cpu running in the system.
So it tells the cpu at what times it can request or send data stored in the memory chips. To prevent errors in memory and with the cpu it is a way of syncing them together to avoid any errors when overclocking the memory and keeps everything to set timings.
Sep 17, 6, 38 37, 1, In easy simpler terms. They are just preset overlclocking settings that are designed for that RAM so you don't have to go in and mess with the settings yourself and do it manually and get unstable settings. The XMP settings usually are most stable if you want to overclock. Jun 20, 21, 8 85, 4, The "optimal" rating is the maximum it's rated for NOT to be confused with overclocking. Other: I would suggest leaving XMP on for now so you can setup your system and test for stability.
Investigate later if overclocking will help at all arguably not. Hmm,ok,il leave it on and see if theres any changes You must log in or register to reply here. Memory 5 Oct 17, Post thread. Question Super giving me worse frames than a ? Started by Small-Change Oct 7, Replies: Graphics Cards. News Comments. Question She was running so well Question I got two gpus how can I utilize them for gaming?
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Moderators online. Tom's Hardware is part of Future plc, an international media group and leading digital publisher. Visit our corporate site. All rights reserved. England and Wales company registration number Saturday at PM. Nov 5, You can confirm your new overclock using a program such as CPU-Z. If you don't enable XMP, they will run at your system's standard specifications that are dependent on the CPU you have. That is to say, you won't take advantage of the higher clock speeds that your RAM may have.
In most circumstances, this will be fine. Your system will simply run to spec, and you can rest easy knowing everything is nice and stable. However, XMP allows your system to set motherboard and CPU parameters correctly, to allow higher frequency RAM modules, that are designed to run beyond usual specifications.
XMP supported modules contain two memory profiles labeled "Profile 1" and "Profile 2". The first profile contains enthusiast settings; these allow your memory to run at the rated speed advertised on the box. These settings enable only a modest overclock and are also the most stable. The second profile contains more extreme settings that offer a much higher level of performance. Having two profiles allows you to quickly change performance levels for benchmarking or resource heavy tasks.
Any time overclocking is involved, there is a risk of instability.
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