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AMD Motherboards & CPUs Questions or comments on AMD products? |
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what do you mean no? I've seen many people run all 4 dimms at 1T, whats the point of all four dims then? thats a performance loss not a gain. shoot I ran my asus A7V880 with 4x256 (geil ddr 400 cl2.5-4-4-8)at 1T and you're saying an nvidia 939 chipset has an inferior memory contoller than a 462 via chip? anyways it'd be better for testing with 1Gb on dual and see what you can do with that.
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The prime reason for this is that each bank of memory adds a bit extra load. When you have eight banks, the CPU doesn't have enough strength to drive all eight banks at 1T. Obviously this depends on just how much extra power each bank of memory requires to drive it. Memory that provides less of a load is more likely to run happily at higher speeds. Also remember that as there's no latency between the memory controller and the CPU core, the memory controller can issue commands to the RAM faster than a system with a front side bus between the CPU and memory controller. Thus memory that works ok on an older FSB based system might struggle to keep up on a system where the memory controller is on the CPU.
__________________ Any views, thoughts and opinions are entirely my own. They don't necessarily represent those of my employer (BlackBerry). |
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which isa what it makes it superior to netburst but still doesn't solve my problem.
__________________ Alienware 3.2 Ghz 1 GB ram 4-4-4-12 160GB 256 MB 6800GT 413/1102 Main Rig AMD 4000+ 2772 MHz w/ DFI SLI DR 2GB Corsair XMS (with LED's of course)@ 2.5-3-2-11 @ 240MHz 250GB HDD SATA2 Xfi-64MB X-Ram WMCE 7800GTX OC-516(+40Mhz Delta clock)/1300 ![]() "The motherboard installation section essentially said "refer to motherboard manual for installation instructions". My motherboard manual of course said "refer to case manual for further installation instructions"." ![]() |
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AMD driver?
__________________ Alienware 3.2 Ghz 1 GB ram 4-4-4-12 160GB 256 MB 6800GT 413/1102 Main Rig AMD 4000+ 2772 MHz w/ DFI SLI DR 2GB Corsair XMS (with LED's of course)@ 2.5-3-2-11 @ 240MHz 250GB HDD SATA2 Xfi-64MB X-Ram WMCE 7800GTX OC-516(+40Mhz Delta clock)/1300 ![]() "The motherboard installation section essentially said "refer to motherboard manual for installation instructions". My motherboard manual of course said "refer to case manual for further installation instructions"." ![]() |
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I stilll don't know what the mem buss that ntune shows is!!!!
__________________ Alienware 3.2 Ghz 1 GB ram 4-4-4-12 160GB 256 MB 6800GT 413/1102 Main Rig AMD 4000+ 2772 MHz w/ DFI SLI DR 2GB Corsair XMS (with LED's of course)@ 2.5-3-2-11 @ 240MHz 250GB HDD SATA2 Xfi-64MB X-Ram WMCE 7800GTX OC-516(+40Mhz Delta clock)/1300 ![]() "The motherboard installation section essentially said "refer to motherboard manual for installation instructions". My motherboard manual of course said "refer to case manual for further installation instructions"." ![]() |
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Things that affect this are anything that affects the speed of the CPU, together with the memory bus divider.
__________________ Any views, thoughts and opinions are entirely my own. They don't necessarily represent those of my employer (BlackBerry). |
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why does it have such a low limit
__________________ Alienware 3.2 Ghz 1 GB ram 4-4-4-12 160GB 256 MB 6800GT 413/1102 Main Rig AMD 4000+ 2772 MHz w/ DFI SLI DR 2GB Corsair XMS (with LED's of course)@ 2.5-3-2-11 @ 240MHz 250GB HDD SATA2 Xfi-64MB X-Ram WMCE 7800GTX OC-516(+40Mhz Delta clock)/1300 ![]() "The motherboard installation section essentially said "refer to motherboard manual for installation instructions". My motherboard manual of course said "refer to case manual for further installation instructions"." ![]() |
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It doesn't actually. HT uses 8 data lines to transfer data IIRC, whereas the RAM uses 64 or 128 data lines to transfer data. That means the memory bus can run 8times slower but still transfer the same amount of information as HT.
__________________ Any views, thoughts and opinions are entirely my own. They don't necessarily represent those of my employer (BlackBerry). |
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ahh thanks it still and irritating OC limit though.
__________________ Alienware 3.2 Ghz 1 GB ram 4-4-4-12 160GB 256 MB 6800GT 413/1102 Main Rig AMD 4000+ 2772 MHz w/ DFI SLI DR 2GB Corsair XMS (with LED's of course)@ 2.5-3-2-11 @ 240MHz 250GB HDD SATA2 Xfi-64MB X-Ram WMCE 7800GTX OC-516(+40Mhz Delta clock)/1300 ![]() "The motherboard installation section essentially said "refer to motherboard manual for installation instructions". My motherboard manual of course said "refer to case manual for further installation instructions"." ![]() |
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It's generated from the base clock frequency fed to the CPU, multiplied by the CPU's multiplier and then divided by the memory dividers. However, the dividers can only be set up at boot time, not when the machine is running, so you can't use nTune to alter them. You have to use the BIOS. (At least, this is from memory - can anyone confirm/deny this?)
__________________ Any views, thoughts and opinions are entirely my own. They don't necessarily represent those of my employer (BlackBerry). |
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while you can bring up the speed the limit is still there.
__________________ Alienware 3.2 Ghz 1 GB ram 4-4-4-12 160GB 256 MB 6800GT 413/1102 Main Rig AMD 4000+ 2772 MHz w/ DFI SLI DR 2GB Corsair XMS (with LED's of course)@ 2.5-3-2-11 @ 240MHz 250GB HDD SATA2 Xfi-64MB X-Ram WMCE 7800GTX OC-516(+40Mhz Delta clock)/1300 ![]() "The motherboard installation section essentially said "refer to motherboard manual for installation instructions". My motherboard manual of course said "refer to case manual for further installation instructions"." ![]() |
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Yes, all clocks have a limit. However, with the dividers/base clock set correctly you should find that your RAM can't keep up well before you hit the limit. People have RAM running much faster than in your setup, as their dividers and clocks are set differently.
__________________ Any views, thoughts and opinions are entirely my own. They don't necessarily represent those of my employer (BlackBerry). |
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for some reason my board deosn't like running DDR 400 still though so I can't up the speen even to the normal speed.
__________________ Alienware 3.2 Ghz 1 GB ram 4-4-4-12 160GB 256 MB 6800GT 413/1102 Main Rig AMD 4000+ 2772 MHz w/ DFI SLI DR 2GB Corsair XMS (with LED's of course)@ 2.5-3-2-11 @ 240MHz 250GB HDD SATA2 Xfi-64MB X-Ram WMCE 7800GTX OC-516(+40Mhz Delta clock)/1300 ![]() "The motherboard installation section essentially said "refer to motherboard manual for installation instructions". My motherboard manual of course said "refer to case manual for further installation instructions"." ![]() |
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