Thread: Memory Problem

For asus p5q motherboard and CPU e8400 3ghz bought Memory Corsair Dominator <TWIN2X4096-8500C5D> DDR-II DIMM 4Gb KIT 2 * 2Gb <PC2-8500> in the BIOS put voltage 2.1 volts and 1066, but cpu-z and other similar tools consistently shows 800 MHz on the same cpu-z memory works on the profile jedec2 with a frequency of 400, at 533 epp is not going to go whether there is a dependence on the chipset manufacturer? read that corsair with nvidia promote epp. feeling that Intel's chipsets is not working.

I have very chipset nvidia 590 sli (asus m2n32 sli delux) and Memory Corsair XMS2 <TWIN2X4096-6400C4DHX> DDR-II DIMM 4Gb KIT 2 * 2Gb <PC2-6400>. so I just set in the BIOS sli ready with the dissolution of 0% and I have established normal timings and bus speed, but until then, even during a voltage 2.1 volts and 800 MHz timings were higher than those in the specification really chipset?

And in the first case, when put voltage and frequency, timings put right? And if you set them manually correct or less put the frequency, it appears as? a working computer is stable? Memtest run?

A hand-533MHz for memory is not destined to submit?

No, too high. computer works normally. memory itself is fine. tested on another computer. memtest strangely conducting tests ... sharply from 9% to 100% of the errors was not. I understand, is exposed in the BIOS memory clock, not the tire, ie only 1066.

Unfortunately, I was not able to understand your idea.

on the choice for the fsb and memory frequency. bus frequency pyamyati (533) set impossible - no settings. Only you can change the frequency of memory (667, 800, 1066, etc.). change settings to nothing lead feeling that the BIOS to nick.

Naturally, because you look at CPU-Z stitch in spd memory modes by default, but to actually change the memory frequency will not notice.

1066 MHz and 2.1 volts is established. in cpu-z tab, look memory. there is indicated the frequency of 800 MHz and excessive latency. tab spd these parameters correspond to the profile jedec2, but the memory should work with epp1 1066 and timings 5-5-5-15-2T.

I repeat that in the BIOS everything is as it should, but cpu-z and everest show that the memory runs at 800 MHz and inflated timings. Unfortunately, screen can provide only in the evening, TC problematic computer is not me.

I think I got the idea that all is well, left you to understand! If the BIOS billed correctly, and third-party soft shows the same (but time is not something that's been) - then it shows the memory settings by default!

now able to make screenshots of the settings and test results indeed exhibit the desired frequency and timings are managed by setting dram timing control in the treatment manual, but the alarming rate ...

sreens BIOS settings

test result in benchmark Everest
read = 7270 MB / s
write = 6990 MB / s
copy = 7217 MB / s
latency = 62,6 ns


then, for the development of the experiment, the memory frequency was reduced from 1066 to 800 MHz at a voltage of 2.1 volts and the automatic alignment of timings. speed naturally fell.

screenshot of BIOS settings

result in the Everest
read = 6304 MB / s
write = 6980 MB / s
copy = 6895 MB / s
latency = 86,4 ns

Why were alarmed by such a speed ... here is the result of the test have my computer with 800 MHz memory, but with a processor amd athlon x2 5600 +
read = 8726 MB / s
write = 8028 MB / s
copy = 8574 MB / s
latency = 45,8 ns

I'm certainly glad that my memory is quicker and smarter than the other, despite the fact that the frequency of only 800 against 1066, but such a large difference suggests that the software, to put it mildly, lie.or is it due to the fact that the memory controller for intel systems is in the chipset, while in the amd processor?

at work, under the impression, held to the same test with the same memory, but with different processors. result is the same - the speed of RAM with Athlone significantly greater than with intel processors, ceteris paribus.
it? (c) will be glad to know the opinion.