So I have a small problem namely what is the difference between these two types of memory:
As I read in Wikipedia quote:
....and okay, I understood everything, which means that the memory with the designation of non-ECC is nothing more than information for such a buyer: (the English "NON" means - without - not ) that is, normal memory without ECC or maybe with the ability to enable or disable the ECC function in the bios option of the board that has such an option?
I checked and my board supposedly has, but due to the fact that I uploaded a new bios this option is no longer present, or at least may be hidden.
But in Main Board it shows:
But to the point on Allegro I bought not long ago two memory bones :
my board is: Lucky Star K7VAT on Via Kt 133 so just right.
Well, but as it happens on allegro is not always pretty and colorful I got two dice yes in the antistatic package but instead of INFINEON these were samsung dice ( after contacting the seller explained
Well, yes beautifully, but putting these two dice in the board nicely detected everything but there is a small but why in the program EVEREST as you can see these memory dice are detected as: 72 bit memory with ECC error detection method
And in addition described as (512MB PC2700 ECC DDR SDRAM)
what is known from memory DDR SDRAM is not the same as SDR SDRAM .
The difference is due to the very design of these chips.
So this information, in my opinion, can be either a mistake, a publicity stunt or just theoretical information comparing this particular SDRAM memory to DDR memory which, operating on a 166MHz bus, will achieve such throughput:
DDR-333 (PC-2700) – (64 bits * 2 * 166 MHz)/8 = 2.7 GB/s
Well, if the seller lists the memory die as non-ECC and the program informs me that the memory has ECC after despite the absence of an additional memory module, I don't know what to think about it myself, does the program have some kind of misrepresentation or rather the seller is wrong?
As I read in Wikipedia quote:
Quote:ECC memory - a type of RAM, used in servers. Modules of such memory are equipped with ECC (Error Correction Code) function. These modules have an extended data bus, by which, in addition to the data itself, control codes are transmitted, which allow detection of single bit errors. This solution ensures greater stability of the computer system than in the case of using ordinary memory dice, which do not support ECC.
To use the additional functionality of such memory, both the chipset and the BIOS of the motherboard must be able to support it.
The cost of using correction is a 1-2% drop in the performance of such memory, as well as more transistors for the same capacity, since each memory cell contains a correction code in addition to the data.
....and okay, I understood everything, which means that the memory with the designation of non-ECC is nothing more than information for such a buyer: (the English "NON" means - without - not ) that is, normal memory without ECC or maybe with the ability to enable or disable the ECC function in the bios option of the board that has such an option?
I checked and my board supposedly has, but due to the fact that I uploaded a new bios this option is no longer present, or at least may be hidden.
But in Main Board it shows:
But to the point on Allegro I bought not long ago two memory bones :
Quote:Capacity: 512 Mb
Operating frequency: 133MHz or 100MHz
Number of pins: 168
Condition: brand new module
Memory type: non ECC
Two-sided memory: 16 chips
Warranty: 60 months (fulfilled in Poland)
Memory is compatible with most motherboards
supporting SDRAM standard and 512MB memory
mainly VIA and Sis
my board is: Lucky Star K7VAT on Via Kt 133 so just right.
Well, but as it happens on allegro is not always pretty and colorful I got two dice yes in the antistatic package but instead of INFINEON these were samsung dice ( after contacting the seller explained
Well, yes beautifully, but putting these two dice in the board nicely detected everything but there is a small but why in the program EVEREST as you can see these memory dice are detected as: 72 bit memory with ECC error detection method
And in addition described as (512MB PC2700 ECC DDR SDRAM)
what is known from memory DDR SDRAM is not the same as SDR SDRAM .
The difference is due to the very design of these chips.
So this information, in my opinion, can be either a mistake, a publicity stunt or just theoretical information comparing this particular SDRAM memory to DDR memory which, operating on a 166MHz bus, will achieve such throughput:
DDR-333 (PC-2700) – (64 bits * 2 * 166 MHz)/8 = 2.7 GB/s
Well, if the seller lists the memory die as non-ECC and the program informs me that the memory has ECC after despite the absence of an additional memory module, I don't know what to think about it myself, does the program have some kind of misrepresentation or rather the seller is wrong?
