What happened to the change from DDR400 to DDR333????????

What happened when the memory changed from DDR400 to DDR333???

Bounty Points: 0 - 1 day and 7 hours until the end of the question.

I increased the voltage of the cup in the BOIS and overclocked, originally my memory was DDR400 but after the overclocking was completed, the memory changed from DDR400 to DDR333, and then I restored the original BOIS settings, but it was still DDR333, I increased the memory voltage to the maximum but only DDR348 did not go up to DDR400, what is going on? Please tapped it with a high finger and thanked you!!

Question addendum: So how should the memory frequency be adjusted asynchronously?

Asked by: 406306743 - Probationary period Level 1.

I'll too: What's going on with the change in memory from DDR400 to DDR333???

Bounty Points: 0 - 1 day and 7 hours until the end of the question.

I increased the voltage of the cup in the BOIS and overclocked, originally my memory was DDR400 but after the overclocking was completed, the memory changed from DDR400 to DDR333, and then I restored the original BOIS settings, but it was still DDR333, I increased the memory voltage to the maximum but only DDR348 did not go up to DDR400, what is going on? Please tapped it with a high finger and thanked you!!

Question addendum: So how should the memory frequency be adjusted asynchronously?

Asked by: 406306743 - Probationary period Level 1.

There was 1 reply.

The external frequency is 333, and the memory frequency can also be adjusted asynchronously to DDR400, which is optional in the BIOS settings.

2 points will be awarded, and 20 points will be awarded to the quilt. Points Rules.

The word count should be less than 10,000 words.

Anonymous 1 responses.

The external frequency is 333, and the memory frequency can also be adjusted asynchronously to DDR400, which is optional in the BIOS settings.

The DDR333 memory is packaged in TinyBGA, which has the characteristics of good frequency response, less chip signal interference, and better electrical performance than TSOP package. The Kingmax DDR333 has a self-refresh feature and is compatible with the SSTL-2 standard, and the capacity can reach 512MB 1GB.

As we all know, DDR solves the bandwidth problem of memory by using double data rate. The principle is that data can be transmitted once on each of the rising and falling edges of the system clock (SDRAM only allows data to be transmitted on the rising edge), so that DDR can transmit data twice in a clock cycle, so the data bandwidth is theoretically doubled. DDR200 and DDR266 are currently in practical use, and DDR333 is considered the next DDR specification.

Although the bandwidth of DDR memory has been greatly improved compared to SDRAM, the DDR266 memory currently running at 133MHz can only provide the transfer bandwidth (hence the name PC2100), which is still far from RDRAM memory, so the new DDR333 memory specification came into being. The DDR333 chip runs on a frequency clock that is equivalent to 333MHz SDRAM, so the DDR333 specification is also known as PC333. At the same time, it has a transmission bandwidth and is therefore also called PC2700.