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Although those of you who have a case with transparent windows in it may love Corsair TwinX1024-4000PRO, because the blinking LED rows on the memory modules look really impressive. The only thing you should really worry about is to make sure that the HDD cables do not hide all this beauty from the viewer.

It is exactly because of this “color music” that the memory modules grew bigger in size. The additional space on the module PCB is definitely used for the LEDs electrical circuitry. Moreover, I have to express my concern about the influence of this additional circuitry on the modules stability. Of course, the LED indication circuit does add up more workload to the signal lines and power lines. So, since these memory modules work at a pretty high frequency this extra load certainly tells on the memory subsystem functioning. In fact, we will have a chance to check it out in practice later on, and now let’s continue with the features of the new TwinX1024-4000PRO from Corsair.

According to the official specification, Corsair TwinX1024-4000PRO can work at 250MHz (500MHz DDR) in dual-channel mode and have been preliminarily tested and approved for work in these conditions. The manufacturer guarantees the work of this module set at 250MHz frequency with the timing set to 3-4-4-8, which is considered to be pretty “mild” for most mainboards. The nominal voltage for these modules to work impeccably is 2.75V, according to the manufacturer.

In fact, the parameters listed in the modules SPD are slightly different from the claimed ones. The default timings for Corsair TwinX1024-4000PRO on the mainboards are 3-4-4-7. However, we find out even more exciting news if we use additional utilities to read the SPD parameters. Take, for instance, a well-known CPU-Z program:

CPU-Z version 1.19b
Memory Modules Serial Presence Detect (SPD)

Module #0
Memory type  DDR-SDRAM
Manufacturer (ID)  Corsair (7F7F9E0000000000)
Size  512MBytes
Max bandwidth  PC3700 (232MHz)
Part number  CMX512-4000
Max frequency @CAS#3.0  232MHz

Module #1
Memory type  DDR-SDRAM
Manufacturer (ID)  Corsair (7F7F9E0000000000)
Size  512MBytes
Max bandwidth  PC3700 (232MHz)
Part number  CMX512-4000
Max frequency @CAS#3.0  232MHz

As we see, for some unknown reason SPD of these modules indicates that their maximum working frequency is 232MHz. Moreover, it also says that this is not PC4000, but PC3700! Hm, this is a very upsetting mistake on Corsair’s part, which actually makes me a little doubtful about the high working frequency of this product. However, let’s turn to real benchmarks, which will help us to reveal the real performance advantages of Corsair TwinX1024-4000PRO.

 
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