Closer Look: Corsiar TwinX1024-4000PRO
TwinX1024-4000PRO set includes two non-registered DDR500 SDRAM memory modules 512MB each. These modules do not support ECC. Corsair targets this set with 1GB total storage capacity for high-performance systems with dual-channel memory controller. The memory modules included into the Corsair TwinX1024-4000PRO are based on 16 chips arranged as 32Mx8, i.e. these are dual-bank modules. Unfortunately, we don’t know exactly which chips are used in these memory modules, although we suppose that they are most likely to come from Hynix.
When you get hold of the new Corsair modules, the first thing that catches your eye is the larger size of the modules as well as the larger size of the heat-spreaders covering them. True, Corsiar TwinX1024-4000PRO modules are slightly taller than the regular ones: they are 4.5cm tall (compare with the 3.3cm by the regular modules), i.e. they are almost as tall as the Registered memory modules. You should always keep it in mind, because the size of these modules may not allow using them in certain PC cases.
The heat-spreaders installed onto the memory chips feature much bigger cooling surface. However, this surface has become bigger not only due to bigger height of the heat-spreaders. Now this surface is not flat but features about 1mm-ribs all over it. All in all, it led to the fact that the effective heatsink surface of TwinX1024-4000PRO modules turned 95% bigger than the effective surface of other Corsair heat-spreaders. Just like all the previous ones, the new heat-spreaders are stuck to the memory chips with conductive pads. Here I have to point out that it is not for nothing that the new memory modules acquired larger heat-spreaders. The modules do heat up quite tangibly during work.
If you look at the upper side of the heat-spreaders, you will notice another thing that distinguishes Corsair memory from many other similar products. There are two rows of 9 colored LEDs (green, yellow and red) for a total of 18. During work they light up depending on the intensity of memory addressing operations. For example in idle mode only four first green LEDs are lit up. If you start an application, however, something like a 3D shooter, all LEDs will light up. During regular work the LEDs are light up and go out all the time, so that the LED row starts looking more like the equalizer bar. Of course, LED indication like that is of no practical value.