Articles: Memory

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Overclocker-Friendly 2GB Kits of DDR SDRAM

Corsair TWINX2048-3500LLPRO

The Corsair TWINX2048-3500LLPRO kit consists of two 1GB DIMMs of DDR SDRAM that are rated to work at 218MHz (436MHz DDR) with aggressive timings. At least the manufacturer claims that all kits of this series are tested at that frequency and with 2-3-2-6 timings on an ASUS A8N-SLI Premium mainboard.

The memory kit belongs to a professional product series which means two things. First, Corsair TWINX2048-3500LLPRO modules are equipped with larger heatsinks. Second, on the top edge of each module there are 18 green, yellow, red LEDs indicating the memory module usage. That’s why this product has a particular appeal for modders and owners of system cases with a transparent side window – the modules do look amazing at work.

For our pragmatic minds, however, it is the large heatsink that makes these modules special. On one hand, the bigger height of the modules may cause some installation-related problems on mainboards where Socket 939 and DIMM slots are placed too closely. For example, the popular Zalman CNPS7700Cu cooler most often makes it impossible to install these sticks into the DIMMs nearest to the CPU socket. Similar problems may occur with other massive coolers. And still, we think it’s good rather than bad to have a larger heatsink with a larger dissipation area on a memory module, especially on a 1GB module which is hotter than conventional 512MB sticks. Excessive heat may even hinder your overclocking attempts at times, so we can put up with some inconveniences just to be sure about efficient heat dissipation. However, before purchasing a Corsair TWINX2048-3500LLPRO kit, you may want to make sure you can physically fit these sticks into your computer. For reference: the height of a Corsair TWINX2048-3500LLPRO module is 45 millimeters (as opposed to conventional modules’ 33 millimeters).

Let’s get back to the heatsinks, though. They have a small ribbing for better efficiency and are made of aluminum anodized into black color. The stickers on the modules tell you the name of the manufacturer and of the product series; the sticker on the other side of the module displays the Corsair logo and informs you of the basic characteristics of the modules like name, capacity, frequency and timings. Here’s the formal specification of the Corsair TWINX2048-3500LLPRO memory kit:

  • Frequency: 438MHz DDR
  • Timings: 2-3-2-6 at 1T Command Rate
  • Voltage: 2.6V
  • The kit includes two 184-pin unbuffered non-ECC DDR SDRAM modules, 1024MB each
  • The modules are equipped with black-colored aluminum large-size ribbed heatsinks
  • Lifetime warranty

Note that unlike overclocker-targeted memory modules of 512MB capacity, Corsair’s TWINX2048-3500LLPRO memory works at a rather low voltage of 2.6V. Infineon’s revision B chips used for these modules have high frequency potential at this voltage.

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