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    Intels Sossaman Chip Saves Power in Rackables Server

    By
    Anne Chen
    -
    March 14, 2006
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      Intels new power-saving chip—the dual-core Xeon Low Voltage 2GHz—makes one of its earliest appearances in Rackable Systems C1000-L01 server.

      Click here to read the full review of Xeon Low Voltage 2GHz.

      2


      Intels new power-saving chip—the dual-core Xeon Low Voltage 2GHz—makes one of its earliest appearances in Rackable Systems C1000-L01 server.

      eWEEK Labs tests of the server with the new chip—formerly code-named Sossaman—show that it will provide organizations with exceptional performance per watt per dollar in a tiny 1U (1.75-inch) half-depth chassis.

      As enterprises contend with power consumption and heat issues, IT managers are starting to look for more power-efficient solutions. Released March 14, Rackable Systems C1000-L01 combines Intels low-voltage processors with DC rather than AC power.

      This allows the server to draw a peak of 112 watts, comparable to that of a standard incandescent light bulb.

      Rackable Systems does offer an AC-powered version of the C1000-L01 with the 2GHz dual-core Xeon processor LV CPUs. Even with AC power, the C1000-L01 has a peak draw of 126 watts per server, or 64 percent less than a typical dual-processor server drawing an average 350 watts.

      The $4,020 DC-powered C1000-L01 unit we tested was equipped with two 2GHz dual-core Intel Xeon processor LV CPUs and 4GB of DDR2-400 (double-data-rate 2-400) memory on a prerelease version of the Intel SE7520BB2 (code-named Baker Bay) motherboard.

      Our server was also equipped with dual Gigabit Ethernet NICs, an 80GB SATA (Serial ATA) hard drive and a Rackable Systems DC power card that is normally fed between -48 and -54 volts of DC power when integrated into a cabinet.

      Also released on March 14, Intels dual-core Xeon processor LV is based on the Core Duo Yonah mobile processor. The 32-bit-only processor consumes about 31 watts of power and is considered to be Intels attempt to curb advances made by competitor Advanced Micro Devices Opteron processors. Rackable Systems said the Intel processors keep the C1000-L01s peak power within a 115-watt envelope.

      /zimages/2/28571.gifIntels Pat Gelsinger talks about the companys plans for virtualization and quad-core chips. Click here to read more.

      The C1000-L01s half-depth chassis and power efficiency capabilities make it a good fit for dense and power-constrained data centers. Rackable Systems uses a 1U half-depth chassis, meaning the server measures 1.75 inches by 17.6 inches by 15.5 inches. This allows space-constrained organizations to stack machines back to back in a cabinet and effectively double the number of servers in the same footprint.

      The C1000-L01 supports Microsofts Windows operating systems and various Linux distributions. The server can be equipped with up to two dual-core Intel Xeon Low Voltage processors, 16GB of DDR2-400 RAM, and one internal IDE, SATA II or U320 SCSI hard drive.

      Rackable Systems DC-powered servers are typically deployed in DC cabinets that distribute redundant DC current power to each server. This allows organizations to replace standard AC power supplies, which are often the biggest point of failure in servers. By purchasing a DC-powered solution, eWEEK Labs believes organizations will increase server reliability while lowering monthly power costs.

      /zimages/2/84833.gifZiff Davis Media eSeminars invite: IT managers—come learn the datacenter cooling fundamentals. APCs experts show you new solutions for space, cooling and heating, live on March 23 at 4 p.m. ET. Sponsored by APC.

      To test our C1000-L01, we used a -48-volt power supply converter that converted standard, 110-volt AC from our bench into the required -48-volt DC to the server. We also used a hand-held Milli-Amp meter to measure power usage.

      To test power consumption, we loaded Microsofts Windows Server 2003 on our C1000-L01. To max our CPUs, we installed and ran the transaction-intensive Prime95— Windows-based software used by GIMPS (Great Internet Mersenne Prime Search), a distributed computing project dedicated to finding new Mersenne prime numbers.

      Using the torture-test feature in Prime95, we ran the In-Place FFT (fast Fourier transform) size configuration, which primarily tests the FPU (floating point unit) and the caches of a CPU. While running four instances of Prime95s In-Place FFTs—one for each core—we drew a maximum of 105 watts with all four CPUS at 100 percent utilization. Idle, the server drew 67 watts; it drew 2.4 watts when powered off.

      Next page: Evaluation Shortlist: Related Products.

      Page 3

      Dells PowerEdge 1850 Dells 1U server supports 64-bit Xeon processors (www.dell.com)

      Hewlett-Packards ProLiant DL100 This 1U server supports one single-core Intel Xeon processor or a single- or dual-core AMD Opteron 200 processor (www.hp.com)

      Senior Writer Anne Chen can be reached at [email protected]

      Check out eWEEK.coms for the latest news, views and analysis on servers, switches and networking protocols for the enterprise and small businesses.

      Avatar
      Anne Chen
      As a senior writer for eWEEK Labs, Anne writes articles pertaining to IT professionals and the best practices for technology implementation. Anne covers the deployment issues and the business drivers related to technologies including databases, wireless, security and network operating systems. Anne joined eWeek in 1999 as a writer for eWeek's eBiz Strategies section before moving over to Labs in 2001. Prior to eWeek, she covered business and technology at the San Jose Mercury News and at the Contra Costa Times.

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