https://wiki.cs.earlham.edu/index.php?action=history&feed=atom&title=Cluster%3ABig-Fe%3APower_ConsumptionCluster:Big-Fe:Power Consumption - Revision history2026-07-21T07:56:37ZRevision history for this page on the wikiMediaWiki 1.44.2https://wiki.cs.earlham.edu/index.php?title=Cluster:Big-Fe:Power_Consumption&diff=5556&oldid=prevMccoyjo at 19:48, 6 June 20062006-06-06T19:48:15Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:48, 6 June 2006</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Poster Prose ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Poster Prose ==</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>In order to determine the characteristics of a power supply capable of power one of our subracks, we needed to generate detailed information on the power consumption of a single node. The total AC amperage and the DC amperage per wire on each of the ATX<del style="font-weight: bold; text-decoration: none;">, EPS12V, and MOLEX </del>connectors <del style="font-weight: bold; text-decoration: none;">that connect the power supply to a node are the data points that </del>comprise a single node power consumption profile. Additionally, a separate power consumption profile for <del style="font-weight: bold; text-decoration: none;">single CPU, dual CPU, and hard disk loads </del>are used to determine the maximum power output capacities the power supply would need.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>In order to determine the characteristics of a power supply capable of power one of our subracks, we needed to generate detailed information on the power consumption of a single node. The total AC amperage and the DC amperage per wire on each of the <ins style="font-weight: bold; text-decoration: none;">standard </ins>ATX connectors comprise a single node power consumption profile. Additionally, a separate power consumption profile for <ins style="font-weight: bold; text-decoration: none;">different load conditions </ins>are used to determine the maximum power output capacities the power supply would need.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The total AC amperage is measured by an <del style="font-weight: bold; text-decoration: none;">inline </del>power meter <del style="font-weight: bold; text-decoration: none;">inserted </del>between the <del style="font-weight: bold; text-decoration: none;">power source </del>and the power supply. Every wire in each connector that powers the motherboard was cut and reconnected to a terminal block. A multi-meter <del style="font-weight: bold; text-decoration: none;">is </del>then inserted to measure the DC amperage used by each voltage rail <del style="font-weight: bold; text-decoration: none;">on the power supply</del>. <del style="font-weight: bold; text-decoration: none;"> </del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The total AC amperage is measured by an power meter <ins style="font-weight: bold; text-decoration: none;">inline </ins>between the <ins style="font-weight: bold; text-decoration: none;">wall jack </ins>and the power supply. Every wire in each connector that powers the motherboard was cut and reconnected to a terminal block. A multi-meter <ins style="font-weight: bold; text-decoration: none;">was </ins>then inserted to measure the DC amperage used by each voltage rail.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The largest of the total DC amperages used by each rail determine the maximum output capacities needed on each rail of the power supply for a single node.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The largest of the total DC amperages used by each rail determine the maximum output capacities needed on each rail of the power supply for a single node.</div></td></tr>
</table>Mccoyjohttps://wiki.cs.earlham.edu/index.php?title=Cluster:Big-Fe:Power_Consumption&diff=1842&oldid=prevMccoyjo at 15:59, 1 June 20062006-06-01T15:59:29Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:59, 1 June 2006</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">*</del>Poster Prose</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">== </ins>Poster Prose <ins style="font-weight: bold; text-decoration: none;">==</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In order to determine the characteristics of a power supply capable of power one of our subracks, we needed to generate detailed information on the power consumption of a single node. The total AC amperage and the DC amperage per wire on each of the ATX, EPS12V, and MOLEX connectors that connect the power supply to a node are the data points that comprise a single node power consumption profile. Additionally, a separate power consumption profile for single CPU, dual CPU, and hard disk loads are used to determine the maximum power output capacities the power supply would need.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In order to determine the characteristics of a power supply capable of power one of our subracks, we needed to generate detailed information on the power consumption of a single node. The total AC amperage and the DC amperage per wire on each of the ATX, EPS12V, and MOLEX connectors that connect the power supply to a node are the data points that comprise a single node power consumption profile. Additionally, a separate power consumption profile for single CPU, dual CPU, and hard disk loads are used to determine the maximum power output capacities the power supply would need.</div></td></tr>
</table>Mccoyjohttps://wiki.cs.earlham.edu/index.php?title=Cluster:Big-Fe:Power_Consumption&diff=1841&oldid=prevMccoyjo at 15:58, 1 June 20062006-06-01T15:58:39Z<p></p>
<p><b>New page</b></p><div>*Poster Prose<br />
<br />
In order to determine the characteristics of a power supply capable of power one of our subracks, we needed to generate detailed information on the power consumption of a single node. The total AC amperage and the DC amperage per wire on each of the ATX, EPS12V, and MOLEX connectors that connect the power supply to a node are the data points that comprise a single node power consumption profile. Additionally, a separate power consumption profile for single CPU, dual CPU, and hard disk loads are used to determine the maximum power output capacities the power supply would need.<br />
<br />
The total AC amperage is measured by an inline power meter inserted between the power source and the power supply. Every wire in each connector that powers the motherboard was cut and reconnected to a terminal block. A multi-meter is then inserted to measure the DC amperage used by each voltage rail on the power supply. <br />
<br />
The largest of the total DC amperages used by each rail determine the maximum output capacities needed on each rail of the power supply for a single node.<br />
<br />
<summary table><br />
<br />
Multiplying the single node values by a factor of four results in the necessary characteristics of a power supply needed to power a subrack of four nodes.<br />
<br />
<4 node summary table></div>Mccoyjo