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MWSF: PowerLogix zeigt neue G4 Upgradekarten und 2 neue Cubegehäuse
MacNews schrieb:Es wurden nun zwei Upgrades für G4-Power Macs vorgestellt, die einen Betrieb der Rechner mit weniger Stromverbrauch versprechen. Die PowerForce G4-74'47 ist sowohl mit einem als auch zwei Prozessoren erhältlich, die mit einer Taktrate von 1,2 bis 1,7 GHz arbeiten und auch in einem G4 Cube funktionieren
MacNewes schrieb:Die Karten sollen nächste Woche erhältlich sein, Preise sind noch nicht bekannt. Für den PowerMac G4 Cube bietet PowerLogix außerdem zwei neue Gehäuse in den Farben weiß und glänzend-schwarz an, die ab sofort erhältlich sind. Der Preis liegt bei 139,- Dollar, der Vertrieb aller Produkte des Hersteller erfolgt über Other World Computing.
PowerLogix schrieb:SAN FRANCISCO – January 11, 2005 – PowerLogix continues to lead innovation in the Mac CPU upgrade market with the announcement of two new CPU cards for PowerMac G4s.
The first CPU card is an all-new design, called the PowerForce G4 '47. It features the latest high speed G4 PowerPC CPU, the 7447A. This card reaches new highs with clock speeds of up to 1.7 GHz, and it also offers several features not offered by any competing product.
The second CPU card is a refinement of the original PowerForce G4 from 2002. Called the PowerForce G4 ‘57, it uses the latest version of the PowerPC 7457. The 7457 offers a slightly slower clock speed than the 7447A, but it includes 2Mb of L3 cache per CPU.
Both the PowerPC 7457 and the 7447A draw significantly less power than previous PowerPC G4s for cool, reliable, high-performance operation.
PowerLogix schrieb:VRM Bypass Circuitry for use with G4 Cube
When installed in a PowerMac G4 Cube, the Dual PowerForce G4 '47 also features exclusive VRM Bypass circuitry. The original Apple VRM ("voltage regulator module"; also known as the DC/DC power supply card) is incapable of providing sufficient power for reliable operation at clock speeds faster than a single 1.2 GHz 7455 CPU. A dual CPU in the Cube was impossible, until now.
With the new PowerForce G4 '47 card installed, the Cube's original VRM is no longer the power source for the CPU. Instead, the CPU card uses its own power supply circuit. This greatly extends the life of the VRM, as the demands on the VRM are significantly less. In addition, the CPU power supply, since it is located on the card, is cooled by the internal Cube heatsink and the Cube's airflow. The original VRM, conversely, is located in one corner of the Cube, and has virtually no airflow.
By including this exclusive circuit on the Dual PowerForce G4 ‘47, PowerLogix has not only succeeded in extending the life of the Cube's weakest point, but has at the same time created the fastest, most powerful Cube ever.