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Specifications
Dell™ Dimension™ E521 Service Manual
Processor
Processor type | AMD Athlon™ 64 X2 |
| AMD Athlon 64 processor |
| AMD Sempron™ processor |
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Level 2 (L2) cache | Up to 1 MB per core |
| Up to 256 KB for Sempron processors |
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Memory |
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Type | |
| SDRAM |
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Memory connectors | four |
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Memory capacities | 256 MB, 512 MB, or 1 GB |
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Maximum memory | 4 GB |
| NOTE: See Addressing Memory With |
| Configurations to verify the amount of memory |
| available to the operating system. |
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Computer Information |
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Chipset | Nvidia GeForce 6150LE |
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RAID Support | RAID 1 (Mirroring) |
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DMA channels | eight |
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Interrupt levels | 24 |
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BIOS chip (NVRAM) | 4 Mb |
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NIC | Integrated network interface capable of 10/100 |
| communication |
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Video |
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Type | Nvidia integrated video (DirectX 9.0 Shader Model 3.0 |
| Graphics Processing Unit) or optional PCI Express x16 |
| graphics card |
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Audio |
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Type | Sigmatel 9227 CODEC (7.1 Channel audio) |
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Expansion Bus |
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Bus type | PCI 2.3 |
| PCI Express 1.0A |
| SATA 1.0 and 2.0 |
| USB 2.0 |
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Bus speed | PCI: 133 MB/s |
| PCI Express: |
| x1 slot bidirectional speed - 500 MB/s |
| x16 slot bidirectional speed - 8 GB/s |
| SATA: 1.5 Gbps and 3.0 Gbps |
| USB: 480 Mbps high speed, 12 Mbps full speed, 1.2 |
| Mbps low speed |
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PCI |
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connectors | two |
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