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Specifications
Dell™ Dimension™ C521 Service Manual
Microprocessor
Microprocessor type | AMD™ Athlon™ 64 X2 |
| AMD Athlon 64 |
| AMD Sempron™ |
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Internal L2 cache | up to 1 MB per core |
| up to 256 KB for Sempron |
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Memory |
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Type | |
| SDRAM |
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Memory connectors | four |
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Memory modules supported | |
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Minimum memory | 256 MB |
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Maximum memory | 4 GB |
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Computer Information |
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Chipset | nVidia GeForce 6150LE |
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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 9.0c Shader Model |
| 3.0 Graphics Processing Unit) or PCI Express x16 |
| graphics card |
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Audio |
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Type | Sigma Tel 9227 CODEC (7.1 Channel Audio) |
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Controllers |
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Drives | two SATA controllers supporting two devices |
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Expansion Bus |
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Bus type | PCI 2.3 |
| PCI Express 1.0A |
| SATA 1.0A and 2.0 |
| USB 2.0 |
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Bus speed | PCI: 133 MB/s |
| PCI Express x16: 80 Gbps bidirectional speed |
| PCI Express x1: 2.5 Gbps |
| 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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Cards |
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PCI |
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connectors | one |
