使用「电子垃圾」级的电脑还能用得舒服是一种怎样的体验

如何评价使用“电子垃圾”级的电脑还能用的舒服的人？当然俺是其中一位，家境贫寒苦中作乐可以一言以蔽之。评语您没看到吗？自评：“家境贫寒苦中作乐”。

800 刀买了电子垃圾。内存配置低，还没到一个 TB; 性价比也有点低，基本上没有3D加速；价钱还不到三倍的运费，完全符合“韭菜机”。详情第一部分写了篇散文：第一次用 256GB 内存的电脑 -- 麦文学看图说话系列

话说 1996 年的时候，俺就用过内存 256MB 以上的电脑，从那时起就对内存有了一种畸恋（Fetishism）.

最近报完税了，兜里还剩点零花钱麻将桌，思量着买个电脑来玩玩。最后看上了带 256GB 内存（32x8GB）+ 24核CPU (4X6c) 的Dell PowerEdge R900 .经过漫长的等待，冰天雪地的早上，终于到货了。快递公司的司机问，这纸盒里面啥玩意那么重，差不多 100 磅了，不会是尸体吧？俺说是俺的二手电脑。运费 300 多刀。俺手无缚鸡之力，一个人根本抬不起来。用滚的办法，一路将箱子滚到了地下室，再用滚动的办法把开了箱的电脑滚上了架子。上个玩家在里面装了个 Windows 2012 Server 评估版，俺觉得碍眼就用 Fedora 把它替代了。如图：

。分享一点经验：风扇声音确实有点大，如果只插上一个电源开机后的几十秒，和半匹~一匹马力的吸尘器差不多。（机器认为是故障，所以风扇不降速）2. 如果插上两个电源，正常运行的时候，风扇声音会下降很多很多。如图：

。3. 32 条 8GB 内存，在运输过程中可能会松脱，松脱的话黄灯会亮。4. 软起动，例如 reboot , 不会再发出喷气机般的巨响。5. 耗电量明天再测。电脑和耳机有啥关系呢？俺打算用这个电脑来仿真电路，而且这个电脑还不够一个 Sennheiser HD800 贵。您信吗？俺信了，而且买回家了。256GB 内存（32x8GB）+ 24核CPU (4X6c) 的Dell PowerEdge R900

当然，这是俺 DIY 家庭微型集群的第一步，敬请大家指点：。贝奥武夫机群（Beowulf cluster），又称贝奥伍尔夫集群，是一种高性能的并行计算机集群结构，特点是使用廉价的个人电脑硬件组装以达到最优的性能/价格比。得名于古英语著名史诗《贝奥武夫》。于1994年最早在NASA为Donald Becker等人开发，是目前科学计算中流行的一类并行计算机。最常见的方式是把相同个人电脑作为组装单元，运行Linux或BSD系统。各个单元之间通过小型TCP/IP局域网和有关的程序库来分配计算任务和通信。常用的并行程序库包括MPI和PVM。【更新】运行了一夜，没有什么问题出现。每一条ECC内存似乎都是好的：dmidecode -t 17# dmidecode 3.2Getting SMBIOS data from sysfs.SMBIOS 2.5 present.Handle 0x1100, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 1Locator: DIMM A1Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1101, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 1Locator: DIMM B1Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1102, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 2Locator: DIMM C1Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1103, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 2Locator: DIMM D1Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1104, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 3Locator: DIMM A2Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1105, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 3Locator: DIMM B2Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1106, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 4Locator: DIMM C2Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1107, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 4Locator: DIMM D2Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1108, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 5Locator: DIMM A3Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1109, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 5Locator: DIMM B3Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x110A, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 6Locator: DIMM C3Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x110B, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 6Locator: DIMM D3Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x110C, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 7Locator: DIMM A4Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x110D, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 7Locator: DIMM B4Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x110E, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 8Locator: DIMM C4Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x110F, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 8Locator: DIMM D4Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1110, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 9Locator: DIMM A5Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1111, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 9Locator: DIMM B5Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1112, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 10Locator: DIMM C5Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1113, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 10Locator: DIMM D5Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1114, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 11Locator: DIMM A6Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1115, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 11Locator: DIMM B6Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1116, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 12Locator: DIMM C6Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1117, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 12Locator: DIMM D6Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1118, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 13Locator: DIMM A7Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x1119, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 13Locator: DIMM B7Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x111A, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 14Locator: DIMM C7Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x111B, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 14Locator: DIMM D7Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HMP31GF7EMR4C-Y5D5Rank: 4Handle 0x111C, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 15Locator: DIMM A8Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HYMP31GF72CMP4D5Y5Rank: 4Handle 0x111D, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 15Locator: DIMM B8Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HYMP31GF72CMP4D5Y5Rank: 4Handle 0x111E, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 16Locator: DIMM C8Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HYMP31GF72CMP4D5Y5Rank: 4Handle 0x111F, DMI type 17, 28 bytesMemory DeviceArray Handle: 0x1000Error Information Handle: Not ProvidedTotal Width: 72 bitsData Width: 64 bitsSize: 8192 MBForm Factor: FB-DIMMSet: 16Locator: DIMM D8Bank Locator: Not SpecifiedType: DDR2 FB-DIMMType Detail: SynchronousSpeed: 667 MT/sManufacturer: 80AD7FB380ADSerial Number: OmittedAsset Tag: OmittedPart Number: HYMP31GF72CMP4D5Y5Rank: 4[root@fat4u ~]#[root@fat4u ~]#散耗功率 652W （平稳） ~ 750 W (启动后10秒内)

【待续】

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使用「电子垃圾」级的电脑还能用得舒服是一种怎样的体验

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