Category: Hardware 硬件

(Updated, 2020 Jun) Prevent Debian Linux randomly reboot on Biostar NM70I-847

Disclaimer: The article here is provided “as is” without any warranties. The article may not suit your situation. Use at your own risk.

I have a NM70I-847 motherboard, and I installed Debian 9 Stretch on it recently. After installation, the system began to reboot randomly without any warning.

I used to run Debian 7 Wheezy on this motherboard, the RC6 sleep feature of the CPU’s graphics need to be disabled to prevent such issue. It should be very easy to fix just need to add parameter “i915.i915_enable_rc6=0” to grub boot option.

But the method seems not working (or deprecated) — after applied the fix computer still keep rebooting on its own. Message like the following can be observed from dmesg:

i915: unknown parameter 'i915_enable_rc6' ignored

Yep, that’s why this fix is not working, because this parameter has been ignored by system. Continue reading (Updated, 2020 Jun) Prevent Debian Linux randomly reboot on Biostar NM70I-847

一例诡异的 USB 3.0 扩展卡和主板 USB 冲突的故障

主角：一块 2012 年买的主板 Biostar NM70I-847。(Intel NM70 芯片组集成 Celeron 847 CPU)

主板后部 2 组共 4 个 USB 2.0 插口。主板上有 2 组 USB 2.0 插针（F_USB1和2），那么这块主板一共可以支持 8 个 USB 2.0 插口。主板是 ITX 版型，所以只有一个 PCI-E 2.0 x16 插槽。我之前在 PCI-E 槽内安装了一块 USB 3.0 扩展卡，用以提供 USB 3.0 支持。

主板目前被用在 NAS 上，后面插了一个装了 SD 卡的读卡器用来安装 Linux 系统。因为不太喜欢主机后面凸出一段，所以我最近购了 9-pin 转 2 x USB 转接线，准备将读卡器挪到机箱内部。

屁颠屁颠的把转接线插到主板的 USB 插针上，接上读卡器，开机——侦测不到读卡器……我又接上键盘试了下，结果也一样。

因为以前用过该主板的 F_USB 所以我觉得主板上的插针应该没有问题，再三检查了 BIOS 设置后，也确认 USB 并没有被禁用。甚至我把 BIOS 设置都重置过了，还是这样。 Continue reading 一例诡异的 USB 3.0 扩展卡和主板 USB 冲突的故障

Problem: AMD FX 6300 and Asrock 970 Extreme4 cannot run DDR3 1866

Just finished an upgrade to one of my computers, and the upgrading process didn't go flawlessly. That's why I decided to write this post.

Prologue

This computer which I just upgraded was built in mid 2013 with an Asrock 970 Extreme4 motherboard (because I was want to make use of an old AMD Athlon II X4 620 CPU). Because the price of DDR3 SDRAM was soaring in that time so I only installed two 4GB DDR3 1333 (PC3-10600) modules.

This computer has been used as a KVM virtualization server for a long time and I upgraded the CPU to FX-6300 recently to achieve higher performance. Obviously, the 8GB RAM has become insufficient for this role now. The price of DDR3 memory is very low these days, and for another reason because I’ve got some coupons so I thought it’s time to do an upgrade. I purchased four Kingston Fury DDR3 1866 (PC3-14900) 8GB modules online, and was delivered yesterday. The price was good, cheaper than 1600 (PC3-12800) modules. Continue reading Problem: AMD FX 6300 and Asrock 970 Extreme4 cannot run DDR3 1866