Most of the noise from PC is caused by the CPU-Fan, and the internal ventilation fan inside the power supply unit(PSU).
The Intel D510mo has already taken care of the CPU-Fan, because it has none. This is a passive cooling CPU, which has only a heatsink.
The fan noise comes from PSU is more tricky issue. Due to the small form factor of the casing, the standard size desktop PSU just won’t fit into the casing.
And to make the machine to be totally silent (Zero Noise 0db), I ordered the picoPSU online.
The picoPSU is a specially built PSU, which takes 12V DC input to supply the power for the motherboard. Combine the picoPSU with a battery brick(which convert the AC 240V to 12V DC), you get a totally silent PSU.
繼續閱讀…
Few weeks back, I killed one of my PC(which serves as the Home NAS + Download station) while attempting to replace its harddisk.
This machine had been running for 3-4 years on 24×7 basis, and its hardware specs were quite aged(P3, 256MB RAM, 40GB HDD). ~~~ (Rest in peace).
I need to rebuild a new machine as replacement.
The main functions of this machine will primarily be the Home NAS(Network Attach Storage) and as the Download Station. I also want it to be the HTPC(Home Theater PC) in the living room.
With these requirements in mind, I am looking for machine that must be ultra-low profile, in terms of form factor(size) and power usage, but yet powerful enough to play the 1080p contents. I am not going to play games or do any video editing on it, so I don’t need a powerful CPU or GPU.
繼續閱讀…
其实ios 4.0已经推出了有一段日子了。（写这帖时，ios4.1已经可以在iTunes下载了）
由于近来实在太忙， 路人甲一直没有把水果机(3Gs)upgrade firmware, 还是用着3.1.2的版本。
趁着这个Hari Raya的三天假期， 路人甲终于把3Gs灌了ios4.0（注意：4.0.2和4.1暂时还不能Jailbreak)
Backup + Upgrade + Restore + Jailbreak 差不多用了5个小时, 还蛮大工程的。
升级后的iPhone的速度感觉上比3.1.2时慢一点（但是还是能够接受的程度）。
ios4.0的好处当然就是终于能够在iPhone上multi-tasking了， 有了Folder功能， 而且Camera的shutter也变快了。(ios4.0的全Feature list)
用了2天， 还算稳定， 没有hang机过（jailbreak过后）。
正在Upgrade Firmware中的3Gs
成功升级到ios4.0
