Wednesday 23 November 2016

ZOOSTORM 7872-0460/A

ID: PCD12

HISTORY


Unusually, this computer was given to me because the owner was moving and would not have room for it in her new home. It's a system that I've worked on a few times in the past and remember fitting new RAM modules and a new power supply at different times. It is not old, even by modern standards, and the specifications should be more than adequate for Windows 10.



INITIAL SPECIFICATIONS


Machine Type: Desktop Tower
Model: ZOOSTORM 7872-0460/A
Year of Manufacturer: 2013
Motherboard: GIGABYTE GA-H61M-DS2 DVI
Chipset: INTEL H61 EXPRESS
Processor: INTEL CELERON G1610 2.6GHz 64-BIT (Socket 1155)
RAM: 4GB DDR3 (2x 2GB 240-Pin DIMM)
Hard Drive(s): 320GB 2.5" SATA
Optical Drive(s): DVD-RW 5.25" SATA
Graphics: Integrated (Intel)
Audio: Integrated (Realtek)
Network: Integrated (1Gbps Ethernet)
USB: 2.0 (2 Front, 4 Rear)
Power Supply: Antec 350W
Other Features: N/A
COA: Windows 7 Home Premium


INITIAL INSPECTION

The computer is in excellent condition and shows little sign of use, inside and out. Unsurprisingly, a visual inspection of the power supply and motherboard did not uncover any problems.



REPAIRS & MODIFICATIONS

  • None required

PREPARATION

After the processor cooler was cleaned and reseated, diagnostic tests were run on the main components to verify stability. No faults were found, so it was time to setup the software.


SETUP

Fortunately, Windows 7 keys still work to activate fresh installations of Windows 10, so I was able to set this system up with the very latest 'anniversary edition'. After installing all available updates and some office and media playback software, the computer was ready for it's new owner.



CONCLUSION

This can't be considered a 'powerful' computer, but for general purpose use, I don't think there would be much difference in performance between this system and a brand new one. The processor isn't up to gaming or 3D graphics work, but for website access / apps, office work, music, video etc there would be little reason to have anything more, so I'm hoping the new owner will find it enjoyable to use. The customer who have me the computer also provided a screen and printer, so this should make a great complete setup for a worthy cause.





Thursday 27 October 2016

Generic PC (AMD SEMPRON 2400+ 1.6GHZ)

ID: PCD09

HISTORY


This is a PC that has been in use for a over a decade, and so is way behind in technological advancements. It belonged to a customer that I have helped for a number of years who has now upgraded to a more modern system. Naturally, there was no use for this old relic once the new Dell tower complete with Windows 10 and an SSD was up and running, so it was given to me.



INITIAL SPECIFICATIONS


Model: None (Generic Desktop PC)
Year of Manufacturer: 2005 (Estimate)
Motherboard: ASROCK K7S41GX (REV 1.03)
Chipset: SIS 741GX
Processor: AMD SEMPRON 2400+ 1.6GHZ (Socket A)
RAM: 2GB DDR (2x 1GB 184-Pin DIMM)
Hard Drive(s): 40GB 3.5" PATA
Optical Drive(s): DVD-ROM 5.25" PATA
Graphics: Integrated (SIS)
Audio: Integrated (C-Media)
Network: Integrated (100Mbps Ethernet)

USB: 2.0 (2 Front, 4 Rear)
Power Supply: Generic 400W
Other Features: 1.44MB Floppy Disk Drive, 56K Dial-Up Modem
COA: Windows XP Home



INITIAL INSPECTION

Although the computer is old, it's in really good condition and shows little signs of use. I was pleasantly surprised to find the inside the computer relatively clean with no bad capacitors on either the power supply or motherboard PCBs. When tested, the fan in the power supply was a little noisy, but this should be easy to rectify. Although plenty of RAM is present, the processor is very out of date and isn't up to modern Internet use, never mind Windows 10. In fact, it probably won't run Linux that well either, so this will be another system to stretch the workable life of Windows XP even further.



REPAIRS & MODIFICATIONS

  • The bearings in the power supply fan were lubricated.

PREPARATION

With the fan in the power supply now running sweetly, I cleaned out the case, applied some fresh thermal paste to the processor cooler and put the system back together. The owner of the computer had been experiencing stability issues, but diagnostic tests on the RAM and hard drive showed everything to be working correctly.


SETUP

Windows XP was the only real option for this system, because everything else would have run far too slowly. With all drivers and updates installed, it booted up in no time and felt responsive in use. After the usual burn-in tests, I installed some office and media player software, but was stuck for a browser that could be reliably used on such old equipment. Google Chrome no longer supports XP, and both Firefox and Opera require processors with the SSE2 instruction set, which sadly all socket A processors lack. However, I came across a little known browser called QTWeb, which works surprisingly well on older hardware. It wasn't fast, but browsing popular sites such as BBC and Amazon was at least practical, and I was able to complete my weekly Ebuyer order without much difficulty.


CONCLUSION

Limited as the specifications are, I'm hoping this computer will find a new home and a new use. It still works fine for most general purpose offline activities, and would work well for someone who just wanted to send a few E-Mails and print off some documents, or someone who still needed Windows XP to run legacy software. The lack of processing power and instruction sets limits it's practical use online, but the QTWeb browser should provide enough functionality for basic use of Google and the Internet.

Sunday 16 October 2016

Generic PC (INTEL CELERON D 331 2.66GHZ)

ID: PCD04

HISTORY


This desktop PC was probably supplied by a local firm, as it does not seem to bear any manufacturer markings. It's built in a typical black computer case and doesn't look like anything particularly special. I took it away for recycling after setting up it's replacement (a refurbished Windows 10 unit). It was in a working condition, but was very slow.



INITIAL SPECIFICATIONS


Model: None (Generic Desktop PC)
Year of Manufacturer: 2007 (Estimate)
Motherboard: ASROCK 775I65G (REV G/A 2.04)
Chipset: INTEL 865G
Processor: INTEL CELERON D 331 2.66GHz 64-Bit (Socket 775)
RAM: 2GB DDR (2x 1GB 184-Pin DIMM)
Hard Drive(s): 160GB SATA
Optical Drive(s): DVD-RW
Graphics: Integrated (Intel)
Audio: Integrated (C-Media)
Network: Integrated (100Mbps Ethernet)

USB: 2.0 (2 Front, 6 Rear)
Power Supply: Colorsit 400W
Other Features: None
COA: None



INITIAL INSPECTION

The outside of the computer didn't show anything a miss but removing the side panel revealed some bad capacitors on the motherboard that would need replacing. In addition, the power supply fan had completely seized up. With a single core processor and original DDR RAM, this would probably run Linux better than Windows 10.



REPAIRS & MODIFICATIONS

  • 1000uF and 1500uF motherboard capacitors were replaced.
  • The bearings in the power supply fan were lubricated.
  • The DVD drive would not read disks reliably. I tried cleaning the lens in the drive several times (both via disassembly and cleaning disks) but in the end it had to be replaced.

PREPARATION

The recap was a success and the computer started up first time. Further diagnostics on RAM and hard drive did not reveal any further problems, so I was ready to proceed with the setup.


SETUP

I thought Linux would be ideal for this system. With an older but 64-Bit capable processor and plenty of RAM, I expected Ubuntu to work fine. However, I was proved completely wrong - performance was terrible. I'm not sure if this was down to the integrated Intel graphics or just inadequate processing power, but it certainly was not usable. I tried an older version of Ubuntu and even the special 'Lubuntu' lightweight build, but graphics was still unacceptably 'laggy'. In the end I gave up and installed Windows XP using a key I extracted from the registry before wiping the hard drive. This worked much better, especially when the 'Color quality' setting was lowered to 16-Bit, and the 'Classic' theme was enabled. Opera still has a version of their browser that works on XP, and this proved to be the best option in this case.


CONCLUSION

I don't have any peripherals to give away with this system, so it will be offered as a 'tower only' computer for somebody to use with their existing monitor, keyboard and mouse. It would certainly be of use for word processing, E-Mail (through a client such as Outlook Express), basic use of Google, listening to music offline or photo storage, but I think modern web apps like Facebook or Outlook.com would be probably be too slow for regular use.




Monday 25 July 2016

Generic PC (INTEL PENTIUM E2180 2.00GHz)

ID: PCD03

HISTORY

One of the first computers to be refurbished is a PC tower I build for a customer some years ago. Sadly, the customer passed away and her husband gave me the computer back as it was no longer required. This was a while ago so unfortunately some parts have been cannibalized and used elsewhere. However, the motherboard, processor and RAM are still present.


SPECIFICATIONS

Model: None (Generic Desktop PC)
Year of Manufacturer: 2008
Motherboard: Intel D945GCPE
Chipset: Intel 945GC
Processor: Intel Pentium E2180 2.00GHz Dual Core 64-Bit (Socket 775)
RAM: 2GB DDR2 (2x 1GB 240-Pin DIMM)
Hard Drive(s): Missing
Optical Drive(s): Missing
Graphics: Integrated  (Intel)
Audio: Integrated (Realtek)
Network: Integrated (1Gbps Ethernet)
Power Supply: Missing
Other Features: 1.44MB Floppy Drive, Dial-Up Modem
COA: Microsoft Windows XP Home Edition 


INITIAL INSPECTION

It's a fairly old computer, and the inclusion of a dial-up modem and floppy drive really shows its age. However, opening the case revealed a dual core processor and 2GB of RAM, which means it could probably run Windows 10. Unfortunately I was disappointed to also find several bad capacitors on the motherboard, which could be a source of major problems. Back when I was regularly building and selling computers, I remember switching to using Intel branded boards in the hope they would be more reliable but with hindsight ASUS may have been a better option. A bigger problem is the lack of hard drive, optical drive and power supply, but I have a lot of redundant parts and hopefully these missing items can be sourced relatively cheaply.


Blown capacitors next to RAM socket


REPAIRS & MODIFICATIONS

  • The bad electrolytic capacitors were replaced with new low-ESR equivalents (Source: DM Components on eBay)
  • I was recently tasked to erase a dozen or so hard drives from a suite of computers decommissioned by a school I work for. After confirming reliability with a read / write test using HDSentinel, I installed a 160GB SATA unit which should be enough capacity for general purpose use.
  • I found a Cooler Master 500W PSU in my spare components pile which turned out to be working fine, so installed this in the case.
  • I bought a cheap DVD-RW SATA drive from eBay to replace the missing one.

PREPARATION

With the new components fitted, I cleaned the processor fan and applied fresh thermal paste to the heatsink before putting everything back together. The computer turned on and displayed an image, which was a good start. Fortunately, diagnostic tests completed successfully so after flashing the latest BIOS I was ready to start installing an operating system.


SETUP

Windows 10 was installed successfully using an unofficial upgrade method and drivers for all the hardware were either included with the operating system or downloaded automatically from Windows Update. I added some office software, VLC player for playback of DVDs and Google Chrome to complete the installation. I also installed a cheap USB WiFi adapter to add extra value.


PERIPHERALS

I had a spare keyboard, mouse, 17" CRT monitor (Hansol 720E) and Brother all-in-one inprinter which had all been given to me by customers. CRT monitors take up a lot of room and have long been superseded by flat screen alternatives. However, they often offer superior colours, viewing angles and reliability compared to very cheap flat panels. This model from 2002 still works fine and I'm hoping that somebody might be able to get further use out of it.


CONCLUSION

Although performance was initially poor, it improved considerably once all the Windows updates had completely finished installing. It won't be a powerful computer for playing 3D games, but it should allow somebody to get online and send a few E-Mails. I posted the complete package on Freecycle and it was collected and off with its new owner within 24 hours.




Thursday 21 July 2016

Introduction

In summary of why this blog exists:


Many PC computers are being scrapped when they could still be usefully used.

In my job as a self-employed IT technician, many people give me older equipment when they upgrade in the hope that it might be useful to somebody. I want to use some of my resources to recycle as much of that equipment as possible. Focussing mainly on desktop PC units and associated peripherals to start with, I aim to bring the computers to a useful standard and advertise them on my local Freecycle group for collection. I am going to use this blog to document and track progress.

Here are some of the reasons that computers are replaced:
  • A hardware fault develops (such as with the motherboard or hard drive). The cost of replacing and fitting new parts needed to repair the computer is quite a large percentage of what a new computer costs, so the owner decides a new computer would be a better option.
  • The computer performs poorly. In many cases, the poor performance could be greatly improved by reinstalling Windows and/or adding an SSD (Solid State Drive). However, most computer owners do not understand this and compare the situation to that of an old car that constantly needs large amounts of money spent on it.
  • A virus infects the computer and renders it unusable, or a cold call scammer 'hacks' the computer from afar. Like the example above, many computers owners do not understand the distinction between hardware and software problems and assume the entire computer needs replacing.
  • The computer is not powerful enough to run a required piece of software.
  • Microsoft ends support for the installed operating system, rendering it 'insecure'. Because the cost of upgrading the operating system is quite a large percentage of what a new computer costs, the owner decides a new computer that comes complete with a supported operating system would be a better option.
  • A new piece of hardware is purchased that requires a newer operating system, but the cost of upgrading the operating system is quite a large percentage of what a new computer costs, so the owner decides a new computer that comes complete with the required operating system would be a better option.
  • The owner of the computer experiences one of the above problems to a degree, but also appreciates the benefits and cheapness of mobile computing, so switches to using a laptop or tablet.
Some of these reasons are certainly valid enough, but the problem with replacement is that it leaves behind a lot of obsolete technology, and lots of it gets thrown into landfill. The interesting thing is that just a few years ago this obsolete technology was current and cost 100's of pounds, but now it has an almost negative value.

What is even more interesting is that despite the lightning pace of technology, little has occurred in the realm of basic, everyday desktop PCs for several years because of the drift towards mobile equipment. This means that even a five year old PC is likely to include specifications that would run Windows 10 and provide adequate performance for web browsing, office / school work, music and E-Mail.

Admittedly, many computers I am given are older than this, so I intend to split them into two main categories:
  • Computers featuring a dual core processor, 2GB or more of DDR2 RAM and a SATA hard drive will be candidates for Windows 10. Computers with a legible Windows 7 COA can be installed directly from the Windows 10 install media because the installation routine will accept a Windows 7 product key as part of the free upgrade offer. For those computers without, there is a very effective unofficial upgrade method described here: http://dellwindowsreinstallationguide.com/windows-xpvista-to-windows-10-free-upgrade/. I'm not sure if either method will work after 29th July 2016, though.
  • Any computer that doesn't meet this specification or cannot be upgraded to Windows 10 will be a candidate for Ubuntu Linux, which is a free and opensource operating system. Ubuntu includes support for a lot of hardware and has a familiar, GUI driven interface.
I aim to pair the computers up with whatever peripheral hardware is available, such as monitors, keyboards, mice and printers.

The basic process for bringing the computers to a good, working condition will be as follows:
  • Securely erase the hard drive
  • Check the basic operation of the power supply
  • Check the basic operation of the motherboard
  • Clean the cooling system
  • Check stability of hard drive and RAM with diagnostic tests
  • Update system BIOS
  • Install a suitable operating system and associated driver software
  • Install appropriate browser and office software
  • Check the basic operation of sound and network functions
  • Check the basic operation of any bundled peripherals
If any hardware proves to be faulty, it will be repaired or replaced where possible. In situations where this is not possible, the remaining good hardware will be broken up and used to repair other computers.