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4.0 Hardware and Network Troubleshooting (Building a customized PC…
4.0 Hardware and Network Troubleshooting
4.5 - Given a scenario, troubleshoot and repair common mobile device issues while adhering to the appropriate procedures.
:recycle:
No display
:warning:
Remove battery, put it back in, and turn it on. :check:
Overheating
:warning:
Avoid sunlight and check app usage. :check:
Touchscreen non-responsive
:warning:
Restart the phone; different ways depends on the brand of the phone. :check:
Common symptoms
:
4.2.Given a scenario, troubleshoot hard drives and RAID arrays with appropriate tools. :warning:
Common Symptoms
:!:
Failure to boot :red_cross:
:check:
1.
Check your cables.
2.
Check boot sequence in BIOS.
3.
Check for removable disks (
especially USB)
4.
Check for disabled storage interfaces. :warning:
5.
For new installation, check the hardware configuration.
6.
Try the driver in a different computer.
Loud clicking noise :red_cross:
:check:
1.
Loose components can rattle.
2.
Hard drive scraping noises and clicking.
3.
Check fans for obstructions
4.
Blown capacitor.
Booting to an incorrect device :red_cross:
:check:
1.
CHKDSK
2.
Set boot order in BIOS configuration,
3.
Confirm that the boot device has a valid OS.
RAID failures :red_cross:
:check:
1.
Missing or Faulty RAID controller.
2
.Each RAID is different.
3.
Don't start pulling drives until you check the console. :warning:
S.M.A.R.T. errors :red_cross:
:check:
1.
Self- Monitoring, Analysis, and Reporting Technology.
2.
Avoid hardware failure, look for the warning signs.
3
. Schedule periodic disk checks.
TOOLS
:fountain_pen:
Screwdriver
External enclosures
CHKDSK
FORMAT
File recovery software
Bootrec
DiskPartkiss
Defragmentation tool
4:4 Given a scenario, Troubleshoot wire and wireless networks with appropriate tools. :warning:
*Common Symptoms
: :red_flag:
Sulution
:checkered_flag:
Intermittent connectivity
:warning:
Check the system tray for broken LAN icon or message. May be problem with the switch or wireless access point.
IP conflicts
:forbidden:
Windows will identify a duplicate, Two identical IP address will conflict, Reboot or reset the network adapter.
No connectivity
:no_entry:
Check for link light,Ping loopback (127.0.0.1),Ping local IP address,Ping default gateway, Ping devices on routers's other side. :
**Hardware Tools
:recycle:
Cable tester, Loop-back plug, Punch down tools, Tone generator and prove,Wire Strippers Crimper, Wireless locator
Command Line Tools :recycle:
PING,IPCONFIG / IFCONFIG, TRACERT,NETSTAT,NBTSTAT, NET, NETDOM NSLOOKUP
Building a customized PC
Audio / Video editing Workstation
Specialized audio and video card
Dual monitors
Large fast hard drive
Home Server PC
Media Streaming
File Sharing
Print Sharing
Gigabit NIC
RAID Array
Thin Client
Basic Applications
Meets minimum requirements for selected OS
Network Connectivity (the best speed you can provide)
Virtualization Workstations
Maximum RAM and CPU cores
Graphic / CAD / CAM design workstation
Multi Core Processor
High End Video Card,
Maximum RAM