My Monitor Doesn’t Work Or Turn On / PC Does Not Boot – How Can I Solve This Issue ?

You come home and switch on your system, and the system decides to shock you! This post is part of a series what I call ‘Boot-up Troubleshooter’, with the aid of which, you’ll find solution to the most common boot up problems.

You may face one of the two basic problems while booting up your system :

1> The PC appears dead, ie. the monitor is blank, nothing shows up in your monitor,

2> The PC refuses to boot up completely, i.e. it starts the boot up process, but stops half way through before completion

If you are facing any of the problems, read further. Lets take it case by case, to start with

PC appears dead / monitor is blank / nothing shows up in the monitor when computer is swiched on

May be it sounds silly, but the first thing you need to check is whether all the power cables are connected properly. At times, everything will be right and a loose connection in the network of wires can be creating problem. Check if there is power available to your PC. This should be the first check, not only in case of your computers, but any other electronic or electrical appliances.

There are LED’s and something called a ‘power supply fan’. Check if the LEDs are working and the power supply fan is blowing. When you switch on your PC, the lights on the keyboard should light up, check if you can see that working fine. If they are working fine, then the power supply is pretty much fine.

If your answer was a no, then check one of the following:

> Is there power at the wall socket? The easiest way to check this is to plugin another electronic appliance and see if that works fine.

> Are you using any surge suppressor or any other similar device? If you are using anything like that, try removing them and see if the PC works fine after that.

> Check PC’s power cable and also most modern PC’s have an on/off switch at the rare of the CPU case. Make sure it’s ON.

If none of the above is causing a problem, then you need to get a technician and check if the PC’s power unit is defective and may need a replacement for it. The other possibilities are that you may be facing any¬† one of the three potential problem, that is either the monitor, graphics system or the motherboard is faulty, which needs replacement or repair.

What Is Raised Floor Cabling

In a standard raised floor cable setup. Horizontal and vertical bars are placed on the actual floor which creates a raised grid like structure. Inside this grid, flat panels are fixed and under this raised surface, all tupe of cabling is laid out. In some cases the chilled air is also pumped through this false flooring.

Raised floors is a good in terms of aesthetics as long as the complete cabling goes beneath the false raised floor and reaches the servers through the bottom cable sockets of Racks. So, it is mostly invisible from outside making the place look cleaner and neat. The other benefits of Raised Floor cabling are heat management and easy access to the hidden cables.

Cables in a raised floor setup should be run through the raceways ( cabling channels ). This helps protect them from interferences caused by power cables, security devices and fire suppression systems which are also generally laid down in the same raised floor area. Raceways also help in the distribution of cool air.

Almost all type of cabling such as structured network cabling, electrical cables, KVM wires and if required telephone wires, all go through this grid and pass through the bottom of each rack location power receptacles. Then these wires are passed into and connected through the Rack patch panels. The child air is pumped to the room through the placement of solid and perforated floor tiles.

And as discussed earlier using a raised floor setup one can make most of the patch cords and pathways invisible by keeping them away from the sight. This not only enhances the aesthetic value of the room but also makes the devices less prone to damage or getting manhandled.

But, one problem which we face most often with false flooring deployments is that, if your datacenter is scaling up rapidly and you have not planned the growth properly while deploying the datacenter, then there is a chance of the false flooring not taking the load of the equipments. But with a bit of planning such kind of issues can be tackled easily.

What Are The Different Type Of Cabling Techniques In Data Centers

We take a look at most commonly used cabling techniques in data enter and discuss their advantages as well as downsides.

There is a dire need for better cabling management in your datacenter. It’s not just about the network cables, but also the KVM, Power and all other sort of cables which you use in your datacenter. Cabling management, if not done properly, may lead to major operational complications such as cooling problems difficulty in identifying cables, performance loss and so on.

Cabling Pathways
As we all know datacenters have high density networks and equipment. And, high density equipment requires high density cabling systems. These high density cables are essentially Flat ribbon like cables which eat uo less area and can be easily stacked and structured. Higher density cabling components can help reduce the amount of floor space, rack space and associated costs.

Along with the high density cables, proper cabling raceways and pathways in the datacenter are a must. These pathways make sure that the cables are isolated from any other kind of interferences. So for example, a network cable and a power cable running parallel could cause loss of quality in the network stream due to interference. The raceway makes sure that the cables don;t just hang in between and get tangled.

Generally the pathways consist of a combination of accesses under a raised flooring system or overhead cable tray or both. Now we will have a look into the difference and benefits between the two approaches :

1> Raised Floor Cabling

2> Over Head Cabling.