No Video after changing MB And CPU

[Riggby]

I am trying to upgrade my son's system by installing an ABIT NF-7 2S, and an Athlon 2600+CPU/fan. I have checked posts that MB sits on to make sure there is no shorting going on. I realize that I will need to make changes to his original HDD, Seagate40GB @7200rpm, for it to recognize the new board, but shouldn't I at least see something?

It is clear that the monitor(I've tried 2 separate working monitors) is not being recognized. The standby light stays orange when booting up; it never turns green as it should when on. As mentioned, this happened on two different monitors. All other lights including video card fan are functioning. Case fan also fine. Using Antec purepower420Watt. Kingston DDR2700 Ram is new, and in working order. I tested it on another machine.

I already sent the MB back to NewEgg and they swapped it out, so I doubt that could be the cause. What's the chance of 2 defective MB's in succession?

I even tried putting WinXp install CD in one drive,hoping to boot up via the CD, but the CD drive did not spin up at all. It was as if I never put anything in it. So that means even though the light is on, on the CD player, it's not really linked to anything. All connections for master and slave and IDE 2 are all correct.

What can I fix this situation without throwing it out my window?

 

[paparazi]

A few things to check:

If it has them? you have to set 166 on the front sde bus jumpers on the motherboard (refere to manual)

That you only have brass standoff mounts lined up with the brite solder ring mounting points on the motherboard, NO WHERE ELSE! shorting to ground.

That you have reset the cmos clear and or removed the lithium button battery for a few minutes

That the video card in pushed firmly in place and given a power connector if needed

That you have remembered to connect the additional P4 power connector to the motherboard, as well as the normal power connector

That you may have fitted the heatsink/fan unit the wrong way around and have overheated the CPU as a result (only takes a few seconds to destroy an Athlon CPU with an incorrectly fitted cooler)

Recess in the base of the heatsink must be positioned so it is located over the raised cam box of the CPU socket otherwise the heatsink does not sit squarely on the processor core (and with a small application of paste)

These symptoms are similar to those of:
A dead processor
A faulty power supply (down on one power rail

Take you PC back to "bare minimum" pull out all additional addon cards, front panel wires, IDE connections etc

Just have: the motherboard with connected power supply, 1 stick of ram, graphics card, CPU with cooler.
Momentarily touch the two header pins with a small flat blade scewdriver.

Does it post now?
If not change the PSU, does it post now?
If not change the CPU, does it post now?


Martin

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[Riggby]

Martin,

Which two header pins are you referring to? I've already done everything else you suggested. Thanks.

Steve