Computer - fuzzy liney screen

[elsiegee40]

I can't understand why everyone is trying to swap out components of a brand new machine that doesn't work. It needs to go back. It's not up to OP to work out why it doesn't work, he just has to have the evidence that it doesn't... and the photo he took is pretty clear.

[ICTLTD]

There is no way in hell it's a monitor problem because monitor controllers are not capable of outputting that on their own or misinterpreting what comes from the graphics controller

 

I cant agree with that, they covert signals they are more than capable of doing that, a bad connection, dry joint could easily cause it.

 

It is reasonable to find out if it is the monitor or the PC on a new machine, it is not changing the memory IMHO. Especially when they could accuse the OP of damaging it.

[synaesthesia]

I'm more aware of the signal processing capabilities of monitors than many would imagine. I do agree with you @elsiegee40 but it depends on the individual IMO; it's a 2 minute job and all of our suppliers would be happy to accept our diagnosis and arrange return/supply of replacement parts. Something you may already have some of, and lessen the involved downtime.

Some suppliers may be less happy about it though; in all honesty it sounds like yours might be one of them. Keep shouting at them.

[ICTLTD]

Some suppliers may be less happy about it though; in all honesty it sounds like yours might be one of them. Keep shouting at them.

No, I supply them. Just that we supply ones with Diagnostics SW.

 

I agree the mem is an easy job, but on an intermittent fault I would rule out the external factor first (monitor and cable). That is the only bit with a seperate warranty I presume on his PC's (Monitor warranty is usually direct) if he can rule that out he can just boot the PC back at them for them to sort out without delving inside.

 

On a new build it should be treated as a DOA IMHO.

Edited October 22, 2012 by ICTLTD

[gshaw]

Agree with above, swap monitor and cable for known good items and if it still doesn't work get it fixed under warranty.

 

It's not your problem to diagnose or worry about, if it doesn't work out the box get the manufacturer to sort it.

[synaesthesia]

In industry and high availability this is something taken into account by the majority of suppliers; they work around the fact that their customers are often people with as many qualifications as them and require things to be working very quickly. Some companies offset that with damn quick engineering turnarounds, otherwise others are very happy to let people do a *reasonable* diagnostic and swapout. Misco and Stone are certainly happy with that, as are Dell despite having same-day callouts. Not tried HP, never had to. Ebuyer are end user orientated so are not.

 

Anyway - we could go the opposite way - run memtest86 on it!

[MrEprise]

It is not unknown for onboard graphics to fail. I have seen many cases of the above being bad onboard chip, connector or cable. I have never seen bad RAM produce that, blue screen would happen if the ram was that corrupt, also it would be more intermittent with RAM where as this seems to be happening the same each time it boots from the sounds of it.

 

You don't need bad RAM to produce that screen effect, a stick not making a good connection on all pins in the RAM slot is enough to end up with varying degrees of screen corruption/artifacts.