Defective GeForce 8400 GS or monitor?

[mxnerd]

Hi:

I just replaced my 2-year old defective Samsung 204B monitor with a brand new Samsung 2053BW monitor which Samsung given me last week. The defective 204B has a yellow triangle on the upper left corner and require about 3-5 mintutes to completely turn on.

For the first 2-3 days, it seems the new LCD monitor has no problem. Now, during the usage of computer & monitor, once in a while in a day, the LCD display would gradually become dithered (mesh like).

If I turn off the monitor and turn it back on immediatley, then it's back to normal, but might be good for a minute or so, then it became dithered again. Turn it off then back on and it's normal again. repeated this process for several minutes and it can be normal for a good while. But you never know when it's going to happen again.

I have checked the cable connection and it was nice and easy.

Is this the problem of new LCD monitor or the video card? My video card is Gigabyte Geforce 8400GS, model GV-NX84G256H. Could it be a defective nVidia video chip, the news cirulating on the net that all of the 8xxx series chip are defective?

I don't have extra PCI-E card to test, so can anyone give me an idea? Thanks.

 

[thilanliyan]

I was gonna say it might be the video card due to the reports of the defective chips. Easiest way to test would be to get another vid card...but you say you don't have another one. Can you get another one from someone else to test? Also, if Samsung gave you that monitor it could in fact be the problem since the one they sent you was refurbished?

 

[bharatwaja]

Originally posted by: mxnerd
Hi:

If I turn off the monitor and turn it back on immediatley, then it's back to normal, but might be good for a minute or so, then it became dithered again. Turn it off then back on and it's normal again. repeated this process for several minutes and it can be normal for a good while. But you never know when it's going to happen again.

This tends me to think that the monitor is the issue here.... Take it up with samsung....

The 8400 GS problems don't go away when the monitor's switched off and on again.... It doesn't seem that logical.... Should be the monitor....

 

[mxnerd]

Thanks.

I think I'll try to connect another LCD monitor on the video card, since it has an analog and a digital connectors. Will see if both monitors will go dithered at the same time.

 

[mxnerd]

After another 2 days of usage, finally ound the culprit! It's the brand new Samsung 2053BW!

I attached 2 LCD monitor to the same geForece 8400 GS, the same symptom appeared again, and only Samsung monitor has this problem, the other Acer monitor shows no problem.

Very disapponied with Samsung quality control. Had to do an RMA again. Probably won't buy another Samsung product. Had bad experience with their DVD burner too.

 

[postmortemIA]

are you sure they didn't send you refurb ? that is what regular warranty does.

 

[mxnerd]

No, i's a brand new one and I can tell it's a brand new one from the packing. They states it when they say they don't have an even replacement for 204B.

I do like ther service, though. They don't need you to ship it back. They will ship the replacement to youir local UPS store and inform you. You just bring in the bad one and swap it at the UPS store. That's very good.

 

[mxnerd]

Called Samsung on 8/27, got a refurbished monitor today (9/24), took almost one month this time! The monitor has scratch everywhere, and the neck of the monitor will not tilt, it always stays back 10-15 degree! I reject it at the UPS store.

A side story. I bought a DVD+-RW writer 2 weeks ago from mwave and the brand new writer destroy (become non re-writable and stay blank) every single CD-RW disk I burned, 5 of them. Replace with a LG and it's all fine.

I'm sick of Samsung products, will never, ever buy another Samsung again!

Now the monitor will become blurred just occasionally, not as often as when it arrived, sometimes the symptom will occur only one or two times during 3 or 4 days. Can anyone familar with electronics components explain why is this? And is it possible the symptom will went away over time?

And, what to do with the monitor?

 

[mxnerd]

I think I was wrong. The symptom came back and now it occured several times in the past hour. Probably because of today's hot weather.

No choice but to do another RMA.

 

[Nemesis 1]

Tell me about it. My web machine just lost its samsung lcd . I will never buy another samsung product.

 

[mxnerd]

Finally resolved on 10/15/2008 . Got a refurbished replacement and seems good after more than 10 days of usage. Hope it will not break down again right before the expiration of 3 year warranty.