Hi guys. I've been lurking around here for a little while now, and have recently built my first PC geared toward overclocking. Unfortunately, it looks like my first post is going to be problem-related. 
Anyway, I've had my computer built for about a week now, and everything has been running smoothly until today. When I woke my computer from sleep this afternoon, I started noticing random incorrect pixels, lines, even polygons on the screen. It happens frequently when there's a lot of redrawing, like when I'm scrolling or resizing a window. The computer was simply idling when it went to sleep, and I was in the room when it did. I have a new MSI R7870 card that comes factory clocked at the following settings:
Core Voltage: 1168 mV
Core Clock: 1050 MHz
Memory Clock: 1200 MHz
The temperatures are normal. It's currently idling at 26°C.
I've noticed that if I drop the core clock down to 1000 MHz (the level for a standard AMD Radeon HD 7870 card), the issues seem to mostly go away. However, I still get one or two stray pixels every so often. I have not yet attempted to overclock the card, but from reviews I read it should theoretically be a decent overclocker.
It feels like as the day goes on it may be getting worse. Feels like more pixels, more lines.
So, am I correct in assuming that the card is likely failing and needs to be RMA'd?
Here are a few other potentially relevant system specs:
Processor: 3770k @ 4.5 GHz
Motherboard: ASUS P8Z77-V DELUXE
PSU: Corsair HX750
Edit: Added example screenshot of one of the "polygons." Think it's going back in the box...
polygon.png 339k .png file
Edited by FrtWiggins - 5/6/12 at 6:30pm
Anyway, I've had my computer built for about a week now, and everything has been running smoothly until today. When I woke my computer from sleep this afternoon, I started noticing random incorrect pixels, lines, even polygons on the screen. It happens frequently when there's a lot of redrawing, like when I'm scrolling or resizing a window. The computer was simply idling when it went to sleep, and I was in the room when it did. I have a new MSI R7870 card that comes factory clocked at the following settings:
Core Voltage: 1168 mV
Core Clock: 1050 MHz
Memory Clock: 1200 MHz
The temperatures are normal. It's currently idling at 26°C.
I've noticed that if I drop the core clock down to 1000 MHz (the level for a standard AMD Radeon HD 7870 card), the issues seem to mostly go away. However, I still get one or two stray pixels every so often. I have not yet attempted to overclock the card, but from reviews I read it should theoretically be a decent overclocker.
It feels like as the day goes on it may be getting worse. Feels like more pixels, more lines.
So, am I correct in assuming that the card is likely failing and needs to be RMA'd?
Here are a few other potentially relevant system specs:
Processor: 3770k @ 4.5 GHz
Motherboard: ASUS P8Z77-V DELUXE
PSU: Corsair HX750
Edit: Added example screenshot of one of the "polygons." Think it's going back in the box...
polygon.png 339k .png file
Edited by FrtWiggins - 5/6/12 at 6:30pm
