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Sapphire Radeon HD 3870 constant driver crashing.

Mar 6, 2007
135 (0.03/day)
Processor AMD Phenom X4 @ 2.5GHZ
Motherboard AsRock
Memory 5GB DDR2-800MHz @ 891MHz
Video Card(s) ATI HD 4850 GDDR3 512MB w/ ZEROTherm GX815 Cooler
Storage 2X Western Digital SATAII 320GB (RAID 0)
Display(s) Acer 17" LCD Model AL1716
Audio Device(s) Sound Blaster Audigy 2 ZS
Power Supply ORION 585Watt PSU
Software Windows 7 x64
I've had the card for about 8 months and ever since I got it, I couldn't overclock it, even a few MHZ or it would constantly crash. I've upgraded to Windows 7 x64 and I can't play Dragon Age: Origins for 5 minutes without it crashing and re-imaging my game. It's not overclocked at all now, though.
Aug 5, 2008
497 (0.14/day)
Hampshire, UK
System Name If you name your systems, get a girlfriend...
Processor i7 4770k
Motherboard Asus Maximus VI Formula
Cooling Custom waterloop around Black Ice GTX 360
Memory 16GB DDR3
Video Card(s) R9 290
Storage Samsung 850 Pro 1TB
Case HAF 932
Audio Device(s) Onboard
Power Supply Corsair HX750
Software Windows 10 x64

I think your crashing is not related to previous overclocking.
It could be an issue with Win7 x64.

Do a standard "update everything" regime...
- Check whether there's new BIOS for your mobo.
- Install latest catalyst (currently 9.12)

If nothing helps, you could try underclocking your card.
If that helps, that would mean that it is either:
- damaged from previous overclock
- not sufficiently cooled (dust build up perhaps ?)