PC slowing down

[mikef]

I have a Mac; dual Xeon, 128GB, PCIe SSD, R9-280X

I'd like to figure this issue out though

[mikef]

Missed that one, the chipset drivers, next on the list to try.

I know from experience that getting a Windows install where I want it takes a couple of days work, I don't want to go through that and find it's still the same; it's still an option if all else fails

[mikef]

I honestly can't tie it back to any specific hardware change, and I've been gradually moving work from a couple of other dev boxes onto this one

The last major hardware change was changing two GTX580s for a GTX970

[mikef]

it's not so much patience as keep having to travel away before achieving resolution

I did follow TN's advice on Friday and update the chipset drivers; I've had to travel out to Silicon Valley Saturday morning so not really had time to prove that the PC will stay up long term

I could clone the OS to another disk and install Win 8 again from DVD onto a clean desk, those are on the list if it's still misbehaving when I get back

[mikef]

Win 10, in-place upgrade from 8.1, but the issue was there before I upgraded

MB looks fine and the Asus boards have pretty comprehensive on board diagnostics which aren't showing any error conditions

[mikef]

To close this topic off

Now back in the UK. Did a rebuild with a new SSD and Windows 7, that ran OK for a couple of days, so did a clean install of Win 10 and spent a shedload of time getting everything reinstalled and configured as I like it on this dev box

That's been running and sleeping over the past 24 hours and seems OK now, so those who said "reinstall Windows" were quite right. I had sort of hoped that the days of clean installing Windows regularly were behind us

Thanks all for your help

[mikef]

Yep, done absolutely everything suggested here, complete reinstall of Windows was the last resort