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***official amd 83x0 overclocking thread***

Thanks dude. It's aged me several years though !!

I did find some time to fit in some modding today. Ordered three cables, cost £26 :eek: Still I suppose if you want the best... Any way here they are.



Two 8 pin PCIE all red and a Molex - SATA so I can finally power up my DVD drive.



Out they came and in they went..



Bit of love and some tweeking later...



And my desk.



And oddly enough I've just bought one of these, straight from OCUK here.

 
Andy have you monitored the power draw from the wall yet?

When I'm hammering the 7990 it's going above 650w and that's not including the CPU maxing.
 
how can i monitor my power draw? any easy way? i got a feeling im near the limit of my PSU, as ive had a few switch offs since installing my 290, mind you it could have been a conflict with msi afterburner and CCC both trying to apply +50 power to the card lol, not sure. I uninstalled msi and put CCC to +0 and its been fine since.

If i go AMD i will definitely swap my PSU for an 850w Gold Corsair PSU, should have more than enough power for my 290 + a Piledriver
 
Still no luck, tried taking the CMOS battery out, reseated CPU, RAM and GPU. Can't use original bios, won't boot at all so can't even get display.

Don't think I can RMA it as I thought the CMOS battery was behind the button and prized it open with a knife lol now it's bent and mangled hehe

So going to order a new board tonight on my trusty iPhone!
 
It used to be far more daunting but has improved over time. Even hardware now ships with a second BIOS in case you balls up the first so you are just unlucky.
 
In fact if I had read the manual thoroughly pre-build this may have been avoided, it warns about any disruption during bios updates with "do not restart the system, may cause total boot failure" (something like that!).
 
BurntProc said:
The crosshair should at least have a removable bios chip. If you email asus they should be able to send you a replacement bio? Probably cost like £2 for postage.

There are also stores that stock them.

This guy shows how to fit it (he's on a an older version of the board):

http://www.youtube.com/watch?v=pLEQoWRq41k
Click to expand...

Good shout mate!

Found a site that specialises in bios chips, although crosshair v formula-z isn't directly listed, the same family are, and they all run the same chip. Worth a shot, can always RMA new board when it arrives if the chip works.

http://bios-repair.co.uk/Programmed-BIOS/Asus/Socket-AM3+Asus.html
 
Martini1991 said:
I have an FX8320 coming tomorrow, normalish cooler, so probably only going for 4.6.
Click to expand...

I think 4.6 is plenty, especially if your card supports mantle.

I have a H100i and still couldn't get more than 4.6 IBT stable (maybe I was unlucky with silicone) and used up to 1.52v for 4.8, temps in mid 60's but still failed IBT. 4.6 @1.45v was the best I could do and the temps were good as gold.
 
Mathematics said:
I think 4.6 is plenty, especially if your card supports mantle.

I have a H100i and still couldn't get more than 4.6 IBT stable (maybe I was unlucky with silicone) and used up to 1.52v for 4.8, temps in mid 60's but still failed IBT. 4.6 @1.45v was the best I could do and the temps were good as gold.
Click to expand...

4.6GHz is a bit unlucky with that board and an H100i, you should be looking at 4.8GHz or better, but I agree that 4.5-4.6GHz is an ideal point to get to in terms of good overall performance vs price/temps/etc.
 
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