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

Good morning :)

I flush the bios, went into the overdrive and both were working (catalyst 13.11 b9.2 overdrive and AMD overdrive toolkit)

Went back to the bios and had a look what was different this time.
To "my horror", realised that C1E, C6 and APM were "ENABLED". I turned them off, went to windows. No overclocking. Humm.
When back out again, activated C1E/C6/APM, overclocking is back with both overdrives and no issue.

I pulled the cpu above 5Ghz, and failing stability test at 5303 with 1.5125v while stable at 5193 @1.5v
5170OC_zps4b54fb6b.png


FYI at 5193 the benchmark is 12826

5170benchmark_zpsab7bb1b5.png
 
alex_123_fra said:
Excellent thanks. So you use this to install on top of catalyst control centre and then use this overdrive to overclock rather than the one within CCC?
Click to expand...

Yes, but is not on top of the other catalyst, but parallel.

However as with the MSI Afterburner, have off all Overdrive options from the CCC (or else they try to overwrite each other).
 
Just added a second cpu fan and completely replaced all case fans with NF14s, temps and noise levels a little lower (as expected), but oddly I just stomped my previous best in cinebench by quite a way...

740 vs 729 previous best at same OC. Usually I would average around 725 with these settings. Could it be that by dropping temps slightly the VRMs are having an easier time - or a similar effect?

t53795.png
 
BurntProc said:
Just added a second cpu fan and completely replaced all case fans with NF14s, temps and noise levels a little lower (as expected), but oddly I just stomped my previous best in cinebench by quite a way...

740 vs 729 previous best at same OC. Usually I would average around 725 with these settings. Could it be that by dropping temps slightly the VRMs are having an easier time - or a similar effect?

t53795.png
Click to expand...

Yes it is possible that VRMs were slightly throttling your cpu. Nice result.
 
Rig 2 update. So this is the rig that I fitted a badly wired extension to that I bought.

Rig became very unstable. Could not even hold the clocks at stock running LinX. I figured the CPU was damaged, however it was exhibiting the same issue as before. No overclock would work (froze as soon as you got to Windows even @ 4ghz on 8 cores stock volts) and when running LinX it would down clock to 2.9ghz and the voltage was all over the place.

So I figured I would try and fit the XFX PSU to rule the Alienware one out once and for all. When I was there I found this on the master plug...



Burnt brown wires. So I looked at the connector..



Two 12v pins had totally melted their holders. So I removed the wires and cut the holders away to clean it up. Then I took a unused PCIE power connector (PSU has 8) and took two 12v wires and after cutting away the burnt cable I sent those two clean wires up to the ATX connector. Sure enough, 4ghz rock solid in LinX no throttling no crashing.

So the moral of this story? when you buy cable extensions check them bloody thoroughly as the little dude with the slanted eyes no carey if he blowy up your PC.

/FUMES.
 
None more than what I have posted :)
Only that I drop the FSB a to 216 and raised the multi to 24x (my RAM was complaining).

Use the AMD benchmark to run 2 mins for every overclock step, until the first time it fails. Then drop the OC (or raise the volt) and try. When you cannot put more volt and fails at 2 mins benchmark drop the overclock.

Then run it for ~10 minutes. If it fails drop the overclock, if not put it to run for another 30 mins and you are done.

My limitation is the unstable voltage that my motherboard provides (GA-990FXA-UD3 2 1/2y old)

And really want to spend some money to get better motherboard (ASUS), however justifying the cost is what matters.

Cooling isn't an issue for me, the Magma fans on the H100 doing superb job. Tried Prime 95 and hits 48C while idles at 0 with 4 of them. (removed last night is overkill even if they are quiet fans at 18db)

And here is a pick after playing Crysis for some time yesterday. (none believed me that I have 0C while idling).



Temps_zps6446ce0d.png
 
Panos said:
My limitation is the unstable voltage that my motherboard provides (GA-990FXA-UD3 2 1/2y old)

And really want to spend some money to get better motherboard (ASUS), however justifying the cost is what matters.


And here is a pick after playing Crysis for some time yesterday. (none believed me that I have 0C while idling).
Click to expand...

OK will give your tips a twirl.

Why not keep an eye on the B-grade section for motherboards, they were selling the Crosshairs the other day for £99 or thereabouts - a steal at that price!

0c is due to the sensor not being warm enough to put a meaningful value on it. Not that I believe they are truly accurate, however give an idea on when they are performing being used in heavy applications.
 
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