Frying by overclocking a GPU or CPU?

Maybe not.

Thermal headroom seems to be the biggest problem these days.

 

How the hell did this guy unlock the multis?

Well at least he picked an apt username, because that's what most people's reactions will be when they see that!

 

@Dufus you can stop showing off now, this is like the 4th different forum/username you've posted that under

 

DUFUS LIVES

 

Must be an engineering sample or something, otherwise multipliers are locked. Then again, it's probably not too hard to fake the values CPU-z reads either.

 

No, it's legit. He actually removed the multiplier lock with a BIOS hack. Also saw a linpack from him, the gflops are true for the speed.

 

It may be a hacked BIOS, but I doubt you can take any Haswell CPU and unlock unlimited multipliers. I thought that limit was implicit in the chip itself. If anyone can do it, Dufus can though. He's shown some great prowess when it comes to this stuff.

Just share the secret sauce.

 

He could but then he'd have to eliminate you

 

He said he found a way to bypass it in with something to do with the IDA "Another Intel bug, a little like the one I found with IDA. Unfortunately due to Haswell's power draw and heat it is not that useful except perhaps for the much better built laptops which have probably got a higher clocking CPU in them anyway". He could have very well explained exactly what he did to me though and I likely would not have understood. It's worthless on my CPU too, mine shuts off under extended medium-heavy load at 3.9GHz, far less hitting over 4 and being stable T_T.

Edit: fixed with an actual quote.

 

IDA? That's what Turbo Boost on Core 2 was called.

 

My bad. I went and quoted to not be talking out of my rear. I knew it sounded odd when I was recounting what was said.

 

@O Showing off would be something like posting in "The processor can't reach it's top core speed" thread and complaining about not reaching 5GHz.

Just trying to see how much interest there is in this. Very little, kind of expected really.

@H Sauce will be out there but not delivered on a silver platter.

@D The Linpack results were just with normal limited unlocked bins and a BCLK of ~103MHz to give 34x103=3.5GHz.

FWIW here's some with unlimited bins but restricted by thermal headroom or rather lack of it.

PassMark @ ~4GHz, 10,503
http://www.passmark.com/baselines/V8/display.php?id=40069500251

GeekBench3 32-bit ~4.2GHz, 3946/15628
http://browser.primatelabs.com/geekbench3/2453229

UserBenchmark. New benchmark AFAIK ~4.2GHz, 99.8%
http://cpu.userbenchmark.com/SpeedTest/149/IntelR-CoreTM-i7-4700MQ-CPU---240GHz

 

What about a wprime 1024 bench with max clock speed Dufus ?

 

Oh you have no idea. Still in the picking jaw up off floor stage, some of us. You're such a tease!

 

So I take it +137,5 mV up to 1,2 in Premas vBIOS is ok, as long as temps are ok?

 

Okay, just give me some time to get the LN2 pot set up .

Seriously though, with a 120W brick and entry level cooling that's just not going to happen with the hardware I have. Best I can do for you is a quick 32M @4.55GHz but even then I'm hitting the 110W PL2 limit I've set and already at thermal limits.

 

This sort of thing makes me both smile and stay around this forum! Good job Dufus!!

 

A very good result... Don't think I have seen such a result before with this processor. Is this doable with a i7-4710BGA processor?
Which clock speed do you manage to implement wprime 1024 with a stable clock speed before you get thermal throttling?

 

If the 47W/57W limit isn't surpassed somehow, it'll lock at 57W. Dufus said he hit the 110W limit he set, so the HQ chips won't even halfway be able to do that. A chip like yours or mine could do it as we could adjust the power limits. The M17x R4 wouldn't without a modification to the BIOS, because that system doesn't feed more than 67W to the CPU at default.

 

I thought most about whether it was possible to improve the performance in a BGA processor, than it has today... Tested in a laptop with a modified bios(if it was possible ). Maybe not as hefty as Dufus its processor. But better than what this Garbage manages from before. Not that I want one yourself...

 

Does anyone know what laptop Dufus has?

 

MSI GE60

 

That's impressive in such a thin laptop with a 120W PSU

 

@TomJGX Sorry, I missed this. It's fine for running some quick benches by taking advantage of thermal latency of a cool system but not good for 24/7. Even a dual core pulls ~90W when running XTU bench at 4.7GHz, most of that is due to poor voltage scaling at the higher frequencies..

 

..so you can run for a little bit longer before the hardware temp limit..?