Post Your Overclock!

[smarteyeball]

I've got a used time machine I can loan you

Morlock free?

Ouch, that is scorching!

Definitely not a 24/7 setup all right :shock:


(Still good for conversion tests though - I grabbed a 'real world temp' screenie of it at 5.2ghz and a CPU-Z validation for the heck of it )

 

[essenbe]

That really was smoking. My hat's off to you. Congratulations.

 

[Britton30]

Is TjMax really 98C for that 2500K? It would help to grab some screens of the UEFI settings.

 

[smarteyeball]

That really was smoking. My hat's off to you. Congratulations.

Thank you sir

Unfortunately I hit a wall @ 5.3ghz. It lasted long enough to grab this screenie:



x124 seconds into P95

And it simply won't boot @ 5.4

(It was getting close to suicide volts)

Is TjMax really 98C for that 2500K? It would help to grab some screens of the UEFI settings.

Yep. I'd take some shots if I could find my camera


I think I'll stick for a 24/7 of 4.7ghz for now and concentrate on lowering RAM volts.

 

[Britton30]

Ahh, I assumed your UEFI had the option of taking a shot. The one on my (twice RMAed) ASRock board does but saves it to an attached USB stick.
2GHz over stock ain't bad at all.

 

[smarteyeball]

Tbh, I haven't looked that hard. I might take a closer next time.

Certainly can't complain about a 'free' extra 2ghz

 

[essenbe]

I believe yours will. I know someone with an Asus 1155 UEFI and mine does too, I put a USB in and press F12 and it will put a screenshot of the bios page I am on in the USB. It can come in handy for overclocking or sharing your bios settings with someone else.

 

[paulpicks21]

Yep, F12 on mine.

Tried it yesterday to send a couple of pics to Steve.

 

[smarteyeball]

Bugger me, so it does Thanks guys.

(Now I've just got to find one of my bloody USB drives )

 

[Britton30]

Cool Patrick. Check, it may have to be in FAT32 format, don't remember.

 

[essenbe]

All of mine are fat32, I have never tried it NTFS.

 

[A Guy]

For a small USB stick, there are no advantages formatting NTFS, and some drawbacks. Unless you need files over 4GB, there is really no reason to format NTFS. NTFS will also wear out the drive faster. A Guy

 

[profdlp]

I notice that pretty much every overclock here seems to be accomplished solely through bumping the multiplier. Why no FSB increases?

 

[GeneO]

For a small USB stick, there are no advantages formatting NTFS, and some drawbacks. Unless you need files over 4GB, there is really no reason to format NTFS. NTFS will also wear out the drive faster. A Guy

I never heard that one - that NTFS will wear a jump drive out faster than FAT.

There is also exFAT, which can have cluster sizes up to 32 MiB and file sizes greater than the 4GB limit of FAT32 and is also supported on MAC. Wonder if that will work with the UEFI, I will have to try it.

 

[essenbe]

I notice that pretty much every overclock here seems to be accomplished solely through bumping the multiplier. Why no FSB increases?

Sandy Bridge is stock at 100, the max you can go (on my board) is 110 and from everything I hear, SB does not like it when you do. But to replace it, they give you an unlocked multiplier on the K chips. But, I'm sure you already knew that. Raising the FSB by 10 really isn't going to help that much.I raised mine a little to 100.3 with no ill effects.

 

[smarteyeball]

I notice that pretty much every overclock here seems to be accomplished solely through bumping the multiplier. Why no FSB increases?

Sandy Bridge is stock at 100, the max you can go (on my board) is 110 and from everything I hear, SB does not like it when you do. Raising the FSB by 10 really isn't going to help that much.I raised mine a little to 100.3 with no ill effects.

Yep. Upping the BCLK isn't recommended for SB, the exact reason escapes me atm, but apparently there is a higher risk of damage.

The other major reason is that when you up the BCLK, it also affects the RAM speed which can potentially cause instability. But a few minute adjustments won't hurt.

 

[profdlp]

I hadn't done much overclocking for some time. Back in the day a tried-and-true technique was to first try to push your FSB to max to check the limits of the RAM and chipset, then back it off a notch and work on the multiplier. In other words, once you knew what the rest of the system could handle you went for the max overall CPU overclock. My FSB does pretty well up to 105. Anything higher than that means lowering the multiplier so much that my overclock falls off dramatically.

Once I get the assignments for the week out of the way I may have to drop it back to 100 and see if I can get the multiplier a little higher. Right now I'm at 45 X 105 for a total of 4728 MHz. I view having my 1600 MHz RAM running at 1680 (the + 5% is due to the FSB increase) as a slight bonus, but if it's costing me several hundred MHz on the overall speed of the system I'll have a decision to make.

 

[smarteyeball]

With SB, most of the old tried and true methods are turned on their head.

►Don't touch the BCLK
►Leave Speedstep/C1E enabled
►Use offset instead of fixed vcore.

I'll post a screen shot of my 24/7 4.6ghz offset stable settings (I want to test my BIOS screenie capabilities )

It might be useful for others as well to use as a guide.

 

[smarteyeball]

Smarteyeballs settings. No guarantees


These are my 4.6ghz 24/7 stable with negative offset settings. *Ignore the DRAM voltages as my kit is rated at 1.65v. However, the VCCIO can help lower vcore. The rest of the settings are applicable. Upon further reading, up to 1.2000v on air with VCCIO is safe. I've also enabled the iGPU to fiddle with. If you don't use it, disable it.






These are my work in progress 4.7ghz 24/7 settings. I'm playing with lowering the DRAM volts.





And these are my 5.2 'encoding stable' settings. Fixed vcore, extreme this, extreme that. Not recommended for 24/7 use. (however give it a go guys, you might be surprised )

 

[essenbe]

Thanks for posting. I wish more people would do the same. I think I will find them very useful.