** OFFICIAL ** Core i5 Overclocking Results/Tips Thread

[ArCElM]

boobs

I will start the ball rolling with this VERY modest o/c, I am stuck on stock cooling atm so I am being held back my temps allot.



BIOS vcore - 1.22v
RAM voltage - 1.645
VTT - auto
QPI Ratio - 16
RAM Ratio - 5
C1E & EIST - Disabled
Spead Spectrum - Disabled
Load Line Calibration - Disabled

[Bradan]

I'm having a ton of trouble myself with my new i5 750 and 4x2gb dimms.

I can do 3.5ghz @ 1.3v core and 1.15v VTT, all else stock.

3.8ghz@ 1.3875v core and a monstrous 1.41v vtt. I'm sure the insane VTT is because of the 4 dimms being used :/

[ArCElM]

Weird, check this to see if you missed anything obvious

http://www.youtube.com/watch?v=I6zANFlYEDM

I have the GD65 so this helped me quite a bit, although I nvr touched VTT and only have 2x4GB.

Have you checked the basics like, dropping you RAM/CPU multi and seeing what base clock you can get stable?

[Bradan]

Weird, check this to see if you missed anything obvious

http://www.youtube.com/watch?v=I6zANFlYEDM

I have the GD65 so this helped me quite a bit, although I nvr touched VTT and only have 2x4GB.

Have you checked the basics like, dropping you RAM/CPU multi and seeing what base clock you can get stable?

; ]
I've overclocked once or twice in my day.

I've dropped the qpi multi to 32x, ram to 6.0x, cpu multi to 10x, and loosened ram timings a ton to narrow it down to a BCLCK soft-wall.

The only thing that has helped has been to raise the VTT (mch is on this voltage circuit) by a -ton for every little bit of BCLCK I raise.

It's kind of unfortunate, but I'll probably just run 3.5Ghz for the sake of my VTT.

[Sommer]

Need better cooling for 4GHz+.

Spec:
MSI P55-CD53 mb, has printed voltage measure points
Crucial 1333MHz 4GB KIT, CL9
Corsair 450W VX PSU
CM Hyper 212 Plus CPU Cooler

CPU batch: L924B514T

Measured voltage vcore DMM: idle>->1.438v load<->1.358v

[ovard]

I'm having a ton of trouble myself with my new i5 750 and 4x2gb dimms.

I can do 3.5ghz @ 1.3v core and 1.15v VTT, all else stock.

3.8ghz@ 1.3875v core and a monstrous 1.41v vtt. I'm sure the insane VTT is because of the 4 dimms being used :/

My Giga P55 UD5 will NOT under any circumstances allow a BCLK higher than 160 if i have more than two sticks of RAM in the computer, if I remove two of them(I also have 4x2GB) it does 210 BCLK without a hitch.

[xit]

Not having anything better than the stock cooler, and looking for the sweet-spot of o/c and temps, I have settled on the following:

19x160=3040 MHz
36x QPI
1.1750v vcore, LL off (gives 1.15 actual, 1.14 under load)
1.9v Mem using Patriot Viper @ 1600/7.7.7.23
All other voltages at AUTO

Max temp using Prime95 is around 65 celcius with ambient temp of 22 degrees.

I'm looking forward to the release of aftermarket coolers, and annoyed that the lga775 ones 'just' don't fit!

[keenan]

Using a very cheap Gigabyte P55M-UD2..

Love the underdog!!

[axffox]

NICE, stable?

[keenan]

Stable to use 24/7 but it does fail prime95 after a while...

[Venom-Crusher]

SYSTEMS
CPU Intel® Core™ i5 750 Retail Box
Motherboard GIGABYTE P55-UD6
Memory G.Skill Trident PC12800 6-7-6-18 2GB*2 Dual Channel
Graphic Card INNO3D GTX295 @ 729/1,566/1,242MHz
Harddisk Seagate Barracuda 7200.11 500GB
CPU Cooler Water Cooling (EK Supreme ,Swiftech MCP655 ,Swiftech MCR320)
Power Supply SEASONIC 850W
Operation System Windows 7 Ultimate 32-bit



http://valid.canardpc.com/show_oc.php?id=722679





























http://www.vmodtech.com/main/article...55-ud6-review/

[xdan]

Finally someone put a thread, a thread to 860/870 must be created to..
750 it's a great Cpu..from what i see 4ghz 24/7 it's sure, at leas with 4gb rams..

[GrossmeisterB]

Finally someone put a thread, a thread to 860/870 must be created to..
750 it's a great Cpu..from what i see 4ghz 24/7 it's sure, at leas with 4gb rams..

Yeah, 4GHz is quite easy, after you found out, how your motherboard behaves...

[Bradan]

My Giga P55 UD5 will NOT under any circumstances allow a BCLK higher than 160 if i have more than two sticks of RAM in the computer, if I remove two of them(I also have 4x2GB) it does 210 BCLK without a hitch.

Good to know. I have the UD2 matx board and I'm feeling lucky to get the 175 BCLK at 1.19v VTT with 4x2gb.

I'm kind of torn about this because with 8gb and pagefile disabled, my system is much smoother than any other I've used.

[Clunk]

Managed this one, my CPU isn't great but the memory controller looks to be pretty decent so far

4GHz - 200 BCLK x20 @ 1.41v Vcore 1.4v QPI/VTT 1600MHz Memory 6-7-6-24 1T

[Vinas]

Finally someone put a thread, a thread to 860/870 must be created to..
750 it's a great Cpu..from what i see 4ghz 24/7 it's sure, at leas with 4gb rams..

Repost, can a mod combine these threads please?

http://www.xtremesystems.org/forums/...d.php?t=234670

TYIA

[batmang]

My results









1.42v, 1.32v IMC, 1.15v PCH, 1.90v PLL




1.44v (bah...), 1.32v IMC, 1.15v PCH, 1.90v PLL

• ASUS P7P55D Deluxe
• Kingston HyperX (i5 specific) 1600 2x2GB Cas 8/1.65v rated
• Noctua NH-UP12 with Scythe 120x25, 120x38 PUSH/PULL 86CFM fans

[powergiga08]

Hi Guys,

I just bought i5 750 last night from Egg...I didn't get mobo and ram yet, I found this thread is really interesting me here.

@ keenan, I like your idea to buy cheaper mobo and it works like charm and no need spend expensive one.

I am drooling of your mobo, but I think I had enough with gigabyte brand and maybe this time to get different brand like Asrock P55 Pro or better.

Guys, would you please run Core Temp 0.99.5 to see what is your VID ?, also dates and batch if possible, just take screenshot to post here.

I will post it when my new shiny i5 750 arrive probably next week.

Keep up strong i5 750 !

dg

[titanium9999]

I was able to get 4 GHz

Vcore 1.3875 Bios
VTT 1.35 V
PLL Default 1.8V

[Vinas]

Just to recap, most chips seem to be doing the following:

Average Low OC: 3.6GHz @ ~1.22 to ~1.30
Average Medium OC: 4.0GHz @ ~1.35 to ~1.38 vcore
Average High: 4.3GHz @ ~1.38 to ~1.42vcore

Keep up the results people!

[ArCElM]

Repost

** OFFICIAL ** Core i5 Overclocking Results/Tips Thread

ROFL not really a REPOST is it!

"i5 batch number list"


Anyway the thread is turning out just the way I planned, somwhere were people can discuss results, and how they achieved the results.

I am still waiting on the LGA156 Bracket from Corsair before I can do anything else

[Vinas]

** OFFICIAL ** Core i5 Overclocking Results/Tips Thread

ROFL not really a REPOST is it!

"i5 batch number list"

Besides the fact the title is different, the original thread is the same as this...

Edit: No big deal but the other thread was posted several days before you created a new thread, that's all. There was another thread started by batman too! So it gets confusing.

[ArCElM]

Besides the fact the title is different, the original thread is the same as this...

Edit: No big deal but the other thread was posted several days before you created a new thread, that's all. There was another thread started by batman too! So it gets confusing.

Only thing confusing is your title, specially if your thread was meant to be about overclocking results and tips.

My thread is about, my title..

Core i5 Overclocking Results & Tips.

Hence my threads penis is 4.2" and yours is 2.1"

Now enough about you telling me how many people had already created a thread just like mine, and back to some epic i5 Results.

How about we see a screenshot with the vcore as well Vinus of your 4.3Ghz, coz thats pretty extreme

If I can hit 4Ghz when I get my Cooling I will be MORE than pleased.

[batmang]

Who cares how many threads there are, lets see results.

[Morph]

Hi
Not quite in your league but it prime95 stable 12 hours
1.316 in bios
1.3 vtt
mem 1.6
every thing else stock
under water

Batch/L924B290T