4.8ghz on 3770k

Not really!!!

You cant tell a system is truly stable unless you use it for what you do day to day. This is the best and only truly relevant stress test.

Try 4.7 and report back or add a touch of Vcore to 4.8!!!
 
I increased the CPU offset and changed the load line calibration to extreme so that the voltage was around 1.4v. still something isnt right. I played battlefield for around 5 minutes then it froze.
I also increased CPU PLL voltage to 1.7 and 1.8 to see if this made any difference. I must be missing some setting.
 
crazeconnolly said:
I increased the CPU offset and changed the load line calibration to extreme so that the voltage was around 1.4v. still something isnt right. I played battlefield for around 5 minutes then it froze.
I also increased CPU PLL voltage to 1.7 and 1.8 to see if this made any difference. I must be missing some setting.
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I would take out a stick of ram for a start!!!! its holding back performance and you yourself said you dont need that much!!!

Also remember now the PCI ex lanes are onboard the CPU gaming can be as tough on the CPU as stress testing with something more CPU or IMC bound and during gaming more areas of the CPU are active.

Back off the clock abit and see if this solves the problem. With that board you dont have options to adjust VCCIO and VCCSA seperately which is where I would be looking initially to solve this.

1.4 core on Ivy for 24/7 is abit high too to be honest. What are temps loaded????
 
BaDBoY_uK said:
Look forward to it. Just hit 5.1Ghz myself but timings on ram are loose to say the least lol
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Yeah that helps the IMC to remain stable under the High frequency of the CPU but with loose timings you loose performance. Often youru better tuning RAM at a lower frequency and then ploughing lets volts through your CPU but having the same and more efficient performance as the dimms are now working hard too.
 
^^^ Try tuning BLK also. I like BLK as the bus frequency goes up making your cards faster as well as memory speed.
 
Anonymous_0172 said:
How high would you consider the limit to be for 24/7 usage? I can't get 4.5GHz stable for less than 1.32v (currently on 4.3 @ 1.224)
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Most gamers etc see very little benefit above 4.4ghz with decent quad channel RAM speed thrown in the so the bandwidth is good. For you Iwould stay with 4.4 and enjoy my PC.
 
Hey 8 Pack

I have a stable 4.6 and have been using this for a while. The temps are good and everything works perfect. 4.8ghz worked under full load but not for gaming.

When you say the ram is holding me back, why is this?

All 4 slots are being used. 2x4gb 2x8gb, is that not good?

Also, Do you recommend using the BCLK for overclocking? I have been just using the multiplayer of 46.
Does the BCLK also improve as you say, the graphics and memory?


Your help appreciated.

Chris
 
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Nope its not!!!

It puts extra pressure on the IMC. Also the ideal scenario is 4 sticks at the same size and indeed type. Even better for clocking two sticks only of same size and type.
 
Hey

The 4 sticks I have are all Corsair Vengeance, 2x 8 and 2x4. I also have 2 spare 4 corsair vengeance sticks. I had 16gb at one point (4x4gbs), and i purchased the 2 8gb sticks.

Tell me more about the BCLK and overclocking, should I be using that?

Chris
 
Your best overclocks will be achieved with two matched sticks only due to pressure on the IMC. You need more RAM then add it but dont expect quite the same results unless your IMC is strong and your Board and Bios are spot on.

Blk clocking ups all the buses attached to it on the board such as Graphics cards and Memory. It allows an extra bit of play. Say your good at 4.7 but not at 4.8.Try 101 BLK x 47 for 4.75. You want abit more performance go 46 x 103.2 for your 4.7 and so on. BLK Iwould not go over about 105-106 BLK for24/7 use though as HDD's etc dont like mega high BLK. Having said this mine are all fine and I have used like 112-113.

Give it a go see where this takes you.
 
Having played around with my 3570K, I've had an amost identical result to this. Up to 4.6GHz I can run 1.27V and life is peachy, 4.8GHz needs 1.344V, and I suspect anything higher is going to require serious volts.
 
8 Pack said:
^^^^In this case the silicon is saying yeah man I like it here at 4.6ghz.
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Yep, I backed it off and have just got it sitting very happily there with nice temps and good stability. It's nice to know I could do more though. I reckon 4.9GHz would be doable under 1.4v, but I don't know about 5GHz. I suspect that would take a big push.
 
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