4930K crap processor

gronbek

gronbek

gronbek

Associate
Joined
28 Mar 2007
Posts
316
Location
Sweden
Hello,

Just finished building my rig a 4930K with asus ramp. IV Formula. Corsair dom. plat. 2133.

My CPU seem to be crap since it needs 1.45V @ 4.5Ghz and still crashes in prime test. At 3.9 turbo mode it need 1.32 to run stable.

This one is for certain going back either to store or via intel tuning plan.
Tried all sorts of settings in bios and it is impossible to run at a reasonable volt at 4.5Ghz.

That is of course if I have'nt missed anything in the settings. Perhaps the experts at oc.uk have any advise.

BR AG
 
Hey, I know it is simply pot luck with the OC ability of CPUS but if you havent already read this it's one of 8Packs guides with the x79 overclocking and will provide some useful information :)
 
@Frosty do you know what max safe volts are for sa/vtt??? When testing mine at 5g they were at 1.25v but was crashing with x124 error which first points to these, don't want to push up vcore if it's mainly imc related.
 
Hello

Thanks for the input.

1.I set my ram to xmp and bios then sets the settings for the ram at the exact spec they are designed for.
Setting the ram at 1333 results in more stable prime95 but still generates errors after 30min. Also memtest gives errors.

2. Setting 45 ratio on cpu in bios gives around 1.4 in windows cpuz. I have tried increasig the volts in bios to what has been recommended by many guides in the internet but absolutely nothing helps. Today I have headache because of 4 late nights this week trying to get the cpu under reasonable volts. Without success:mad: But I am still happy :D. Volts go up when prime95 is running if i dont set LLC to 0.

So I have tried to follow many examples on both the asus rog site and other overclock guides but nothing works.

Its probably just a crappy chip. Going to try and get it back to store tommorrow but I dont think I will get a new one since it is running ok at stock.

I have bought a tuning plan from intel. So is it just to wait out the 30 days and then send the cpu to intel HQ in USA? Or can I bring it back to the store where it was bought?

BT AG
 
You really need to set voltage manually and set you're LLC up properly.

When you run prime does your Voltage readings drop? If so what too?

If it is the case, its due to you're LLC. Depends on what motherboard you're using depends on how you set you're LLC, but you really need a middle figure:

Asrock uses levels 1-5, so use 2 or 3
Gigabyte uses 1-10 levels, level 3-4 is good here
Some other boards use none, low medium, high, ultra, use medium for now.
 
Hello,

Yeah. I have set voltage manually. Need to be around 1.42 to boot windows. Then I have tried all LLC settings. And if I set it high the volts are adjusted upwards when prime runs. If I set to regular(0) then I need to add more volt because it is not selfadjusted.
 
MjFrosty said:
I'm pretty sure that 1.2v as a rule is the 24/7 max? Personally I wouldn't exceed 1.25v but I'm sure people have gone further
Click to expand...

Depends on your cooling, also depends on wether your cooling the mosfets or not as power delivery to the cpu comes from the mosfets. Most people overlook cooling them but its important when your on the maximum OC threshold, the difference between failure and success.
 
gronbek said:
Hello,

Yeah. I have set voltage manually. Need to be around 1.42 to boot windows. Then I have tried all LLC settings. And if I set it high the volts are adjusted upwards when prime runs. If I set to regular(0) then I need to add more volt because it is not selfadjusted.
Click to expand...

Thats how LLC works. :)

On the low setting the voltge will drop, this is called Vdroop.

On the highest settings itll rise, this is called plain mad! :)

Thats why mid setting it important.

What have you set you're VTT too?

Can't you boot in with your memeory above 1333?
 
gronbek said:
Hello
1.I set my ram to xmp and bios then sets the settings for the ram at the exact spec they are designed for.
Setting the ram at 1333 results in more stable prime95 but still generates errors after 30min. Also memtest gives errors.
Click to expand...

That looks like your problem right there! If you set the bios to defaults (No overclock etc) then enable xmp to set the correct timings/speed/voltage then it should run memtest forever with no problems. If it doesn't then the memory is faulty or incompatible. If you are fully populating with 64Gb then you may need a increase in the IMC voltage for stability.
 
The Guru said:
Depends on your cooling, also depends on wether your cooling the mosfets or not as power delivery to the cpu comes from the mosfets. Most people overlook cooling them but its important when your on the maximum OC threshold, the difference between failure and success.
Click to expand...

Very true this. The ASUS boards cool them pretty well, but there were a lot of issues with mofset cooling on earlier boards and high overclocks.

Worth adding them to your loop if you're looking at high volts for long term.

Fan at the back of the motherboard does wonders too.
 
Hello

VTT tried both 1.1 / 1.2 no difference.
CPU at stock = No problem booting with xmp memory 2133 CL 9 1.5V. No problem running HCI memtest. As soon as I juice up my cpu issues start.
I cant keep a reasonable volt below 1.45 at 4.5 GHZ without crashing in memtest and prime95. Even if i set high volt like 1.5+ it gives error but not immediately.

So with that i think the cpu needs to much volt and is a crappy monday build :)
 
Have just built a x79[see sig] with a 4820K rather than the 4930k as its said to be a better overclocker.

Correct me if l'm wrong did another forum member not report his 4930k as a bad OC as well.
 
You must log in or register to reply here.
Back
Top Bottom