i7 oc unable to pass Intelburn test

[kyotousa]

I am only able to pass Intelburn in standard mode (5 trials)....when I turn it up to "very high" it's unstable @ 2nd run. (5 trials)

I tried BCLK 200, 8x memory multi, and 18x multi => 3600mhz
Dropped to

BCLK 160, 8x memory multi, and 20x & 21x turboed => 3.2ghz or 3.36ghz.
same thing happened.

temperature 45c idle & 56c with Intel burn.
core temp -> 46c idle & 70c with intel burn.

CPU 1.20v
ram 1.6v
QPI 1.95v

System:
i7 920 D0
OCZ Platinum 1800mhz CL8 @ 1.65v
gigabyte UD3R
Corsair HX620

Any suggestion?

 

[masteryoda34]

I assume you mean QPI PLL for the 1.95 voltage.

You probably need to raise your CPU voltage.

 

[kyotousa]

Originally posted by: masteryoda34
I assume you mean QPI PLL for the 1.95 voltage.

You probably need to raise your CPU voltage.

yes QPI PPL voltage.
ic....just to make sure, it's safe to run 920 @ 1.2v - 1.35v correct?

Also, is it safe to run the memory voltage for 1.6v constantly?

btw I am running 6gb triple channel....Is it necessary to pass Intelburn with 5gb memory usage? (maximum)

 

[masteryoda34]

Basically always safe (assuming adequate cooling)
CPU voltage = 1.35
Memory Voltage = 1.65

You memory kit is probably rated at 1.65 volts. Most i7 kits are.

 

[kyotousa]

Alright...I ran a few trials. I found out I wasn't able to pass the Maximum or the very high stress setting even when I am not overclocking.
So I am not even gonna bother. However, it might be caused by the gigabyte dynamic energy saving program tho.

 

[faxon]

i have never been able to get a system to pass a run of IBT other than a friends Q6600. when i run it on my Q9650 it's not just that it crashes, cause if given enough time it usually will, but it's that since im using low CFM fans in push/pull on my megahalems, i dont have enough airflow to vent the heat that IBT generates, and my system thermal cycles to prevent the CPU from overheating, once the CPU hits 85c as measured by the bios settings i set as failsafes. i set the max in OCCT when running linpack to 90c, and 90% of the time the system overheats before it can crash the system due to other instability. passes a week of OCCT small FTT np though

ed: i should mention, by never passing i mean my athlon 64 4000+, my e5200, and my Q9650, they all fail, even at stock, with adequate cooling

 

[Shmee]

With adequate cooling, i7's should be good up to 1.4 V or sometimes more. It's just that D0's dont need as much for high OC's. For a moderate OC, start with Vcore 1.275 to 1.35, somewhere in there.

Just installed my new D0 on this comp a few minutes ago, btw.

Also, I dont recomend using power saving feature if you are overclocking, it is supposed to decrease stability. Also, when OCing, make sure you have a safe uncore multi. You may have to play around with it. Usually should be 2x or > 2x the memory mulit.

 

[Pneumothorax]

Originally posted by: Shmee
.... Also, when OCing, make sure you have a safe uncore multi. You may have to play around with it. Usually should be 2x or > 2x the memory mulit.

I wish someone told me this before I spent 4 agonizing hours trying to mildly o/c my 920 to only 3.33 on my gigabyte UD5. I was just about ready to toss the mobo back on the UPS truck before I landed on this thread. Is there an "easy mode" overclock guide for i7 newbs? This chip is way harder to o/c than my E6600/E8500/Q9550 ever were. Heck changing the crystal on my 486/33 --> 486/40 was easier lol!.
Back to the OP. I just gave up trying to get the intel burn in to run on my 920 D0/Gigabyte X58-UD5 rig. Even on stock speeds I'm only getting stability on "Standard" mode. I figure 16 hours of prime95 is good enough.

 

[Shmee]

16 hours of prime should be good enough, though IBT makes more heat and stress, though you should also stress test memory related components(RAM, MCH, Uncore) which can be done with memtest, large FSTs, and linpack using most of the available ram, or some other memory intensive app.

Also, on the UD5, unfortunately you cant leave uncore on auto or normal. It really depends on what speed you are running your BCLK and memory at. Try from 13 to 17 for lower memory multis. I am not an expert, but I have played around with it, I believe I got my C0 stable at 191x19 with a 15x multi for uncore, using a 6x ram multi I believe, as my ram is rated for only 1333 MHz.

 

[kyotousa]

Originally posted by: Pneumothorax

Originally posted by: Shmee
.... Also, when OCing, make sure you have a safe uncore multi. You may have to play around with it. Usually should be 2x or > 2x the memory mulit.

I wish someone told me this before I spent 4 agonizing hours trying to mildly o/c my 920 to only 3.33 on my gigabyte UD5. I was just about ready to toss the mobo back on the UPS truck before I landed on this thread. Is there an "easy mode" overclock guide for i7 newbs? This chip is way harder to o/c than my E6600/E8500/Q9550 ever were. Heck changing the crystal on my 486/33 --> 486/40 was easier lol!.
Back to the OP. I just gave up trying to get the intel burn in to run on my 920 D0/Gigabyte X58-UD5 rig. Even on stock speeds I'm only getting stability on "Standard" mode. I figure 16 hours of prime95 is good enough.

yah here's the easy oc guide

http://vip.asus.com/forum/view...SLanguage=en-us&page=1

I read this and 30 min later....
3.6ghz @ 1.23v stable with IBT setting on high * 8 core 8 trials.

I think my memory sucks tho, I have OCZ platinum rated 1800 CL8 @ 1.65.
But I can only get to 1600mhz 8-8-8-24 1T @ 1.6v

I thought I might be able to get to 1600mhz CL 7 or CL6.

 

[geokilla]

Forget bout the Intel Burn Test. Just use OCCT or Prime. I prefer OCCT as it stresses your CPU more than Prime95.

 

[kyotousa]

IBT is alot faster tho......I like it. haha

 

[Shmee]

Originally posted by: kyotousa
IBT is alot faster tho......I like it. haha

^ Same

 

[terentenet]

I can pass hours of IBT on max stress (all 12Gb RAM used). I did 20 passes like that when I built the system. It does heat the CPU like a b**ch though, about 5 degrees higher than Prime95 Small FFTs. My CPU goes for 68-70 celsius very fast and after about 2 hours it reaches 73-75 celsius and stays there.

Forget bout the Intel Burn Test. Just use OCCT or Prime. I prefer OCCT as it stresses your CPU more than Prime95.

IBT = Linpack with GUI and you can specify the amount of RAM to test.
OCCT CPU test = Linpack, but I believe the difference is that you can't configure how much RAM to use

There's no relation between Linpack and Prime95. I've seen systems that can do 20 passes of IBT and fail Prime95 blend after some hours.
I first tuned my system to run Prime95 blend stable for 24h.
Then I went to IBT. It required a notch higher on Vcore.
Then I got back to Prime95 blend + Furmark (best CPU, GPU + PSU test IMO). I needed 3 bumps on the NB and another on the Vcore to be 24h stable (Furmark and Prime95 were stable when run alone, but not combined).
I then loaded all USBs with external HDDs (some mine, some borrowed). I started defragging them all at once. Some dropped. Upped the SB 2 notches -> none dropped.

Overclocking the i7 is more complicated, but once done correctly it makes for a very fast and stable machine.

 

[kyotousa]

The funny thing is as stated in post #5 I can't even pass IBT on Maximum setting when I am not Overclocking.
I went back to the "Load Optimum setting" in bios. First I tried max, nope didn't pass. Then I tried very high, nope didn't pass that either.
Are you using V2.3 maybe it's a software problem with the 2.3 because alot of people experience the same thing.
Anything over 4gb is pretty much impossible to pass.

 

[Shmee]

Hmm, both my OC's pass it at 90% memory used. I use the version in OCCT 3.1.

 

[terentenet]

I am using IBT v2.2; have you tested your RAM? Perhaps there's a problem with it. You should run a few loops of Memtest and see if it errors out.

 

[OILFIELDTRASH]

I have had the same issue with not passing the test at highest level. I know the systems I tested were stable. It was on 3 different systems. A Q6600 rig, a Q9400 rig, and now my i7 rig. They were all 3 completely different setups (mobo, ram, cpu, etc..). Even with no overclocking it wouldn't pass. I just used the intel burn test with half ram used and test rig 100 passes (initial test) and if it passed that then a 24hr run of prime95 blend test. If it will make it through those then your good to go. I used the Q9400 rig a year with no issues with cpu @3.75ghz till I sold it. I have had the Q6600 @3.1ghz over a year no issues and still use it today. My i7 rig in signature I've had about 3 months @3.62ghz without a hiccup.

 

[kyotousa]

Originally posted by: terentenet
I am using IBT v2.2; have you tested your RAM? Perhaps there's a problem with it. You should run a few loops of Memtest and see if it errors out.

Yah I did use the free version of memtest. it's fine. ran 3 memtest total of 5.5g for 30min.
Maybe you could try 2.3 and see if you pass.

 

[terentenet]

I will get IBT v2.3 and I will test tomorrow. Will get back here with the results.

 

[kyotousa]

oh cool......thx

 

[terentenet]

Came back to report, IBT v2.3 works fine here. Passed 20 passes with no problem. The only "issue" is that it took longer than normal, about 17 minutes for a pass that v2.2 would pass it in 10-11 minutes.
The test was run under Windows 7 Ultimate 64bit, Maximum stress @ 11Gb RAM used for testing. The system ran with only 35Mb RAM free

 

[exar333]

Your not using the stock cooler, are you?

 

[terentenet]

Me? No, I'm all watercooled. Check the pic in sig