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Throttling issue while stress testing overclock. Help?

post #1 of 18
Thread Starter 
Okay, I'm on an FX-6300 and ASRock 970 Extreme3.

I ran a stress test with IntelBurnTest on 50 runs with Standard stress level with the voltage at 1.36 and LLC set to "Enabled." Anyways, when I clicked "Start" on IBT the voltage went from about 1.36 to 1.312-1.33 and it dropped to 1.296 at one point. Then after the 40th run it throttled to 0.864v twice but IBT still said it was stable.

I tried it with the LLC disabled and it throttled a lot, having LLC set to "Auto" throttles a lot also and my bios only has three settings for LLC, Auto, Enabled, and Disabled. Then I tried upping the voltage one notch to 1.3750v with LLC enabled and it throttled a few more times so I stopped the test and went back to my stock settings.

Anyways, even when the voltage was set to 1.36v and throttled to 0.864v twice, you guys think its ready fro a 12 hour Prime95 blend test? Because I think that's the most stableit can get because it throttled less on IBT than having it at 1.3750v. If 1.36v isn't stable, I'll try upping the CPU-NB voltage to see if I get a more stable clock.

Also, how much load does a P95 blend test put on a CPU? Is it like IBT or a P95 Small FFTS test which puts it at 100% load or does it put it at 85-90% load because its testing most of the RAM also?

Yeah, my biggest regret with this build is going with a POS 970 chipset motherboard with 4+1 phases instead of a 990FX board with 8+2 phases, biggest regret of my build for sure and if I can't get it to be stable I'm not sure if I should try and overclock with my current board, give up on overclocking and just upgrade to Steamroller when it comes out, or upgrade to a 990FX board like an Asus Sabretooth or ASRock 990FX Extreme4.

I mean I have all the power saving modes in the bios disabled, maybe its the cooling? Maybe a Cooler Master Hyper 212 EVO isn't cutting it and I should upgrade to a Corsair 100i or I should add a second fan to my Hyper 212 EVO.

Yeah if you guys need more details let me know.
Edited by CannedBullets - 5/26/13 at 10:34pm
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post #2 of 18
What setting do you have LLC set to? You usually have to set it to the 2nd highest setting for it to keep the voltage under load to where you set it in the BIOS. That's Ultra High on Asus motherboards.

The throttling could also be your motherboard just not being up to snuff to handle the overclock and the voltage. Downside of getting the cheaper motherboard.

P95 is different than IBT and is more like OCCT for stress testing. I strongly recommend running both. My 8150 will pass IBT at 4.8 all day long but will crash almost instantly under OCCT. So make sure you test with both to make sure.
post #3 of 18
Thread Starter 
Quote:
Originally Posted by MacLeod View Post

What setting do you have LLC set to? You usually have to set it to the 2nd highest setting for it to keep the voltage under load to where you set it in the BIOS. That's Ultra High on Asus motherboards.

The throttling could also be your motherboard just not being up to snuff to handle the overclock and the voltage. Downside of getting the cheaper motherboard.

P95 is different than IBT and is more like OCCT for stress testing. I strongly recommend running both. My 8150 will pass IBT at 4.8 all day long but will crash almost instantly under OCCT. So make sure you test with both to make sure.

Well, I'm on the stock CPU speed and stock motherboard settings so the LLC is set to auto. Originally the people on the ASRock Extreme series thread in the AMD mobo subforum said to disable it because my LLC didn't have an option to set it to 1/2. So I tried that and it throttled a lot so then I was told I should experiment with auto and enabled for LLC and so far LLC enabled at 1.36v seems to be the most stable because it throttles the least.

Yeah, I only have LLC settings for Auto, Enabled, and Disabled, it gives me no option to have LLC at 50% or 75%, or anything like that which you would fine is a better motherboard.
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post #4 of 18
Try putting a fan over those vrms. It needs to be cooled. Tower coolers don'l blow any air over the vrms. A new board would be good. I'm a little surprised that it's throttling on that board. I think i did come across one person who was facing this issue but it wan't the vrms that were heating up but some setting in the bios which fixed it. Can't remember exactly what though. Try flashing your bios.
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post #5 of 18
Thread Starter 
Quote:
Originally Posted by jason387 View Post

Try putting a fan over those vrms. It needs to be cooled. Tower coolers don'l blow any air over the vrms. A new board would be good. I'm a little surprised that it's throttling on that board. I think i did come across one person who was facing this issue but it wan't the vrms that were heating up but some setting in the bios which fixed it. Can't remember exactly what though. Try flashing your bios.

I don't think I'll need to flash my bios because its already at the latest version. Are there any guides on putting a fan over the VRMs?
Edited by CannedBullets - 5/27/13 at 12:10am
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post #6 of 18
Quote:
Originally Posted by CannedBullets View Post

I don't think I'll need to flash my bios because its already at the latest version. Are there any guides on putting a fan over the VRMs?

My friend used super glue to stick it to his mobo and over the vrms smile.gif
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post #7 of 18
hello,
the ibt you ran,
the clock dropped down at the end as it had finished work and was waiting ,
the voltage of 0.864v is the voltage of the cpu at 1400mhz.
do you have cool and quiet enabled please?
if yes all is fine.

as for cooling, save up for a real water cooling kit, the h100 i'm using is not much cop and ill replace it with a real kit asap, its not worth buying unless you just want a very good silent cpu cooler.
its not better than a top air cooler,watercooling kits are definitely better than an air cooler.

the vrm's do need a fan on them if you don't have a heat sink and check the air flow in to the case, you want it greater than the output or you will get dust collecting around opening like the case sides. high air flow will help your vrm cooling.
Edited by MrPerforations - 5/27/13 at 7:17am
    
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post #8 of 18
That board is a 4 + 1 Power Phase Design, I would not overclock with it. The amount of $ and time you will have to spend keeping those vrm's cool you might as well go out and buy a new mobo.

You are still going to need a new board when Steamroller arrives if you want to overclock, might as well get a new board now and upgrade to Steamroller 3 or so months into its life cycle.
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post #9 of 18
yer, with hits9nine there, if I had spoken to you before your purchase a 99x or above is what you need, the 99x is the 6+2 vrm you need, and I got it for an 8 core as I could only get advice to buy a 2500k instead of amd,, you live and learn.
    
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post #10 of 18
Thread Starter 
Quote:
Originally Posted by Hits9Nine View Post

That board is a 4 + 1 Power Phase Design, I would not overclock with it. The amount of $ and time you will have to spend keeping those vrm's cool you might as well go out and buy a new mobo.

You are still going to need a new board when Steamroller arrives if you want to overclock, might as well get a new board now and upgrade to Steamroller 3 or so months into its life cycle.

I thought Steamroller was using AM3+ like Piledriver. Didn't AMD say they were going to use AM3+ until 2015?

If Steamroller won't use AM3+, I might just buy a new motherboard and try and overclock my FX-6300.
Edited by CannedBullets - 5/27/13 at 8:57am
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