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i7 4700k temps too high at stock speeds during IBT - about ready to give up - Page 3

post #21 of 29
Thread Starter 
Quote:
Originally Posted by MaKe OuT View Post

some folks get good results setting cache ratio to 35 (stock) and cache voltage to auto. may need higher vcore than 1.2 to get past 4.2GHz. Try bumping that up by .05 volts?

did you read any haswell specific overclocking tutorials?

I appreciate your suggestion. I have been running the Prime95 test with the below specifications for my CPU. So far I have gotten up to 85 C bu it seems to mostly hover in the mid to upper 70s so far.

Is there a temp where I should stop the test if it hits? 90-95C?

CPU All Core Ratio 42
CPU Cache Ratio 35
Vcore override voltage 1.250
Vcore voltage additional offset Auto
CPU Cache Override Voltage Auto
CPU Cache Voltage Offset Auto
System Agent Offset Auto
Fixed Voltage 1.800


UPDATE: I received the same BSOD after 15-20 mins of running Prime95 in the way GeneO instructed. Should the vcore be pushed higher than 1.250?
Edited by yensid - 3/8/14 at 5:49pm
post #22 of 29
you could bump the vcore and accordingly set the input voltage 0.55 volts higher than vcore. I mean, surely there is a voltage high enough for you to not bsod at 4.2, however, temps could go too high. keep an eye on the temps while stressing and if it gets over 90C you may want to shut her down. 100C and the chip will throttle on its own I believe. Keep in mind, Prime is more stressful than gaming and everyday computing.
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post #23 of 29
Thread Starter 
Quote:
Originally Posted by MaKe OuT View Post

you could bump the vcore and accordingly set the input voltage 0.55 volts higher than vcore. I mean, surely there is a voltage high enough for you to not bsod at 4.2, however, temps could go too high. keep an eye on the temps while stressing and if it gets over 90C you may want to shut her down. 100C and the chip will throttle on its own I believe. Keep in mind, Prime is more stressful than gaming and everyday computing.

I did as you suggested and updated my vcore and Fixed Voltage numbers (listed below). Prime95 has been running for almost two hours. The temperature momentarily hit 93C but has mostly stayed between 79 - 82C (Core #0, the other cores have mostly stayed between 69 - 75C). Are the temps and my numbers below operating with safe ranges?

UPDATE: I got a BSOD right at the 2 hour mark.

CPU All Core Ratio 42
CPU Cache Ratio 35
Vcore override voltage 1.300
Vcore voltage additional offset Auto
CPU Cache Override Voltage Auto
CPU Cache Voltage Offset Auto
System Agent Offset Auto
Fixed Voltage 1.850
Edited by yensid - 3/9/14 at 11:08am
post #24 of 29
temps seem ok for prime but I'm not an expert. maybe try another stress test that doesn't generate as high of temps. After all prime isn't the only one out there. Try checking in the motherboard owner's thread for your mobo, maybe they have some changes you can make. Or, you may have a lower performing chip, just luck ya know? without better cooling, you may not be able to go higher voltage to allow for a higher multi. I would be curious to see how long you last in prime or another stress test at 43 and 44 multi with the same voltage. Some folks use 100 mV higher than you, but their cooling may be better, and they probably use a less stressful stability test. That's about the extent of what I have learned from reading around here on Haswell. My parts are still in the box awaiting my new case. Once I get it, I will start experimenting for myself.
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post #25 of 29
Thread Starter 
I re-ran the test and it was still going after 2 hrs and 20 mins (I stopped it there b/c I didn't want to run it overnight unsupervised). I'll see if I can fine-tune it a bit more to get the temps down or maybe if I could even get it up to 4.3-4.4 GHz. In all honesty, if the temps are within a safe range I'm pretty happy at 4.2 GHz.
post #26 of 29
Quote:
Originally Posted by yensid View Post

I appreciate your suggestion. I have been running the Prime95 test with the below specifications for my CPU. So far I have gotten up to 85 C bu it seems to mostly hover in the mid to upper 70s so far.

Is there a temp where I should stop the test if it hits? 90-95C?

CPU All Core Ratio 42
CPU Cache Ratio 35
Vcore override voltage 1.250
Vcore voltage additional offset Auto
CPU Cache Override Voltage Auto
CPU Cache Voltage Offset Auto
System Agent Offset Auto
Fixed Voltage 1.800


UPDATE: I received the same BSOD after 15-20 mins of running Prime95 in the way GeneO instructed. Should the vcore be pushed higher than 1.250?
Quote:
Originally Posted by yensid View Post

I re-ran the test and it was still going after 2 hrs and 20 mins (I stopped it there b/c I didn't want to run it overnight unsupervised). I'll see if I can fine-tune it a bit more to get the temps down or maybe if I could even get it up to 4.3-4.4 GHz. In all honesty, if the temps are within a safe range I'm pretty happy at 4.2 GHz.

Hi,

Sorry, didn't follow it all. What were your final voltages under load?

Wow, weird, the data I see quoted isn;t the same as the post I replied to. Did you edit it?

1.25V is a little on the high side but it is a lottery. I get 4.2 @ about 1.216-1.232V .
Did you try system agent offset. To get that voltage stable I need an offset of .05 on the VCCSA.

Regards
Edited by GeneO - 3/10/14 at 4:44pm
post #27 of 29
Thread Starter 
Quote:
Originally Posted by GeneO View Post


Hi,

Sorry, didn't follow it all. What were your final voltages under load?

Wow, weird, the data I see quoted isn;t the same as the post I replied to. Did you edit it?

1.25V is a little on the high side but it is a lottery. I get 4.2 @ about 1.216-1.232V .
Did you try system agent offset. To get that voltage stable I need an offset of .05 on the VCCSA.

Regards

Hi GeneO sorry for the confusion - I tried a suggestion from Make Out that required me to use different values; that's why the data you saw didn't match the post you replied to.

The final voltages under load (Prime95) were:

CPU All Core Ratio 42
CPU Cache Ratio 35
Vcore override voltage 1.300
Vcore voltage additional offset Auto
CPU Cache Override Voltage Auto
CPU Cache Voltage Offset Auto
System Agent Offset Auto
Fixed Voltage 1.850

I had to up the Vcore to 1.3 because I received a BSOD when it was 1.250. As a result of upping the Vcore I also upped the fixed voltage to 1.850. From what I understand though, most people don't seem to have to run the Vcore at 1.3 just to achieve a 4.2 GHz OC. I tried the agent offset as you suggested. I tried using the values listed below, which included the agent offset, but I still got a BSOD:

CPU All Core Ratio 42
CPU Cache Ratio 39
Vcore override voltage 1.200
Vcore voltage additional offset 0.010
CPU Cache Override Voltage 1.180
CPU Cache Voltage Offset 0.010
System Agent Offset 0.080
Fixed Voltage 1.800

I'm deifnintely willing to try different values to get my Vcore (and hopefully temps down) or at least get up to 4.4 Ghz if I can. If that's not possible, I'm ok with staying at 4.2 GHz as long as I know my temps are within a safe range. I tried playing Flight Simulator X and I believe I momentarily reached up to 73C after about 20 mins, but it seemed to stay below that. I will be doing some more testing and fine-tuning tomorrow and would greatly appreciate any advice offered.
post #28 of 29
I am out of advice, I guess you will have to experiment around. Good luck!
post #29 of 29
Thread Starter 
Quote:
Originally Posted by GeneO View Post

I am out of advice, I guess you will have to experiment around. Good luck!

Thanks GeneO I appreciate your help.
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