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Thread: P95 Illegal Sumout Error please help

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    P95 Illegal Sumout Error please help



    How can I stop this from happening my CPU wont take anymore voltage its since it will hard lock within the first five minutes if I try and brute force it. My memmory is set at 1.65 and my CP/NB is at 1.30 any suggestions?

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    Xtreme Enthusiast Jethro's Avatar
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    How about a multi of 22?
    ASROCK 970 Extreme 3 // FX-4300 @ 5.0 (250x20 64bit os) 1.46v,2500 nb/HT //12GB DDR3 @833 8-8-8-24 cmd2 1.55v // HD78500// Silverstone 650w // ~24inch Samsung portal // WDgreen and blue // Kingston v300 120GB SSD // watercooled with Swiftech storm rev2, Fez 240 , 655 pump ///

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    Damn I see I was being a bone head last night trying to take CPU-Z screen shots LOL

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    Xtreme Mentor demonkevy666's Avatar
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    bad ram maybe ?
    run error checks on them.
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    I am Xtreme BeepBeep2's Avatar
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    You probably need more cooling. On FX illegal sumout seems to be the most common error, not sure what exactly it is related to (int or fp) but it can only be helped with lower temperatures and/or more voltage if temperatures are not too high.

    What are your temperatures? Either on-die sensor +15-20c, or the motherboard sensor, if ASUS, it will be close enough, if Gigabyte add 5-10c.

    Around 70-75c I think a lot of chips get squirrely, once in that range more voltage doesn't help as it just heats up more.

    CPU/NB is not nearly as important as it was on Phenom II, cores aren't starved for memory bandwidth. I'd suggest running 2.4 GHz CPU/NB if at 2.6 and lowering voltage to under 1.225v. The ASUS boards overvolt a little bit (tested M5A97 and Crosshair V) about .03v too so you might be well up near 1.35v if you are setting 1.3v.

    My current 8150 does a healthy 4.75 on water at a little over 70c, but around 4.8 I can either run about 1 hour with 1.48v or run 10 minutes with 1.5v

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    Quote Originally Posted by demonkevy666 View Post
    bad ram maybe ?
    run error checks on them.

    I ran the windows mem tester on the whole 16 gig without error when I have time I will memtest86 the memory as well. These are GSkill Ripjaw X 2133 (8GB*2) sticks 9-11-11-31


    Quote Originally Posted by BeepBeep2 View Post
    You probably need more cooling. On FX illegal sumout seems to be the most common error, not sure what exactly it is related to (int or fp) but it can only be helped with lower temperatures and/or more voltage if temperatures are not too high.


    What are your temperatures? Either on-die sensor +15-20c, or the motherboard sensor, if ASUS, it will be close enough, if Gigabyte add 5-10c.

    Around 70-75c I think a lot of chips get squirrely, once in that range more voltage doesn't help as it just heats up more.
    Temps get to about 58*C core in HWMonitor averaging around 52-54

    CPU/NB is not nearly as important as it was on Phenom II, cores aren't starved for memory bandwidth. I'd suggest running 2.4 GHz CPU/NB if at 2.6 and lowering voltage to under 1.225v. The ASUS boards overvolt a little bit (tested M5A97 and Crosshair V) about .03v too so you might be well up near 1.35v if you are setting 1.3v.
    Noted I will make the change when I get home

    My current 8150 does a healthy 4.75 on water at a little over 70c, but around 4.8 I can either run about 1 hour with 1.48v or run 10 minutes with 1.5v
    I suspect my loop just sucks.

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    I am Xtreme BeepBeep2's Avatar
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    Quote Originally Posted by Dirk Diggler View Post
    I ran the windows mem tester on the whole 16 gig without error when I have time I will memtest86 the memory as well. These are GSkill Ripjaw X 2133 (8GB*2) sticks 9-11-11-31




    Temps get to about 58*C core in HWMonitor averaging around 52-54



    Noted I will make the change when I get home



    I suspect my loop just sucks.
    Some CPUs are more finicky than others as well.

    You're around 65-70c, so it isn't completely out of question that you have an issue. Also, if you have a weak CU combined with these temps it can error out that way.

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    Name:  Capture.JPG
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    After 30 minutes at 4.5 I am backing off of the CPU/NB to find the lowest stable voltage
    Last edited by Dirk Diggler; 06-19-2012 at 04:13 PM.

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    for sake of comparison:

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