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Centrino hardware Contorl Crashes Z71v

post #1 of 12
6/26/05 at 1:29pm
Thread Starter 
OK, I am experiencing system crashes form time to time.. I suddenly get the windows blue screen with an error, cant even read what it says it shows it only for like 2 sex and then restarts the computer.

Probalm is I do nto know if this started to appear b4 I undervolted my cpu using Centriono harware control or not.

Anyone has or had this problem of crashing for unknow reason?

hapeens both with regular pc usage, internet browsing and gaming.

Here is what I have:

6x: .748v
8x: .828v
9x: .876v
10x: .908v
11x: .956v
12x: .988v
13x: 1.036v
15x: 1.100v


Maybe it is not even because of centrino hardware control, but I think it is.

Anyhow,, pleae help.


Z71V 2.0 Ghz 1Gig Ram.
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post #2 of 12
6/26/05 at 1:40pm
Okay, I think the 2.0 Ghz Intel chip has one different multiplier than the 1.86 that I'm running (and that I told you the voltages for), so one of your multipliers should be 14x, and one of the others should be left out. I'll see if I can find which one. Also, since individual processors are different, it's possible that you need to up your voltages a tad for yours.
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post #3 of 12
6/26/05 at 1:41pm
Thread Starter 
I now set my 15x: 1.100v to 15x: 1.116v

maybe that is why it was crashing.
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post #4 of 12
6/26/05 at 1:43pm
Thread Starter 
Quote:
Originally Posted by Djembe_Rob
Okay, I think the 2.0 Ghz Intel chip has one different multiplier than the 1.86 that I'm running (and that I told you the voltages for), so one of your multipliers should be 14x, and one of the others should be left out. I'll see if I can find which one. Also, since individual processors are different, it's possible that you need to up your voltages a tad for yours.

Can you please be more specific, you are more of an expert than I am in this. Please say what should be what.

Thanx.
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post #5 of 12
6/26/05 at 1:54pm
change your 9x multiplier to 14x, and volt it accordingly, at one or two steps below your 15x voltage. Also, there are differences in procesors, so raising all your voltages one or two notches like you did for your top voltage may help. Some of this is trial and error. I adjusted the voltages on my Z71v 4-5 times before I found ones that worked the best. Just raise your voltages slowly until you don't get any crashes.
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post #6 of 12
6/26/05 at 1:57pm
Thread Starter 
ok, I raised voltage by one on each one and I changed 9x to 14x and 14x: 1.100v

ill see how it works, but what is th reason to change from 9x to 14x... right in the middle where there was 9x I now set and have 14x.. ????
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post #7 of 12
6/26/05 at 2:44pm
Quote:
Originally Posted by ivsft
ok, I raised voltage by one on each one and I changed 9x to 14x and 14x: 1.100v

ill see how it works, but what is th reason to change from 9x to 14x... right in the middle where there was 9x I now set and have 14x.. ????
what rob meant was that. for the 2.0ghz dothan.. there are diff mutipliers that are used for dynamic switching..
for example..
a 3ghz uses 6x and 30x
a 10ghz uses 6x 8x 30x

the 2.0ghz dothan does not use the 9x mutiplier.. soo theres no point setting that. and it uses the 14x mutipler.. soo therefore you should change the voltage of that.. it doesnt' really fix your crashes

you are undervolting too much..
when i underclock i run prime95 and an mp3 together .. to test if the voltage is stable.. i ran at 1.100v at 1.8ghz.. soo you migh want it to be a few steps higher at 2.0ghz
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post #8 of 12
6/26/05 at 3:26pm
One of your voltages isn't correct. Try setting a voltage/multiplier to the top position in CHC and selecting "Only use Multiplier and Voltage #1." Use the computer as you normally would for a bit. If there's a problem, then up the voltage by one stepping and keep trying. If there's no problem, then move on to the next multiplier.
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post #9 of 12
6/26/05 at 3:36pm
Thread Starter 
So how is this:

6x: 0.764v
8x: 0.844v
10x: 0.924v
11x: 0.972v
12x: 1.004v
13x: 1.052v
14x: 1.100v
15x: 1.116v

?

Note there is no 9 now.. 14 instead. All of these are one bit higher then the ones Djembe_Rob suggested.

So far no crashes. I need to play a game to see if it wil lbe ok.

Deus Ex 2 Invisible War is my game.. BTW great game screw Half Life 2 and all other. This is one is fianlly a game with some mind put to it.
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post #10 of 12
6/26/05 at 5:02pm
Voltages vary from processor to processor (and I don't just mean 2.0 VS 1.86.)
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post #11 of 12
6/26/05 at 6:24pm
exactly. just because my processor runs at certain voltages doesn't mean that yours will necessarily run at exactly the same ones. for instance, my processor, which is exactly the same type as smilepak's (Pentium M 750 running at 1.86 Ghz), would crash if I used his voltages. That's why I said there's a bit of trial and error in finding the best voltages for your particular processor.
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post #12 of 12
6/27/05 at 12:09am
Thread Starter 
ok, thank you for the info !
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