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post #3221 of 12377
Quote:
Originally Posted by vonss View Post

First off, I can run my CPU @ 1.275v at stock 3.4GHz. This silly Motherboard automatically sets the VCORE to 1.475v.
Before and after the update I ALWAYS ran a 2 hour Prime95 Blend Torture Test, if it passed that then I gamed for the rest of the day and when I go to sleep, I left it overnight running Prime95 to see if it was truly stable. It was, I used it @ 3.8GHz 1.375V for two weeks. My LLC is set to High, setting Ultra-High makes no difference in vdroop, but setting Extreme gives instead of, for example 1.375v, is1.408v.
I know is no "big-deal" but is just havin' a piss at my expense really. There is no logic in this behavior.

Just because you were able to pass prime95 for a few hours dose not mean you can call it stable. I have seen system's run prime95 for 24+ hours only to crash in BF3 due to a poor overclock. Same with Intel Burn test. Just because you run the program for X amount of time dose not mean its stable. The fact that your overclocking and under-volting should be a clue as to why you system is acting funny.

Also when you test prime95 you should run custom blend settings, making sure that you allocate maximum RAM to the blend test(take max amount of RAM and - what you need for basic IDLE OS usage). You want your overall ram usage to be between 90-95% of your max. That way if the system decided to load up a back ground program or what ever it won't crash. Leave this custom Blend running for 17 hours or more. It take's my i5 sig rig running at 4.7ghz almost 18 hours to run ALL the test's in prime. Your running a slower chip with much less OC, so it would take alot longer to run all test's in your system.
If your not using most all of your RAM during the test and your not letting it run every FFT your not fully testing stability. Even if you do run prime and ITB for endless amounts of time its no guarantee of stability. You could still crash why loading up word pad, or hang up when the PC goes to sleep.

After reading your post's I'm pretty sure your system was never stable to begin with. Did you up the CPU-NB any when doing overclocking? stock CPU-NB can cause instability in when overclocking.
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post #3222 of 12377
I appreciate your inputs, but in my book if i was doing heavy gaming for around 12-16 hours per day for two weeks or more, I dare it was "stable". I was also running a few benchmarks at that time, like PcMark07, 3DMark Vantange, 3DMark 11, Cinebench and Unigie Heaven. During that time my system never had any issues whatsoever.
I never touched any other setting but the multiplier and the vcore.

I'll try your suggesting with prime.
post #3223 of 12377
use linx. you'll see why this program is superior to prime95 if it comes to pure cpu and memory load.
only the drawback is that it's such a big load for your system, that you can't do anything else.

a one hour run with memory on all can declare your system stable. I've seen systems, which are 12 hours prime stable, crack onder the load of linx.
for ultimate stability, you just need to run it for 5 hours. a longer and more intensive load is unimaginable (unless you run it longer tongue.gif).

if you don't believe me, just try it and see how high your cpu temperature rises and how full your memory will be filled with data. not achieveable with prime.
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post #3224 of 12377
Quote:
Originally Posted by vonss View Post

I appreciate your inputs, but in my book if i was doing heavy gaming for around 12-16 hours per day for two weeks or more, I dare it was "stable". I was also running a few benchmarks at that time, like PcMark07, 3DMark Vantange, 3DMark 11, Cinebench and Unigie Heaven. During that time my system never had any issues whatsoever.
I never touched any other setting but the multiplier and the vcore.
I'll try your suggesting with prime.

There are a few things that went wrong if all you did was bump the Vcore and multi lol. how much RAM where you using? how many of the 4 DIMM's where in use? I don't doubt that it was stable to a point, but again you could pass 50+ hours of prime, and 50+ hours of IBT and linpack and still crash starting up foxfire. Gaming for a few hours is hardly a stress test. Sorry but it just sounds funny that you where stable using less than minimum voltage, then you complain about a wonky board.

My 955 BE is "unstable" at 4.3Ghz@ 1.55v, but I can play the snot out of BF3 on full ultra on it. its prone to random crash's. it will past a few hours of prime and alot of IBT but it ain't stable once or twice every 2 or 3 weeks it will stumble.

Up your voltage to somewhere in the 1.45v range for the CPU Vcore.
Up the CPU-NB voltage to somewhere in the 1.30v range
Bump the CPU-NB to 2400-2600Mhz
If using 8 gig's of RAM up the RAM voltage to 1.55v to 1.60v
If using more than two DIMM's up the RAM voltage to 1.60v

Test that for stability. If its unstable give it more Vcore (1.50v but no more than 1.55v) and up the CPU-NB to 1.35v and re test.

if it was stable, up the CPU-NB. Closer to 2600 is better, if you can get over that then your golden. You can also add more to the CPU-NB Vcore, I wouldn't go past 1.35(ish) range for 24/7 usage(some say don't go past 1.45v).

When overclocking an AMD I find its easier to start with maximum safe voltage on everything (CPU,RAM,CPU-NB) and set the clocks to a respectable number (like 3.8CPU and 2.6CPU-NB) if its stable I drop the RAM voltage down in small increments until it crash's or shows signs of instability. Once the lowest RAM voltage is found, move on to the Vcore, drop it down in small bit's until its unstable. then move to CPU-NB. Easiest way I have ever found to OC a phenom II and end up with an good overclock. Hope this helps you some.
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post #3225 of 12377
Quote:
Originally Posted by Fordox View Post

use linx. you'll see why this program is superior to prime95 if it comes to pure cpu and memory load.
only the drawback is that it's such a big load for your system, that you can't do anything else.
a one hour run with memory on all can declare your system stable. I've seen systems, which are 12 hours prime stable, crack onder the load of linx.
for ultimate stability, you just need to run it for 5 hours. a longer and more intensive load is unimaginable (unless you run it longer tongue.gif).
if you don't believe me, just try it and see how high your cpu temperature rises and how full your memory will be filled with data. not achieveable with prime.

User error. Prime has to be told how to work. if you just click "blend" and then start, its a total POS. If you actually know how to use it its a powerful tool. I see no reason to trust linx over prime.
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post #3226 of 12377
Quote:
Originally Posted by KhaoticKomputing View Post

User error. Prime has to be told how to work. if you just click "blend" and then start, its a total POS. If you actually know how to use it its a powerful tool. I see no reason to trust linx over prime.

I tried to fill up 24 gigs of memory on a pc, which was impossible with prime. and then again, linx is a other type of load which stresses the cpu a lot more to see instability a lot faster.
just try it a few times if you want to see if a system is stable. try a scenario in which you are certain that the system appears to be prime stable but isn't in real time. linx will filter those problems very fast.

i also used prime before and i was sceptical with linx, but I saw that linx was a lot faster in detecting instability.
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post #3227 of 12377
Anybody here use Touch BIOS.? when i click on overclock then Advanced Voltage settings it sometimes shows different setting to what i have set in the BIOS, eg.. i have my CPU Voltage Control set to -0.050v in the bios but it sometimes reads +0.600v in touch BIOS and my CPU NB VID Control also reads +0.600v but i have not changed it in the bios
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post #3228 of 12377
Are you using cool and quiet or any of the other features which adjust those settings on the fly? If you see the same values in cpuid or another hardware reporter then this is what is happening.

WW
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post #3229 of 12377
Would one worry about vdroop on these 1.0 rev boards without LLC when only doing light overclocking.? Planning on getting my Phenom II x4 955 BE to just 3.4 ghz So it is nothing major and i probably dont need to change the CPU VCORE or other related voltage settings
Edited by rawsteel - 6/13/12 at 12:57am
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post #3230 of 12377
Quote:
Originally Posted by rawsteel View Post

Would one worry about vdroop on these 1.0 rev boards without LLC when only doing light overclocking.? Planning on getting my Phenom II x4 955 BE to just 3.4 ghz So it is nothing major and i probably dont need to change the CPU VCORE or other related voltage settings

No, it won't matter much. you can overcome that, My board at 4.0Ghz and 1.45v Vdrops to 1.44v with no LLC
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