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Author Topic: bad ram/motherboard  (Read 14156 times)

Bald_Eagle1

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Re: bad ram/motherboard
« Reply #15 on: April 09, 2014, 06:21:45 PM »

Nice setup, should certainty be quick, hope you've got your ram problem sorted now.


 
It seems to be TOO quick for the HG12 modem.
It now looks like I'll have to slow down my programs just to keep Chrys's fantastic setup fed with modem stats data  :lol: :lol:


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Chrysalis

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Re: bad ram/motherboard
« Reply #16 on: April 09, 2014, 06:34:02 PM »

I been told by the overclocking community I have a wicked cpu, I have barely touched the voltage and have 4.3 clocks.  So might be even faster soon if I feel like pushing it more :)

most people are going 1.2v or higher to get 4.3-4.4 I am on 1.13v.
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Ronski

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Re: bad ram/motherboard
« Reply #17 on: April 09, 2014, 06:45:19 PM »

Go on you know  you want to  ;D

I built  a 6 core Intel system last year for a freind,  I had that running at  4.5Ghz, but the voltage was bumped up quite a bit.
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Formerly restrained by ECI and ali,  now surfing along at 390/36  ;D

NewtronStar

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Re: bad ram/motherboard
« Reply #18 on: April 09, 2014, 08:12:09 PM »

Its all overkill Chry unless your doing some 3D ray tracing for a Movie :) I get by on a Dual Core system with 4GB DDR3 dual channel  :o it's all down to my optimization.
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Chrysalis

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Re: bad ram/motherboard
« Reply #19 on: April 09, 2014, 10:12:03 PM »

You be surprised, firefox frequently saturates my cpu (it can only utilise one core).

Plus I do use various apps, heavy load etc. that I need the grunt for.
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Berrick

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Re: bad ram/motherboard
« Reply #20 on: April 10, 2014, 07:10:09 AM »

Quote
most people are going 1.2v or higher

I haven't really tried over clocking as in the past when doing so was just starting out whilst you could get the frequency to report it was higher usage never backed the figures up!

Still increasing the voltage doesn't make sense in my mind. The whole point of using lower voltage was to reduce the time it takes to go from 0 to 1?
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Chrysalis

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Re: bad ram/motherboard
« Reply #21 on: April 10, 2014, 09:52:26 AM »

I will never go to 1.2v, I am not after a extreme overclock, I want sane temperatures.  IF I only managed to get 4.0 with this overclock then its probably where I stay.  I just got lucky, I may try 4.4 (but only at the same voltage).

Also adaptive voltage keeps the same voltage when the cpu is not in turbo mode, so eg. if the pc is idle for 10 hours, then those 10 hours its the same as stock clocks/voltages, it will idle at 800mhz and use about 0.1v.  Adaptive voltage is a new thing with haswell.
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loonylion

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Re: bad ram/motherboard
« Reply #22 on: July 06, 2014, 04:46:21 PM »

Adaptive voltage is a new thing with haswell.

No it isn't, my Ivy Bridge has adaptive voltage based on core speed (actually based on multi). At 1.6ghz it runs at 0.82v, at 4.4ghz it runs at 1.25v
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Chrysalis

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Re: bad ram/motherboard
« Reply #23 on: July 07, 2014, 02:39:24 AM »

Adaptive voltage is a new thing with haswell.

No it isn't, my Ivy Bridge has adaptive voltage based on core speed (actually based on multi). At 1.6ghz it runs at 0.82v, at 4.4ghz it runs at 1.25v

adaptive voltage is not voltage been reduced at idle

its voltage been changed from full stock to overclocked speeds.

is 1.6ghz your stock or idle speed?
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loonylion

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Re: bad ram/motherboard
« Reply #24 on: July 07, 2014, 02:56:26 AM »

1.6ghz is idle, 4.4ghz is full (overclocked) speed, stock speed is 3.5ghz. I have speedstep enabled.
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Chrysalis

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Re: bad ram/motherboard
« Reply #25 on: July 07, 2014, 08:08:23 AM »

ok so compare your voltage from 3.5 to 4.4, if that changes then its adaptive.
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loonylion

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Re: bad ram/motherboard
« Reply #26 on: July 07, 2014, 11:47:55 AM »

not seen it at exactly 3.5 yet, but at 3.0 it was 1.00V
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Chrysalis

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Re: bad ram/motherboard
« Reply #27 on: July 08, 2014, 12:32:30 AM »

anything below 3.5 is fluctuations due to speedstep and c1e.
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Chrysalis

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Re: bad ram/motherboard
« Reply #28 on: November 29, 2014, 01:17:43 PM »

After refurbishing the old pc to test win10/8.1 I discovered that pc uses the ram at a lower speed.  The ram is supposed to be able to run at 1600 but it was only running at 1333 in that pc, of course it still errored out at 1333 in this pc, but I can confirm it tests ok and no instability in the other pc, so it will remain somewhat a mystery and I am putting it down to a compatibility issue for now.
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JGO

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Re: bad ram/motherboard
« Reply #29 on: November 29, 2014, 02:33:01 PM »

I had something like that when I added the nominal full amount of RAM to a motherboard .
At the frequencies concerned the clock will be an overtone crystal i.e if it is a 9th O/T 100 MHz crystal say,  it is also resonant at 7/9 of 100 MHz, 5th at  5/9, etc etc  and with insufficient load isolation can jump to a lower O/T.
It could be poor design of either motherboard or RAM.  I ended up settling for 3/4 of the maximum to get nominal speed.
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