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Gigabyte EP45-UD3 Series Owners Guide - Page 833

post #8321 of 21186
Quote:
Originally Posted by pitashen View Post
Does anyone have any experience with Kingston's HyperX T1 series (big heat sink version) ram? I recently got 4 sticks of them for 8gig setup. Its marketed as 1066 ram but apparently its meant be OCed from its true raw spec of ddr2 800. Thats fine, since it is supposed to be able to run at 1066 5-5-5-15 2.2V. However I could not get it past 850. Tried loosen the timing, bumped MCH voltage, tried with only one stick. Nothing seemed to work. Is it just me? or this is some sort of incompatibility of the ram with the E45-UD3R board.

Any help would be appreciated. Thanks!
when you have 4 sticks the board is more stressed so it lowers the ram speed. you can overclock it.
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post #8322 of 21186
Quote:
Originally Posted by bk7794 View Post
when you have 4 sticks the board is more stressed so it lowers the ram speed. you can overclock it.
Thats where my problem is, I am not able to manually adjust the ram speed to the marketed spec. The best stable I could get is 850 4-4-4-12 instead of 1066 5-5-5-15. I have tried to increase the MCH voltage and even tried with just one stick and in pair. No luck.
post #8323 of 21186
Quote:
Originally Posted by pitashen View Post
Thats where my problem is, I am not able to manually adjust the ram speed to the marketed spec. The best stable I could get is 850 4-4-4-12 instead of 1066 5-5-5-15. I have tried to increase the MCH voltage and even tried with just one stick and in pair. No luck.
did you up the voltage to the ram when you tried upping the mch?

edit

i have found a strange bug in my bios, if i set the cpu@1.3625v and term@1.34v it dropps me to 1.26v in windows, it boots fine but its unstable. if i move vcore up or down one notch it boots with the right vcore but at those settings it loses 100mv somewhere??

dont know, just thought i would share

f11 btw
Edited by marsey99 - 12/17/09 at 4:09am
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post #8324 of 21186
Currently undergoing blend test, but for some unknown reason it keep failing randomly. I tried doing blend test for 3 times and it failed at 3 different time.

First Blend Test - Failed at 7+ hrs
Second Blend Test - Failed at 8+ hrs
Third Blend Test - Failed at 6+ hrs

I have increased MCH voltage for each time the system failed the blend test, however, it seems to get from better to worst.

Should I increase my MCH voltage further? It's going to reach 1.3V soon (next increment will be 1.3V). Or can I stop and considered the error random and not due to MCH voltage issues and call it a stable?

My aim is 12 hrs blend test without failure though for me to consider the system stable.

Note: My system passed about 8hrs of Small FFT before proceeding to blend test.
Edited by loftystew - 12/17/09 at 4:39am
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post #8325 of 21186
Congrats to ACHILEE5 for writting a sticky
Well done mate
Bradley
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post #8326 of 21186
Thread Starter 
Quote:
Originally Posted by loftystew View Post
Currently undergoing blend test, but for some unknown reason it keep failing randomly. I tried doing blend test for 3 times and it failed at 3 different time.

First Blend Test - Failed at 7+ hrs
Second Blend Test - Failed at 8+ hrs
Third Blend Test - Failed at 6+ hrs

I have increased MCH voltage for each time the system failed the blend test, however, it seems to get from better to worst.

Should I increase my MCH voltage further? It's going to reach 1.3V soon (next increment will be 1.3V). Or can I stop and considered the error random and not due to MCH voltage issues and call it a stable?

My aim is 12 hrs blend test without failure though for me to consider the system stable.

Note: My system passed about 8hrs of Small FFT before proceeding to blend test.
If I were you, I would want to figure out why it's failing. Might as well try 1.30 MCH.
There is a possibility that the board does not like your ram. Is there any way you can sell it, and pick up some G.Skills?
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The HedgeHog
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post #8327 of 21186
Quote:
Originally Posted by NoGuru View Post
If I were you, I would want to figure out why it's failing. Might as well try 1.30 MCH.
There is a possibility that the board does not like your ram. Is there any way you can sell it, and pick up some G.Skills?
Hmm... Currently undergoing blend test *again* on 1.30V for MCH.

Sigh... I'm stuck with these RAMs till my next system upgrade which is about 2 more years down the road. Why 2 years? All thanks to the mandatory full time national service in my country so my current system will have to last through that. It will be a waste if I were to change my system now since I won't get to use it much except maybe during the weekend.

Gonna pray hard 1.3V will do the trick. Just in case, I increase my DRAM voltage to 2.1V too. Manufacturer spec for my RAM is 2.2V to 2.3V.

I heard from marsey99 that I need to set my DRAM ref to half my DRAM voltage. Didn't do it though, maybe I should, might work something out.
Edited by loftystew - 12/17/09 at 7:56am
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post #8328 of 21186
Quote:
Originally Posted by BradleyW View Post
Congrats to ACHILEE5 for writting a sticky
Well done mate
Bradley
Thanks Brad, I couldn't have done it without the UD3R
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post #8329 of 21186
Thread Starter 
OMG, set your ram to manufactured specs "2.2" then after the CPU is stable you can try and drop volts. I would even set them at 2.3 for now.
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post #8330 of 21186
Quote:
Originally Posted by NoGuru View Post
OMG, set your ram to manufactured specs "2.2" then after the CPU is stable you can try and drop volts. I would even set them at 2.3 for now.
Owh... I thought 2.2V would be too high since it worked previously on 1.8V (non-overclocked).

I will go set it to 2.2V now then.
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