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post #811 of 9641
Thread Starter 
Quote:
Originally Posted by ToxicAdam View Post
Thanks man. I've seen a couple posts here where people mention 1.4v So I figured this was the norm.
I would start 1.5 and work my way down. Takes less time that way.
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post #812 of 9641
I have tried up to 1.6v vcore to get to 4.0 GHz on my 965BE. I can only get 3.8 prime 5hr stable. Just CPU multi-overclock with nothing else overclocked. Memory at 533 MHz. No luck. Temps are below 53C too. Am I doing anything wrong?

My chip's serial has 90323 at the end. That probably explains why my overclock sucks.

Ambients are at 29-30C. Northbridge temps are at about 38-40C. My southbridge temps are closer to 48-50C due to my 4870 crossfire. Reapply thermal paste on southbridge?
Edited by Riou - 9/27/09 at 8:40pm
post #813 of 9641
Thread Starter 
Lelouche: how are you trying to get to 4, HTT(FSB) or multi? My changes were 1.54 vcore and 1.3 CPU/NB for 4GHz.
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post #814 of 9641
Quote:
Originally Posted by eclipseaudio4 View Post
I would start 1.5 and work my way down. Takes less time that way.
I see.. McDown set his to 1.43v

Quote:
Originally Posted by McDown View Post
CPU 3.8ghz / 1.424V (1.43V in BIOS)
RAM 1600mhz / 1.7V
CPU-NB 1.336V (1.3V in BIOS) - motherboard overvolts CPU-NB
NB 2600mhz / 1.2V
I guess it wont go lower then this.
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post #815 of 9641
Quote:
Originally Posted by eclipseaudio4 View Post
Lelouche: how are you trying to get to 4, HTT(FSB) or multi? My changes were 1.54 vcore and 1.3 CPU/NB for 4GHz.
I only changed the multi. The "FSB" was only at 200MHz. Vcore was 1.55v and 1.3v for CPU/NB. I tried using the offsets to get the vcore to 1.6v but that did not help. I even tried raising NB voltage to 1.3. No go. NB and HT were both stock at 2000MHz. My IMC has stability problems over 2400MHz NB with SATA AHCI not detected (IDE mode works though).

I am using 1.5 official by the way. Maybe I should get some MX-3.
post #816 of 9641
Whats will the mushkin 1600 SPD at? and how can I get them to stock 1600 @9-9-9-28? My gd-70, Mushkin 1600 and 955be are on the way, Wed. to be exact, and I don't know anything about OC'ing this platform yet. I do however want my RAM to run stock speed from the get go. AND btw, if I leave the stock multi alone on the chip, what wil getting the RAM to 1600 do tot he freq. of the chip? I don't know the math yet. Thanks!
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post #817 of 9641
nevermind, i found it.
Edited by ToxicAdam - 9/28/09 at 6:44pm
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post #818 of 9641
Thread Starter 
Quote:
Originally Posted by lelouche View Post
I only changed the multi. The "FSB" was only at 200MHz. Vcore was 1.55v and 1.3v for CPU/NB. I tried using the offsets to get the vcore to 1.6v but that did not help. I even tried raising NB voltage to 1.3. No go. NB and HT were both stock at 2000MHz. My IMC has stability problems over 2400MHz NB with SATA AHCI not detected (IDE mode works though).

I am using 1.5 official by the way. Maybe I should get some MX-3.
interesting. By offsets you mean the CPU VTT?

Quote:
Originally Posted by SwishaMane View Post
Whats will the mushkin 1600 SPD at? and how can I get them to stock 1600 @9-9-9-28? My gd-70, Mushkin 1600 and 955be are on the way, Wed. to be exact, and I don't know anything about OC'ing this platform yet. I do however want my RAM to run stock speed from the get go. AND btw, if I leave the stock multi alone on the chip, what wil getting the RAM to 1600 do tot he freq. of the chip? I don't know the math yet. Thanks!
You wont have to OC the chip at all to run stock speeds. The 790FX-GD70 will run 1600 speeds @ 200 HTT(FSB) anything higher tho and you will have to OC. These AM3's are not like the old AM2's, where you had to divide the core speed by a ram divisor to get ram speed. It is more like taking the HTT(FSB) and multiplying it by the ram ratio.(at least thats how I have got it figured out)
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post #819 of 9641
Quote:
Originally Posted by eclipseaudio4 View Post
interesting. By offsets you mean the CPU VTT?
Yes the 3rd voltage option in the Bios.

Looking at my CPU, it looks very convex. It only contacts the Mega in the middle but the outsides do not make any contact. The thermal paste pattern on my CPU and heatsink is a hole in the middle and then thick ring of paste around the outside! I applied thermal paste using the pea/BB method too. I can actually rock the chip back and forth when I place it on top of the base of the heatsink.

It looks very similar to this:



Will AMD accept an RMA? Does this warrant a lap?

Did you lap your CPU/heatsink eclipse?


Edit: It appears that my Megahalems is making a "bowed" contact with my CPU. I read that bowed is a good thing? I am confused.
Edited by Riou - 9/29/09 at 5:13am
post #820 of 9641
"Please note - there should be no need to lap the heatsink base, and doing so will void warranty: "Every Prolimatech's heatsink base is designed on a pin-point scale of how the base is to be flat and/or curved where it's needed to be. We have programed our machines to machine the surface in a very calculated way. Any after-manufacture lapping or modding done to the base will alter the design, hence negating its performance factor as well as its warranty."

Source: http://www.pccasegear.com/index.php?...ducts_id=11125

was in the product description. You should be safe.
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