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Has anyone played with a EP45t-UD3P ?

H

hank123

Limp Gawd
Joined
May 6, 2008
Messages
148
Has anyone played with a EP45t-UD3P?


I been trying to clock my Q6600 and I have a heck of a time matching what my Abit IP35 Pro would do. It seem that I have to run my PLL voltage up high. Around 1.57V or a little more when I have the FSB up around 450. I am at 3.6 stable.

Whats a safe PLL for a q6600?

One Big issue I have is clock the ram. I am running Gskill with D9GTR's. I have a heck of a time getting them up to there rated speed of 1600Mhz.

Any ideas?
 
Well, I have a EP45-UD3P (DDR2 Only version). I'm running 3.6GHz with 450x8. BIOS voltages are Core - 1.35, PLL - 1.57, Termination 1.40, and the Chipset at 1.16V. The computer is rock stable at these settings. No idea on the DDR3 RAM though. I've found that my RAM responds really well to a slight bump in termination voltage. Currently running 2.14V and 1.070V Termination for my clocks.
 
Whoops, didn't see your post, sorry. I wasn't having issues so much as I had to pump much more voltage through it to get stability at the same settings. Using a bit more termination voltage allowed me to drastically reduce the standard vDIMM I was applying.
 
Right on whats a safe voltage to run on the termination? your talking about the CPU side not the Ram side right?

Thanks
 
hank123 said:
Right on whats a safe voltage to run on the termination? your talking about the CPU side not the Ram side right?
Thanks
Click to expand...
Both actually. CPU Termination voltage for 65nm CPUs is good up to 1.36V anyway, but I wouldn't go much higher than that. As far as my CPU goes, by turning the termination voltage up to 1.36V I was able to knock my voltage down to 1.356 from 1.375 100% stable (12 hours of Prime95 64-bit large FFT) :D
 
I was thinking I could run it up to 1.5 or a little more. from the looks of your sig u seem to be running the DDR2 ver of this mobo. Im playing with the DDR3 ver and I think it runs different.
 
CPU termination voltage is CPU termination voltage, it more so depends on the CPU used and not the motherboard. It's a different voltage spec in addition to Vcore (which is usually referred to when quoting CPU voltage). Running it over 1.4V is where you can start damaging your chip in the long run.
 
well I cant really get over 3.6-3.7 stable. I think the DDR3 Ver of this mobo is junk. I have a cherry Q6600 with a VID of 1.2250 and its on water but temps are high. I think one issue is on this mobo is that it does not like doing high speeds. I have had my FSB up to 520 or so on the Q6600. Ram on the other hand does not do well.

Any ideas would be of great help
 
voltage-2.jpg
 
Well, Q6600's run very hot once you overclock them, even the low VID ones. And I can't get my Q6600 stable over 3.6GHz without adding much more volts (like 1.45V range). Sometimes your chip just has a "sweet spot." One thing you could try is using an 8x multiplier instead of 9x, that usually helps me clock further. Other than that, set your VTT to about 1.36V, your CPU PLL voltage to 1.57V or so (do not go over 1.6V), and your Vcore to your desired voltage. Also make sure to set your RAM to its lowest multiplier to take it out of the equation for now. Also give your MCH (northbridge) voltage a boost to 1.2-1.3V.
 
the mch core (nb) is sitting at 1.4 now. Running the chip at x8 i can run my FSB up but when I try to up the ram speed it bombs out. It seems this board does not clock ram worth crap even with good ram.

this is the stuff I have

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231142

I also ran this stuff with about the same clocks as I have now

http://www.newegg.com/Product/Product.aspx?Item=N82E16820609237

Im not sure if and what timing I should go with on the clock skews and also the other timings as no matter what I do it does no good.
 
Hmmm, the only DDR3 I've tinkered with was on an i7 build, and even then it was minimal. Is there anyway to clock down the RAM so it's not even running close to its rated speed? You shouldn't need 1.4V for the MCH (and might even destabilize it), 1.3V is more than sufficient. For reference, I'm running 450FSB rock solid at 1.16V currently. Play around with settings at 8x and 9x and see what your chip can do - work on getting your CPU to the clock you want first while keeping the RAM at a really low speed. Once you have the CPU stable at a higher clock, then work on the RAM. The secret is to not introduce too many variables so that it's easier to troubleshoot and eliminate the weak points in the overclock.
 
the ram clock is what im having massive issues with. I would like to run it at its rated speed or a little more. I can get it to run at its rated speed with a little bump in voltage but not much more.
 
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