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P45 Arrived And Overclocked


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Just arrived today the Asus P5Q Pro motherboard http://www.newegg.com/Product/Product.aspx...N82E16813131299. Running it with a Q6600, 2GB of Mushkin DDR800 4-4-4-12-2t, 160GB Seagate HDD, Samsung DVD+rw, and a cheap Biostar 8500GT(waiting on the ATI 4870x2 to be released). Cooling is a Xigmatec S1283 with the bolt-down retention bracket and OCZ Freeze Extreme TIM.

 

Overclocked to 401x9 3608Mhz so far. Have a poor VID chip at 1.3125 GO stepping. It took 1.5V to the CPU to get there. There are 2 jumpers on this board to enable the BIOS settings for CPU overvolt and Northbridge overvolt. Set the FSB to 333 initially and left everything else on auto. I got a CPU overvolt warning on booting up. Pressed F1 to continue. Checked the CPU voltage after windows loaded and it read 1.775!!! Shut it down and tried 1.35,1.4, and 1.45-no joy. It took some playing around with the FSB voltage, NB voltage, and setting the CPU voltage to 1.5v to get it stable.

 

CoreTemp reads idle

core 0 33

core 1 33

core 2 30

core 3 30

 

Load reads

core 0 54

core 1 54

core 2 51

core 3 51

 

Acceptable temps so far. The NB is much like the P35 chipset in that it gets hot to the touch. I'll play around with the settings some more this weekend to try and lower voltages and retain stability.

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Hm is it true its hard to overclock quads with a P45?

So far I'd have to say that it is a bit more difficult to overclock with the P45 compared to the X38. Finding your stabilitly point is easier with the X38 with my limited experience. Currently own an Asus P5E X38 and the P5Q Pro P45, both running Q6600s. Of course I have a better Q6600 in the X38 board so that has something to do with it. X38 CPU's VID is 1.2125 while the P45 CPU's VID is 1.3125. I do have better cooling on the P45 board using a Xigmatec S1283 cooler with the bolt-down bracket where the X38 is using a Zalman 9700 cooler. Both CPUs are lapped. I've hit 4Ghz with the X38 before lapping the Q6600 for a suicide-screenshot. I can run it at 3.8Ghz 24/7 under 100% load(protein folding/docking) but am more comfortable with the voltages and temps at 3.6Ghz. On the P45 I can hit 3.6Ghz but am currently running it at 3.285Ghz(365x9) 24/7 100% load.

 

It's hard to give it an honest assesment without swapping CPUs but I don't want to do that. It's a bit like comparing apples to oranges this way. I can say that the NB on the P45 is hot to the touch and could use direct cooling. It also has no heatsink on the mosfet at the top of the board. The aftermarket Thermalright HR-09 S Mosfet Cooler (Type 1, Slanted) should fit http://www.petrastechshop.com/thhrsmocos.html I plan to add it to my board. The X38 board runs cool and nothing on it feels hot to the touch.

 

Both of these setups are outside of a case and sitting on cardboard until I put them in HSPC tech stations.

 

The X38 is running the follwing components:

 

Asus P5E X38

Q6600 VID 1.2125 temps as of this post are 51-54-50-54 100% load

Zalman 9700 cooler

Arctic Silver 5

8GB (2x2GB) Mushkin DDR2 800 5-4-4-12

Mushkin 650 watt PSU

Seagate 500GB SATAII 32mb cache HDD

20x DVD +/- RW

2 GeCube 3870s in crossfire(upgrading to 2 4870x2s when they come out)

 

The P45 is running the following:

 

Asus P5Q Pro P45

Q6600 VID 1.3125 temps as of this post are 47-47-45-45 100%load

Xigmatec S1283 with bolt-down bracket

OCZ Freeze Extreme

2GB (2x1GB) Mushkin DDR2 800 4-4-4-12(will upgrade this to 8GB soon)

Xclio 850 watt PSU

Seagate 160GB SATAII 8MB cache HDD

20x DVD +/- RW

Biostar 8500GT(this is temporary until the 4870s come out)

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I'm by no means disappointed with the P45 but if I had to build it all over again I'd go with another X38 board. If you look at the price of the P5Q Deluxe at $209.99 @ newegg and add in the Thermalright mosfet cooler $20.95 @ Petra's then it seems that it's a little more expensive than the P5E at $224.99 @ newegg. Of course you can find cheaper P45 boards like the P5Q Pro(my choice) and those from other companies.

 

My next build will be an X48 board. Asus Rampage probably.

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lol, that's why auto is bad, 1.775 is truely nuts rofl :lol:

I assumed it would leave the VCore at the default setting of 1.3125V. Appearently I assumed wrong :smack: . Scared me pretty good when I saw it set that high.

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Yah i have heard that the P45's NB can get hot, and are a little tricky to overclock. I'll probably wait for DFI to enter the race, and choose a DK series board.

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Some helpful and informative info there rourk, I was just about to buy a P45 board but may reconsider now (again)! It's the only thing I keep changing my mind on :huh: I had an X38 ordered, then I cancelled it when the Asus P5Q got reviewed by OCC........ now I'm going the other way again.... DOH!

 

Thanks for the info anyway......

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