P45 mobo's will they still overclock?

[spellcaster]

I am thinking that a P45 mobo is the way to go it must also have pcie-2 but I have been reading about that they are a lot more difficult to overclock. Is this really true or should I be looking else where. If the p45 one is the way to go can some one please identify the cheapest model which will be ok for me to run an e8400

 

[geekyEd]

You seem to be highly misinformed, P45 Chipset boards are excellent overclockers. Just google some reviews for more information.

Id suggest reading this before making any purchases.

http://forums.overclockers.co.uk/showthread.php?t=17530296

 

[Cob]

I'm finding P45 to be easier to clock on than P35 was, simply because P45 will hit higher FSB's on lower chipset voltages.

ASUS P5Q or Gigabyte GA-EP45-DS3 should do the trick.

 

[Servo]

Just got the Asus P5Q Pro, and overclocking was very easy. I just upped the cpu volts, enabled Loadline, and it's 12 hours prime stable @ 3.6.

I did try the new bios, and that wouldn't overclock for me, due to a whole lot more options like "skew" what ever that is.

So, p45 board does clock the same chip (Q6600) to the same level as my gigabyte does.

 

[BUFF]

I'm finding P45 to be easier to clock on than P35 was, simply because P45 will hit higher FSB's on lower chipset voltages.

how are you finding actual performance though?
All that I've read so far says that they clock higher because the performance level etc. have been set looser so you need a higher overclock for the same performance.

 

[Cob]

Yeah PL's at 1:1 are pretty loose. I can't set it below 10 at 500mhz 1:1 (13 is default). Ratios other than 1:1 don't seem to be quite so bad.

Early tests seem to show that the P45 PL can be '1' looser than P35's and still give the same speed, tho P35's can be set a good 2-3 tighter.

It seems that Intel have sacrificed NB timings for higher FSB out of the box. Clock-for-clock, on the tightest PL, P35 is currently faster, but P35 can't keep up with P45 once you start clocking the nuts out of the CPU.

Simply put, my Q9450 is faster at its 4ghz stable limit in my P5Q Deluxe than it was at its 3.8ghz stable limit in my IP35-Pro. But not by a lot.

 

[geekyEd]

well there has to be a balance somewhere, id rather have the extra clocking ability for the whole rig (and more MHz for the proc) rather than a tighter strapped NB.

 

[OLDPHART]

I,m using a P45 DS5 all l did was set the VID voltage to 1.280v, PCI Freq to 101, memory to 5-5-5-18/2.1volts, upped the fsb, Q6600 @ 3.3GHz. the rest of the settings are on auto 12HRs prime 95 stable.

 

[BUFF]

Simply put, my Q9450 is faster at its 4ghz stable limit in my P5Q Deluxe than it was at its 3.8ghz stable limit in my IP35-Pro. But not by a lot.

just been reading on the abit forums that chuck4456 has been playing with a P5Q-E/E8400 & hasn't found it as good as his IP35 Pro & the same CPU.

 

[fornowagain]

just been reading on the abit forums that chuck4456 has been playing with a P5Q-E/E8400 & hasn't found it as good as his IP35 Pro & the same CPU.

Interesting > http://forum.abit-usa.com/showthread.php?t=140213&page=2

 

[Cob]

I'll have a look through that thread.

Now I hate using Super-Pi to show speed differences, but it's the only benchmark where I've got screenies of both my Q6600 and Q9450 in both the IP35-Pro and P5Q Deluxe.

These were taken at the fastest 1m S-Pi stable CPU speed I could attain in each combo -

Q6600 & IP35 Pro

Q6600 & P5Q Deluxe

Q9450 & IP35 Pro

Q9450 & P5Q Deluxe

 

[Cob]

OK read the thread.

So what he's basically saying is that in his experience the mature top-of-the-range P35 Abit board is 'better' than a new mid-range P45 board (there'll be atleast three DDR2 P45 ASUS boards positioned above the P5Q-E). He might be better getting his hands on a P5Q-Deluxe.

But tbh I think he needs to spend a little more time getting used to the ASUS BIOS. The GTL's (both CPU and NB) make a heck of a difference, but take a heck of a lot of tweaking to get just right. Tho I'm not sure which GTL's are available in the P5Q-E BIOS.


Now I love the IP35-Pro (I had two of them here til I got my P5Q-D, and one is still happily running my Q6600 in a 24/7 Folding rig), but it seems old-hat now that I've kinda got on top of the ASUS BIOS.

But I do agree with him that the P45 Abit should be a monster. But, just like him, I haven't had enough patience to wait for it to finally appear.