P5B + Conroe

[OC Nooby]

The Setup:

 

Asus P5B

Conroe E6400

Patriot 6400 @ 4-4-4-12

 

Overclocked too

 

3.44ghz CPU @ 1.45volts

Patriot Ram @ 430 4-4-4-12 ( can boot and use @ 480fsb)

 

 

Now @ 3.5ghz and 3.6ghz it doesnt work good can boot but not stable

 

Its prolly my motherboard as all i have to work with is vcore, vmem and voltage termination.

 

2 questions...What are people using to acheive 3.5ghz+?

Recommend any motherboard or do you think im close to my limit?

 

Thanks

[kingcarlos]

a better mobo and maybe a better ram. btw u running on stock hsf or what? im guessing its nreaing the limit of the processor, im usin 6400 too, and is using 3.04 to run all my programmes

[red930]

The Setup:

 

Asus P5B

Conroe E6400

Patriot 6400 @ 4-4-4-12

 

Overclocked too

 

3.44ghz CPU @ 1.45volts

Patriot Ram @ 430 4-4-4-12 ( can boot and use @ 480fsb)

 

 

Now @ 3.5ghz and 3.6ghz it doesnt work good can boot but not stable

 

Its prolly my motherboard as all i have to work with is vcore, vmem and voltage termination.

 

2 questions...What are people using to acheive 3.5ghz+?

Recommend any motherboard or do you think im close to my limit?

 

Thanks

 

Should probably check out XS, pretty sure they have way more knowledge of a P5B than most of us. I used one briefly, but it was with an E6700 so I didn't need the high FSB you need.

 

At only 1.45v I'd try upping that to 1.50v and see if you can get 3.5 stable first. If not, try increasing the voltage on the chipset. Also double check your ram isn't giving you issues, look at what speed it's running at, along with the timings.

 

For future reference, any question about a board that isn't a DFI goes in the off-topic section.

 

Also Happy_Games has an OCDB entry with an E6400 on an Infinity, I believe it was at 3.4Ghz, but it may be higher, check it out.

[Thasp]

a) I noticed that my RAM runs 4-4-4-12 at DDR800, stock speeds. But, at 3.6 GHz, even with the CPU stable, the RAM fails unless I put it down to 5-5-5-15. It's already running DDR677 at 3.6 GHz, which is under the stock rated speed of 4-4-4-12 at 400 MHz.

 

This makes absolutely no sense, but it is what it is.

 

B) I hear voltage makes these CPU thingies fly, especially at higher speeds. I try 3.2 GHz at 1.5v and the CPU laughs at me. I start an encode and it turns off and sends a nice loud boom sound through my amp.

 

1.55v and it soars at 3.6 GHz for hours.

 

c) Try MCH 1.65v, FSB termination 1.4v, ICH 1.2v.

[Angry_Games]

P5B is a great board. For high clocking, most of us have to use watercooling or phase (watercooling is what majority have though), a low divider (400 for really high clocks), and some voltage. The Intel chips to me are a bit strange in they'll do crazy speeds on stock voltages (say 3.3Ghz @ stock on water)but then to get the next 100-400Mhz, you got to jump up to say 1.6v which is almost extreme on a 1.235v cpu...even for water (and temps @ 3600+ Mhz on water w/1.600v cpu vcore are beginning to show extremes here...to get that lauded 4Ghz or better, you really and truly are going to need phase cooling, or active TEC cooling, or something more extreme than water).

 

this is the part I think all of those guys who had an ES conroe before they hit the market (the hand-picked ones that the Intel marketing guys gave them for the most part) forgot to either mention or to stress when they were hitting 4Ghz or better...that they were having to use extreme cooling...cooling that is more exotic and/or more expensive than 99% of us are willing to pay for or even dare to use.

 

but it's all up to each individual how good an overclock is. Me, I can nail 3400Mhz easily on an E6400 and 3600Mhz on an original bios (I just flashed my sig-rig/everday rig to the latest bios and will probably try again to see how far I can go), but when I am all done rocking and clocking, I drop it back to stock voltage and 3Ghz flat, and leave it there.

 

This E6600 sig-rig is faster than any machine in my lab, faster than the 3120Mhz AM2 4800+ overclock I nailed and put in the OCDB (and was my first entry into the AMD GGG Club). At stock speed on my E6600, it is faster than every single machine in the lab EXCEPT that one single 3120Mhz dual-core A64 AM2 overclock. The instant I crank up to 2600 or faster on the Core2, it easily overtakes the AM2 in every cpu related task.

 

At 2.13Ghz on the E6400, it is faster than I think all but maybe 3 of my best AMD64 overclocks. But again when I easily hit 3Ghz on stock voltages, it creams everything I have except my sig-rig (and with hacked drivers giving me SLI w/7950GT's on the E6400, it's a pretty damn close race).

 

So for me, 3Ghz is a very pleasant spot. I get supa fps in every game at 1440x900 which is what my monitor gets maxed out at. I never worry that it won't boot, will lock up, will bsod, will do something odd like crash games to desktop etc. I never worry that it will overheat or die either short-term or long-term from voltage increases.

 

 

Not everyone is like me (I like to find out my max first then drop back to something more reasonable for my needs). I'm not familiar with the P5B other than what a couple guys here have posted about it in our Intel Overclocking section. I would check there and quite a bit at XS just to see what extreme guys are doing with one, then with Overclockers.com forums, Anandtech, PCPER, even Asus's own forums just to see what realistic clocking from normal people like you and me are getting.

[steelballzz]

i have a p5b "vanilla" running my conroe 6600

 

i modded the board...vdim...vdrop and vcore and now i can pass the deluxe like a bullet

 

i did 4ghz 3dmark benchable but i had to give 1,7 vcore.....measured.....to acomplish that

its something i wouldnt recomend ....i only use it for benchies:) ....

 

i use WC setup

 

if you can choose the deluxe version go for it......

the vanilla board has only 2,1 vdimm and the vcore drop is even bigger that on the deluxe version

vanilla has no raid

clockgen and other softwares dont work in the vanilla board

 

overall its a cheap board and does the job......

i use 400x9 1,5 vcore 24-7 folding and suits me fine....until the dfi lanparty comes out....

 

good luck on your choice