Printable View
i finally have time to work on OCing my computer.
my cpu can do 3600MHz with a mult of 8x or 9x
now i want to make it do 7x with 500FSB -> 3500Mhz
the problem is that when i set it to this, my comp doesnt even want to POST at times. and if it does the overclock fails..
is this my cpu? i have seen other ppl getting the mobo over 500FSB so i dont see that being the problem.. is there a voltage i should increase somewhere?
I think its your memory.
also i can boot at 490FSB but it wont load windows correctly
480FSB works perfectly
ive been running my ram for months at 1000MHz at the same timings and voltage.. would FSB make and difference to the ram if the ram is still running at 1000Mhz?
Believe or not if your ram has promos chips on it then you might want to try dropping ram voltage to 2.0. I seem to get my best ocs at that voltage. Also there is BIG fsb gaps on these asus boards. Meaning it just doesnt like to be at a certain fsb. Try 495 then make adjustments from there.Quote:
Originally Posted by ripken204
500FSB with a quad is rare...Quote:
Originally Posted by ripken204
so it is my cpu then?
i know its not the ram, i put it on a divider to make it run at a lower speed.
CPU FSB wall mate, and lack of bios controls, this is where the DFI pops in , as it has numerous tweaks more to get (maybe) it going , though like mentioned before your CPU walls prolly, these are not dual cores peeps seem to forget that... and what's the advantage of running 3500 with 7 x 500 ? do you really think it's faster than 9x 400 ? sisoft sandra might give ya impressive bandwiths but in games and co it really is of almost no benefit :) and surely not for 24/7 use...
and most quads dont get 500 fsb.
My P5K Premium (rev 2.00g China) can do 500 x 7 with my L731B158 Q6600 stably, however it has had other issues, mainly with the ICH9R. see here...
My Quad... on my Blitz Formula :DQuote:
Originally Posted by Sup3rman
http://www.pcxtreme.it/forum/imageho...473d500fd9.jpg
.... liquid cooled!
Can anyone clearly indicate me why it would be better to run 7 x 500 then 9 x 400 ? I don't see the point at all
i only want to do it so that i dont have to run my memory on a divider
Show me a proc that can do 900 FSB and I will show you a thousand heavy OCers begging you to sell it to them :rofl:Quote:
Originally Posted by Leeghoofd
I got one lol typo error hehehhe ( corrected the post )
My Asus P5K Prem has done 513FSB so far with my L726A849 SLACR quad.
primestable or suicide shot ? cooling used ? mobo mods ?
I did not check for prime stability but it was not a suicide shot. I did some 3dm06 runs to compare that combination of 8x500 with 9x445 and 8x513 vs 9x556 to see if it was any better which its not and requires much more voltage to remain stable. Rev2 china Asus board with bios change to 0404 using Teamgroup ram. Quad on its own water loop using PA 120.3 rad with no other mods to board.
Quote:
Originally Posted by ripken204
How do you make memory run slower than the FSB on this board? Last I knew there were no dividers (only multipliers) on an intel board.
Many OCers prefer to run their memory at 1:1 so if you have memory capable of DDR2-1000+ you will be able to run 1:1 at 500FSB. Otherwise you need to use the dividers/multipliers to push the memory to its maximum capability which cna lead to more problematic overclocking (less stable sometimes).Quote:
Originally Posted by Leeghoofd
The benefit to running at 9x400 obviously is less stress on the board as you will need higher NB voltages to maintain 500FSB, expecially with a quad.
Yeah I got that but doesn't anybody think about how you shorten the boards, CPU's lifespan with such high clocks and voltages...and my point is what's the total benefit in day to day use ? I like to play on PC's, OC them mess about, but to me there's not much difference in my online gaming with a quad at 3.5 or one running at 3.6ghz...Quote:
Originally Posted by sofarfrome
It might be cool for benching but some really want to use these settings day in day out... and then they come back with a topic like "board A sucks ass", "RMA takes too long", "got B board","B died on me in half a year", "RMA sucks again..."
Some here are really thinking they buy high grade stuff, build it and hopla I can run 500FSB now till I get something new...
Hope you get my point...
True though I personally have not seen any great increase in bench scores running a high FSB combination other then mem bandwidth on Sandra and it requires more voltage to remain stable.Quote:
Originally Posted by sofarfrome
I am sure people think about shortening the life of the board, but this is XTREME SYSTEMS where people pump 1.9v into an $1100 CPU (QX9650) and burn it up for the sake of benching. The only people that will complan about it are people that want their cake and eat it too. 500FSB with a dual core should be a breeze (assuming the CPU is capable) and by that I mean with little vcore increase. I had a DFI-P965S and an Abit IP35Pro that would reach 500FSB with no voltage increase at all (except to the CPU of coarse, and that was 1.52vcore on an L629B E6600 running at 8x500). 500FSB with a quad will surely beat the hell out of the board. I run 464FSB x8 with a quad and I do not have to bump the NB voltage at all. If I go to 475 I need to bump it some and today I was messing around with 500FSB and fried one of my sticks of Crucial 10th Anni RAM. I am not sure what exactly caused this to happen but I believe upping voltages was somehow tied to it. Can't complain though as I intend on stressing my components because it is FUN and almost an addiction.Quote:
Originally Posted by Leeghoofd
Very true but any increase in performance is key to benching and if one needs to sacrifice the equipment to get it they certainly will. At least those of us that want to see just how far we can push our hardware.Quote:
Originally Posted by flesheatinvirus
I always push my systems beyond hell and back to test for potential issues for that particular combination of hardware but for benchin I shoot for the highest clock period and that usually means high multi with lower FSB. Here is a run of Pi 32meg at 515FSB on my Prem I just ran a few minutes ago. I used my Ballistix 6400 with 333 strap at 2.35v 1-1 FSB ;)
NICE!!!Quote:
Originally Posted by flesheatinvirus
FSB is the botlleneck of the quads, higher FSB at same speed will give you higher performance. All can be done in the limits off the quad and mobo. With proper settings, it is usually the cpu that hits a wall. Some worse cases cant go higher than 420, very good quads can go 480+
Try some testing yourself: set a low multi, relax memory timings, etc. - make sure, that nothing else will be an obstacle for high fsb freqs. Now start at 450 and go up p up .... adjust voltages, check temps .... you get the point. Mostly, for 450 and up, you may require high voltages for fsb, mch or vtt, pll, find your comfort zone for the particular cpu for 24/7
Same here mate, but Extremesystems has evolved into a more general hardwareforum , where we used to have madman like Sierra and co pushing their A8V Dlx to the max, we have all sorts of stuff and peeps now to be honest I'm getting tired of some posts as they complain ( just like on HARDOCP forum ) how crap their mobo is while mostly it's user error or just pushing it that little bit too far... I can live with the fact that I smoke a board but can they ?Quote:
Originally Posted by sofarfrome
So what is the default NB voltage?
How high would you crank it up for relatively safe 24/7 use at 8 MULTI *500 FSB with a Q6600?
For 4G with that FSB I would say 1.7-1.8v would be fine with good board cooling.
Are you in a mood to destroy ya mobo in a flash, jeez guys 1.8 volts on the NB :shakes: 24/7 bumpQuote:
Originally Posted by flesheatinvirus
500FSB is not an easy goal ... When setting a 6x MULTI, what was your max stable FSB?Quote:
Originally Posted by foodfightr
Fact is that over 1,7V Vmch is hurting the chipset and over 1,6V is not, repeat NOT good for 24/7. Certainly you wont see any defects after one month, but on the long run ... yes, your are killing the chipset
I have been running 1.7v on my NB of a DFI NF4 Ultra board with an Opty 170 at 3G now for two years with no problems.
Don't compare different technologies, chipsets,...,
I also used 3 volts for my ram in the DDR days, do it now and you get a nice show... compare apples with apples plz
I agree the Opty rig is completely different and not a fair comparison.Running 500+ FSB on this board continuous 24/7 is going to require a serious amount of NB vcore that comes with that decision. If you can do it on 1.55v all the power too you but I doubt that will happen unless you got a really good Prem, Test it and see. I run 4G at 445X9 because its less voltage all around with my NB at 1.55v and crank things up when benchin. The P5K prem was built for water and has a well designed heatpipe bridge which can handle excessive heat rather well. Is that voltage dangerous 24/7 and will it degrade the system faster yes of course it will. It can handle it. I do believe thats why we are here.