I don't know if I'm hitting FSB wall, Memory wall, Cpu Wall or some other freakin wall.

here's what I have :

Asus p5B dlx
E6300 Conroe (B2)
2x1GB Crucial 10th anniversary edition DDR2 667
Enermax 460W PSU


Current settings:

460x7
Vcore 1.325
memory voltage: 2.25V
FSB Termination: 1.45V
NB Vcore: 1.55V
SB Vcore 1.6V

Timings are 4-4-4-12

System is stable at above settings. Idle is 40C and Full load is 52C, This is after I lapped my TT BT, and remounted is securely. Is the temp ok for 1.325V? But i seem to can't squeeze anything more out of it.


I tried the following and computer didn't even post.

490x7
Vcore 1.42
memory voltage: 2.4V
FSB Termination: 1.45V
NB Vcore: 1.65V
SB Vcore 1.6V

Timings are 5-5-5-18


What could i try?

I would raise your north bridge to 1.75
The cpu and NB are doing most of the 'work' in your o/c.

your other voltages seem too high and are probably not your 'wall'
I would lower them all by at least 1 'step' in your bios.
if these changes work lower them some more

NB Vcore is at max 1.65V, can't go higher.

How in the world are people hittin 500+ with the p5b dlx

Well, to test the FSB wall issue, try lowering the multiplier on the CPU to 6 and upping the FSB some more, if you are still stuck at the 460 MHz then you are FSB bound.

Also, there is the quality of the memory which could also limit the northbridge. What memory are you running?

Jack

2x1GB Crucial 10th anniversary edition DDR2 667 D9-GMH chips.

Memory is running stock volts (2.2), 4-4-4-12 DDR2 920mhz.

SUppose to be one of the best chips (D9)

Your DDr2-667 memory is trying to run @ DDR2-980 at your 490 attempt. Ya think that could possibly be a limiting factor??? When I pushed my DDR2-800 to DDR2-900, I had to loosen the timing to 5-6-6-20. I'd check into whether or not that 460w psu is enough for your OC. I had an Emax 600W that probably was overloading one 12v rail and would reset the comp when I video stress tested @ 9x400. I put in an Antec TP3 650w psu and the prob went away.

Lowest I can go in the P5B is 1:1 ratio . I've seen people hit much higer with the ram, so I figured ram would not be an issue especially being D9-GMH chip.

It's rated STOCK at 3-3-3-12 DDR2 667.

the DDR2 800 of the D9-GMH is basically the same memory with loosened timings 4-4-4-15 and 5-5-5-15.

Take a look at
http://www.xtremesystems.org/forum [...] p?t=121680
http://www.xtremesystems.org/forum [...] nniversary

Crucial anniversary edition is pretty up there. I kinda don't believe that mine is capping out at 460

Wish someone had this ram that could chime in.

have you tried lowering your multi as jack suggested? That's generally the first step in OCing to lower the multi and see how high you can get the FSB.

Step 1 - Lower the multi, lower teh voltages, back down to 400mhz increase cooling* then start working your way back up with voltage bumps only when needed and only when they make the difference between passing and failing your stress tests. If you get a higher FSB it's an issue with voltage too high, heat, or core frequency too high. Higher voltage isn't always better for stability and it does shorten the lifespan of the components.

If you top out at 460 again:

Step 2 - Keep all the same settings but drop FSB down to 266mhz and decrease your FSB:RAM ratio (eh, 2:3? is that an option? That should give you 399mhz and you can work up from there. double check that before you actually do it though xD) and work your way back up again. If your RAM tops out at 460mhz again it's either your ram or your NB/mobo.

If your ram clocks up higher:

Step3 - Cry, you're screwed. Either mobo or chip is stuck at 460 FSB. But go do it someplace else. It's a very decen OC

*more fans, lower ambient temp, whatever you can do. An open window on a cold dry day and a box fan pointed at an open case should do it until you install a permanent solution or decide to just clock lower.

I would say those temps are too high. I've seen other disagree with me and while it they might be right about stability the chip won't last long at high temp. Keep it under 48c (I like to keep my OCs under 40c although that often proves difficult in the summer). North bridge might also be getting too hot also.

lol i run my e6300 at 385 fsb - its must be a stinky one!

you hit a wall! no, you hit the top of mount Everest

i think you full of #$#% 0 your voltage seems to low for that speed?????

I wouldn't change the multi, it will OC your NB and probably cause you to hit the FSB wall earlier than you want. The techrepository has the article.... I lost the link.

Your NB seems a little under volted, but the question is what is the temp on the NB.... they get pretty darn hot during heavy OCing. Also, do you have active cooling around the mosfets? If they heat up too much the power to the CPU gets a bit unstable and could cause some issues. Why did you just ramp the vcore like that at 490? you can't just throttle up the voltage .1v and expect it to post. Work from 460, up the FSB 5, if its not stable up the vcore by the smallest increment.

Screen shots coming your way , let me figure out my stuff first.



To those trying to help. I changed the mem divider to 2:3, totally forgot about that at first.
I got the ram up to 487Mhz (DDR2 974 with 5-5-5-18 timing).

EDIT2: Does not seem to be RAM issue. Right now im running DDR2 1000 at 5-5-5-18....



EDIT: here you dragon.

3200Mhz, 1.32 Vcore in Bios, 9 hour orthos.





Here is 3150, only 1.30V in bios

run stablity test for 24 hours

google stablity test and down load it from pcworld

i bet it locks up in less then 30 mins

i never used pb5 but i just do not believe you can run 460 fsb @ 155v

let me get this right you running ddr667 @ ddr900? too

Ya mean the one in my SIG? 8)

Ya mean the one in my SIG? 8)

Your's isn't as big of an issue if you run the numbers. It is really a concern for the 6300 and 6400.

On your's the default is 9 and the set is 8, so 9/8* 450 = 506.25MHz which isn't beyond the 965's ability.

However if you do the same thing to a 6300, that is 7/6 * 450 = 525, now you are getting up there near the FSB wall of the 965 chipset.

If he wants 485 on a 6 multi, it would be an effective 565.83 MHz on the NB.... that's probably unreasonable.

So it is a context dependent limitation.

What are you betting? Why are you having a hard time believing my results? I'm not alone, a lot of people have achieved what I have. Just because you can't doesn't mean I'm lying.

Edit: I got that test you're talking about. It's not even multi-Threaded man. I can run that thing in the back ground for DAYS. Seriously, that test is a joke.

By the way, SP2004 Orthos is one of the most intensive tests you can run for stability.

You need to start running Orthos to test your systems. The majority can't be wrong when it comes to prime.

You're judging a product you have never used? I think i'm actually running LESS than 1.55V.

[

ddr920 to be exact. You realize I said it's a D9-GMH ICs right?
are you familiar with these ICs?


Seriously man, I have no reason to lie. That's exactly why i'm here, to get more out of my system. It seems like i'm not pushing the system and it's doing very good. If it can do so well how I have it, there has to be potential, and I'm trying to reach that.

I really don't need anyone coming in and accusing me of lying.



Back on topic.

It seems I am getting close to that FSB wall .

Is it safe to push 2.4V into my D9-GMH?

Ya mean the one in my SIG? 8)

Your's isn't as big of an issue if you run the numbers. It is really a concern for the 6300 and 6400.

On your's the default is 9 and the set is 8, so 9/8* 450 = 506.25MHz which isn't beyond the 965's ability.

However if you do the same thing to a 6300, that is 7/6 * 450 = 525, now you are getting up there near the FSB wall of the 965 chipset.

If he wants 485 on a 6 multi, it would be an effective 565.83 MHz on the NB.... that's probably unreasonable.

So it is a context dependent limitation.

I think he was referring to the link in his sig. not the OC.