shughard

I swapped out a Q9650 ES with my E7400 on Thursday. It has been running very well. I am trying to get it all the way stable. It has run P95 small ffts for 8hrs no problems. It is having trouble running P95 with large ffts. I started another test with my current settings this morning at 7:45am. I went to work and it was running fine up until about 20 minutes ago. My wife decided to play some music...... She said it made it one song before crapping out.

I have two questions:

1) It has been crashing differently than my E7400 did. When it goes down it doesn't lock up. It just reboots. Just like someone came and hit the reset button. Before I raised my vtt and pll volts it would do this after about 2-3 minutes of large ffts. Now it has gone 6hrs before it did it again. Does this indicate a problem with my PSU ? Or do I just need to keep tweaking my settings.

2) Does the fact that it does fine with small ffts mean I can leave my vcore alone and concentrate on the vtt and pll?

Here are my BIOS settings:

CPU Ratio 9
FSB 455
PCIE 105
FSB Strap to NB auto
Dram freq 1069
Dram Timing auto
5-5-5-15-3-54-6-3
8-3-5-4-6-4-7
14-5-1-6-6
Dram static read Disabled
Dram Read training Disabled
Mem Oc Charger Auto
AI Clock Twister Auto
AI Transaction Booster Auto
CPu Voltage 1.24500
Cpu Gtl ref .63x
Cpu PLL volts 1.60
FSB term volts 1.30
dram volts 2.20
NB volts 1.26
SB volts auto
PCIE sata volts auto
Load Line Calibration enabled
cpu spread spec disabled
pcie spread spec disabled
cpu clock skew auto
nb clock skew auto
cpu margin enhance optimize

C1E support disabled
max CPUID Value disabled
CPU TM funct Disabled
Execute Disable Bit Enabled
__________________

__________________
Windows is like a case of the crabs

you really can do without it

MarcusGSWE

Sorry but dont you need way more Vcore for 4ghz?! and why is your pci frequency locked to 105 shouldnt it be 100 correct me if im wrong? also pump your nb up to 1.45-1.50

__________________

shughard

No I don't think I need more vcore. Check the q9650 owners thread there are plenty of people running 4ghz with this kind of vcore. I don't think I need that much nb either from what I have read about the P45.

This Q9650 is an ES not sure if that makes a difference.

__________________
Windows is like a case of the crabs

you really can do without it

-n7-

If it's passing small FFTS that means CPU is fine, so yes, vcore is adequate.

But obviously either RAM, NB, or FSB is not.

I'd run Memtest86+ to ensure RAM is good, & honestly, i'd leave the RAM 1:1 (DDR2-910) until you get the CPU OC stable.

Otherwise you have to worry about RAM as well as CPU.

Assuming RAM is okay, you have a NB/FSB + GTL issue.

First thing i'd say is up NB voltage a bit...1.26v is likely not quite enough; i am running that right now for my 9x445 (which is fully stable), but i need a decent bit more if i try running 450-465.

High PLL voltage isn't likely needed; i've never found any benefit for it being over 1.58 personally.

You may also need to increase/decrease VTT GTL.
This requires experimentation...it varies for everyone.

You have 1.3v + 0.63 GTL = 0.819.
You may want to try upping the GTL a value or two, or increasing VTT + dropping GTL.

As i mentioned, i suspect your current issue is NB voltage mainly though.

Another thing that can help is CPU & NB skews.

When i want to run 465 (467 is pretty much max i can get stable with my 8 GB), i usually do CPU skew -100 & NB skew -200.


Just a few suggestions...it's lots of tweaking though once you go over 450 on P5Qs.

Another tip to take CPU out of the picture is to run a lower multi.

Just run 7x with 1:1 RAM for now, that way both CPU & RAM are outta the equation.
Then you can focus on getting the board stable with the aforementioned options.

-n7-

Everyone's settings are different, & keep in mind i need a bit more voltage relating to NB due to my 8 GB, but here's what i was running for 9x467 stable in the following screenie.

CPU Ratio 9
FSB 467
PCIE 100 or 101 (don't do 105 while stability testing)
FSB Strap to NB 333
Dram freq 934
Dram all AUTO (though you should later manually set Performance Level)
CPu Voltage 1.275
Cpu Gtl ref .68x & .68x (Deluxe has two values)
Cpu PLL volts 1.58
FSB term volts 1.36
dram volts 1.96
NB volts 1.38
NB GTL 0.67 (Deluxe has this value also)
SB volts auto
PCIE sata volts auto
Load Line Calibration enabled
cpu spread spec disabled
pcie spread spec disabled
cpu clock skew -100
nb clock skew -200
cpu margin enhance optimize

C1E support disabled
max CPUID Value disabled
CPU TM funct Disabled
Execute Disable Bit Enabled





I actually run 24/7 @ 9x445 though, simply because it can do so with a LOT less voltage overall.

There are what i currently am running.

Q9650 @ 9x445 1.2375v LLC-on pll-1.54 vtt-1.26 GTLs-0.645-0.645 DRAM-1.8 vNB-1.26 NBGTL-0.64 SB-1.1 PCI-e-1.5 CPUskew-auto NBskew-auto CME-compatible DDR2-890 5-5-5-15-55 PL10 Light

It's a big difference in voltage needed once you get over 450...

shughard

Thanks for your suggestions N7. I will try them when I get home. I hope it works. I want to get 455x9 stable for 24/7. Then hopefully upgrade to h20 and go higher. This cpu rocks. Do you think it makes much difference in performance having the ram speed slower?

Have you ever tried to get a 533 fsb stable?

__________________
Windows is like a case of the crabs

you really can do without it

-n7-

RAM speed makes little difference.

That said, the reason i say to run 1:1 for now is just so you can focus on the CPU.
Then you worry about RAM clocking later.

I have not tried to get 533 FSB stable.
It's not remotely possible with a quad core on P5Qs.

You won't even get 500 stable, nevermind higher.

shughard

thanks again N7 plus rep for your help.

I tried new settings and have had success.

Here is my bios now

Here are my BIOS settings:

CPU Ratio 9
FSB 455
PCIE 100
FSB Strap to NB auto
Dram freq 910
Dram Timing auto
5-5-5-15-3-54-6-3
8-3-5-4-6-4-7
14-5-1-6-6
Dram static read Disabled
Dram Read training Disabled
Mem Oc Charger Auto
AI Clock Twister Auto
AI Transaction Booster Auto
CPu Voltage 1.25250
Cpu Gtl ref .65x
Cpu PLL volts 1.58
FSB term volts 1.28
dram volts 2.20
NB volts 1.32
SB volts auto
PCIE sata volts auto
Load Line Calibration enabled
cpu spread spec disabled
pcie spread spec disabled
cpu clock skew auto
nb clock skew auto
cpu margin enhance optimize

C1E support disabled
max CPUID Value disabled
CPU TM funct Disabled
Execute Disable Bit Enabled

It is now stable on both small and large ffts.

__________________
Windows is like a case of the crabs

you really can do without it

-n7-

Great stuff.

You aren't having to use excessive voltage for anything either, which is good.
Just your RAM vDIMM is awfully high.

The P5Qs overvolt vDIMM by about 0.08v, so your 2.20v is actually ~ 2.28v, & both of those are rather high.
I'd try lowering as much as possible.

I'd also suggest trying to get your RAM back to 5:6 (DDR2-1068) & see if it's still stable...maybe do that before trying to lower vDIMM.

This all assuming you aren't going to push for even farther :P