CPU or Mobo?

[DPOverLord]

Greetings,
I am really sure that my CPU E6600 Can O/C more than I have gotten it (3431.0mhz) I got it to 12 hrs Dual Orthos and 1 prime stable. The problem occurs when I raise my FSB passed 380 to 390 and higher. When I raise the FSB 390 the screen goes black with my HD's running and LED lights on. Occasionaly I can reboot from this into the bios but mainly I have to CMOS Clear. I doubt the CPU is causing this so what can I do to fix the Mobo? I am using the 12/16 bios. Any help is apprecaited.

Also is there a way I can test this thoery by lowering the Multiplier? I still have not found a setting in the 12/06 bios that allows me to change the multi from 9 to 8 or 7. Thank you.

Also would the 2/27/07 bios or 97TID227 BIOS make a difference? I just want to really test this CPU since I have awesome cooling and it seems the board is holding me back
I will try that when I get home. I left the machine @ 380FSB 1.31V and the settings were:

Genie BIOS

PPM Function........................ - Enabled

CPU Clock Setting................... - 380Mhz
PCIE Clock Setting.................. - 110MHz
SATA Clock Sync. With............... - Fix 100Mhz

CPU VID Offset Setting.............. - + 100.0mV
Default CPU Voltage................. - 1.3250v
CPU VTT Voltage Setting............. - 1.20v
DRAM Voltage Setting................ - 2.20v
NB Chip Voltage Setting............. - 1.65v


DRAM Timing and Config

DRAM Timing Selectable.............. - Manual
CAS Latency Time.................... - 4 
DRAM RAS# to CAS# Delay............. - 4
DRAM RAS# Precharge................. - 4
Precharge Delay (tRAS).............. - 15
System Memory Frequency............. - 533Mhz
Refresh Mode Select................. - 15.6
Write to Precharge Delay............ - Auto
Write to Read Delay (Same).......... -Auto
Write to Read Delay (Diff).......... - Auto
Read to Write Delay................. - Auto
Write Recovery...................... - Auto
Read Recovery....................... - Auto
Read Delay.......................... - Auto
Data A Drive Strength............... - 1.75
Data B Drive Strength............... - 1.75
x8 Control Drive Strength........... - 2
x16 Control Drive Strength.......... - 2
x8 Clock Drive Strength............. - 2
x16 Clock Drive Strength............ - 2
Command A Drive Strength............ - 2
Command B Drive Strength............ - 2

This is running stable so far at 8 hours when I get home it will be running round 20 hours. The computer is running 1 Orthos Stress test, 1 prime 95 and it already ran an OCCT Torture test at the same time.
The temps via Core temp are reading around 50-55C on Core 1 and Core 2 ( Smart guardian reads 65C for some reason). I also reapplied the AS5 as was suggested before via the thin line method. The only issue I may have had is that the Thermalright Ultra 120 Extreme is massive(especially with a 120mm 72cfm SIlenX fan) and while I was mounting, the heatsink still moved left and right a little as I was trying to screw it to the motherboard via the mounting plate.

I am not really sure what I could be doing wrong. I will try setting the mem to SPD? Instead of manual? Or just set everything to Auto. Maybe I should clear the CMos again and possibly flash to a bios that lets me set the Multi? What do you think?

 

[The-Noid]

Seems about right for Infinity 975x. You can try vmodded the NB to get more than 1.65v. That is what you will need to get higher.

CPU VTT also needs to be a bit higher.

 

[DPOverLord]

The thing is that the Rev 2 (B) boards were supposed to go much higher than this. I know people who can go as high as 430FSB.
The cpu is stable at 3450mhz will know more if it has reached the 20hr mark when I get home. But thats with 1.3volts which is not too shabby. I really want to stretch the envelope and see what this chip is made of. What can I do? Northbridge is still at 43C under load which is still pretty low imo. What ya think?

 

[The-Noid]

Increase CPU VTT and NB Voltage. 1.75v is max for NB in bios.

You should also try 1.45v for CPU VTT. That seems to be the sweet spot.

 

[MarcVenice]

no ****** your fsb won't go higher if you dont push the vcore a little higher ... If that doesn't do it you need to up the NB voltage, but don't go crazy, small steps do the trick, and don't let temps go higher then you feel comfortable with ... I don't know whats max for NB temp btw, but yeah your cpu has quite some headroom left ...

 

[DPOverLord]

Yeah I totally think it should hit higher 1.3v and its hitting 3.4ghz I would think another 200-300 more mhz should be good.

 

[The-Noid]

My DFI used to be around 60C when I was running it.

Not that I condone 60C temps on NB but it was stable so that is all that matters to me.

 

[soydios]

My P5W-DH and E6600 is running at 8x400 right now, with 1.375Vcore and Auto NB voltage. Try 8x400 or 8x401, and see if that helps. Some boards don't like the high 300s for FSB.

 

[DPOverLord]

http://img524.imageshack.us/img524/6593/20hour3431mhzll7.jpg

 

[DPOverLord]

I did what was suggested and went into my bios and raised the Voltages to see if it would help in getting the mobo passed 380FSB. This is what I did:

A. CPU VID Offset Setting.............. - + 200.0mV
CPU VTT Voltage Setting............. - 1.30v
DRAM Voltage Setting................ - 2.20v
NB Chip Voltage Setting............. - 1.65v
The system hung as was seen before just a black screen when I turn on with the bios not even loading.

B. CPU VID Offset Setting.............. - + 200.0mV
CPU VTT Voltage Setting............. - 1.35v
DRAM Voltage Setting................ - 2.20v
NB Chip Voltage Setting............. - 1.7v

Same issue nothing

C.CPU VID Offset Setting.............. - + 225.0mV
CPU VTT Voltage Setting............. - 1.35v
DRAM Voltage Setting................ - 2.20v
NB Chip Voltage Setting............. - 1.75v

Most disturbing to me these are very high values for Voltages. And I am still getting no response. I am going to try loading the 2/27 bios and see if this helps I am very befuddled as to what is going on.
I even made sure I turned off all CPu enhancements PPM, then in memory everything was on auto except I set it to 400mhz and 533mhz. Any ideas?

 

[lopri]

I've heard there is an OC tutorial at DFI forum. Have you checked it out?

 

[DPOverLord]

I checked out a bunch of tutorials TechnoDavans Bulnett's nothing addresses this issue

 

[DPOverLord]

I tried changing the CAS timings on the ram and nothing works. I fail to understand what could be going on with this setup that it won?t even post at 381 or 382. But at 380 it does it with no problems whats so ever even at 667mhz

 

[DPOverLord]

bump

 

[Steaksauce]

What are your memory defaults? 800 5-5-5-15?

I would lower the PCIe to 100- 102.

Try upping the cpu voltage (Max 1.5V) to see if that helps.

If you don't know how to isolate each of the components to test each of the limits, you are not a overclocker.

 

[DPOverLord]

The memory Defaults are 4-4-4-15

I appreciate your help Steaksauce I have overclocked but maybe I am not as proficient on it when I fell into the issue as I have described. I isolated almost all the pieces of hardware. I have had the MB on the wood floor and have checked 1 dimm at a time. And they all passed Memtest. I have just been befuddled as to why it fails after going over 381. @ 380 FSB the machine runs fine. My next check will be clockgen. I have not heard of the E6600 having a FSB Wall but maybe it does.

 

[Steaksauce]

Not that kind of isolation.

You drop the cpu multi and then the memory divider low so you are testing the FSB.

Once you get the FSB, up your memory divider, increase FSB to get the max RAM.

Then you can increase cpu multi to max and find the max on the cpu.