EP43-DS3L Overclocking Help w/ E8400

[bob78h]

Uhh hi guys I'm having some trouble OC'ing my E8400... No matter what settings I change the computer won't POST the first time then it'll reboot and the settings will be normal not OC'd ones. I wanted to hit 3.6 but I only went to 3.16 at first and it still didn't work. Are there settings I'm missing or something (I'm sure there are =P). This is on an EP43-DS3L btw with 2x2GB OCZ Reaper HPC DDR2800 in dual channel (if that matters).
Here are my current M.I.T. settings:

Robust Graphics Booster->Auto
CPU Clock Ratio->9X

*****Clock Chip Control*****

>>>Standard Clock Control
CPU Host Clock Control->Enabled
CPU Host Frequency (Mhz)->333
[COLOR=blue ! important][COLOR=blue ! important][COLOR=blue ! important][/COLOR][/COLOR][/COLOR] PCI Express Frequency (Mhz)->100
C.I.A.2->Disabled

>>>Advanced Clock Control
CPU Clock Drive->800mV
PCI Express Clock Drive->800mV
CPU Clock Skew->0ps
MCH Clock Skew->0ps

*****DRAM Performance Control*****
Performance Enhance->Standard
Extreme Memory Profile (X.M.P.)->Auto
(G)MCH Frequency Latch->333 Mhz
System Memory Multiplier (SPD)->2.40B

DRAM Timing Selectable (SPD)->Manual

>>>Standard Timing Control
CAS Latency Time->5
tRCD->5
tRP->5
tRAS->15

>>>Advanced Timing Control
tRRD->3 (Auto)
tWTR->3 (Auto)
tWR->6 (Auto)
tRFC->54 (Auto)
tRTP->3 (Auto)
Command Rate (CMD)->0 (Auto)

*****Mother Board Voltage Control*****
>>>CPU
CPU Vcore->1.22500V
CPU Termination->Auto
CPU PLL->Auto
CPU Reference->Auto

>>>MCH/ICH
MCH Core->Auto
ICH I/O->Auto

>>>DRAM
DRAM Voltage->1.800V

Thanks!

[Nickel020]

Re: EP43-DS3L Overclocking Help w/ E8400

The most basic thing that you need to know is that you increase the FSB to increase the CPU speed. RAM speed is linked to the FSB though by a factor that is adjustable so you will need adjust that factor as well. Additionally, you will need to increase voltages.

Copied form the guide I'm working on ;)

You probably overclocked your RAM which it may not be able to handle.

So basically put system memory multiplier to 2.0D, increase the VCore by 0.05V over stock and try increasing the FSB

[bob78h]

Re: EP43-DS3L Overclocking Help w/ E8400

So how much should I increase the FSB by? And I kinda regret getting a P43 now as there aren't that many overclocking options. I'm pretty sure I didn't OC the RAM, what I had above is 333x2.4=800 but when I set the FSB to 350 (350x9=3.15) the RAM was at 700mhz or so the BIOS said...

[Nickel020]

Re: EP43-DS3L Overclocking Help w/ E8400

Try setting FSB to 400 bur reduce CPU clock ratio to 8 though to get to 3.2GHz for starters. Also set the CPU Vcore to 1.275V diable loadline calibration and set CPU PLL and CPU termination to the stock value. Make sure the syytemmemory multiplier is at 2.0D.

Then run Prime 95 and monitor the temperature with Core Temp or Real temp.

Also, could you make some photogrpahs of the M.I.T. menu in your BIOS? I would like to check whether the P43 actually does have less OC options than the P45 models, because I think they should be the same.

[bob78h]

Re: EP43-DS3L Overclocking Help w/ E8400

Ok if I set the memory multiplier to 2.0D what should the (G)MCH Frequency Latch be? Should it match the CPU at 400mhz?

As for the pics I'll try later but I don't have a camera I can use so it might just be webcam quality...

[Nickel020]

Re: EP43-DS3L Overclocking Help w/ E8400

You can leave it at auto. As far as I can tell the only thing this does is only make the system memory multipliers for A(266), B(333), C(200) and D(400) available ins said option.

Pics would be great, and quality doesn't matter as long the settings are identifiable.

[bob78h]

Re: EP43-DS3L Overclocking Help w/ E8400

Ok well I'm having problems. Set the clock ratio to 8x, vcore to 1.275, memory multiplier to 2.0D, FSB to 400. Exit BIOS, get the double boot thing other people have where it won't POST the first time then reboots and restores some settings. Go in the BIOS, get the error
"The system has experienced boot failures because of overclocking or changes of voltages. Last settings in this page may not coincide with current H/W states."

Now in windows CPU-Z shows the 8x clock ratio stuck but not the FSB so now I'm at 2.66 (333x8).

Also had a question about RAM timings, CPU-Z gives me a table under SPD:


What timings should I run at? I'm a bit confused about JEDEC and EPP...

[Nickel020]

Re: EP43-DS3L Overclocking Help w/ E8400

The BIOS reverts the FSB to the stock value if it fails to boot with the OC setting, but it leaves the multiplicator user defined, so that's perfectly normal behaviour.

JEDEC are the standardized timings for crappy budget modules. EPP means Enhanced Performance Profile (intel calls it Xtreme Memory Profile) and includes the timings that the RAM is specified for by the manufaturer, so those are the timings you want to run it at.

Fill out this template with your settings including my recommendation please:

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto or Fast
CPU Clock Ratio ..........................: x
Fine CPU Clock Ratio.....................:.0
CPU Frequency ...........................: x.xx


Clock Chip Control 
Standard Clock Control
CPU Host Clock Control..................: [Enabled] 
CPU Host Frequency (Mhz) ............: 500Mhz or 417Mhz *See Ram Multi Note*
PCI Express Frequency (Mhz) .........:Set to 100

C.I.A.2 .................................:[Disabled]


Advanced Clock Control [Press Enter]
CPU Clock Drive...........................: <<< 800
PCI Express Clock Drive.................: <<< 900
CPU Clock Skew (ps)....................: <<< 
MCH Clock Skew (ps)...................: <<< 


DRAM Performance Control
Performance Enhance...................: [STANDARD]
Extreme Memory Profile (X.M.P.).....: Disabled
(G)MCH Frequency Latch...............: [Auto]
System Memory Multiplier ..............: 2.00B/2.00D or 2.40 (*2.00 for 500 FSB - 2.40 for 417 FSB)

Memory Frequency (Mhz) ..............: 1000Mhz
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time........................ 5
tRCD ......................................... 5
tRP'........................................... 5
tRAS.......................................... 15


Advanced Timing Control
tRRD........................................... 3
tWTR.......................................... 3-4
tWR............................................ 5-6
tRFC........................................... 50-54
tRTP........................................... 3
Command Rate (CMD) ....................:2

Driving Strength Profiles
Driving Strength ............................ 1066

Channel A
Static tRead Value.........................:7/8-9 (Depending on other voltages and strap being used)

 tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
 tRD Phase2 Adjustment .................:Auto
 tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto 
Twr2wr(Different Rank)...................:Auto 
Twr2rd(Different Rank)...................:Auto 
Trd2wr(Same/Diff Rank)..................:Auto 
Dimm1 Clock Skew Control...............:Auto  ps
Dimm2 Clock Skew Control...............:Auto  ps

Channel B
Static tRead Value.........................:7/8-9 (Depending on other voltages and strap being used)

 tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
 tRD Phase2 Adjustment .................:Auto
 tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto 
Twr2wr(Different Rank)...................:Auto 
Twr2rd(Different Rank)...................:Auto 
Trd2wr(Same/Diff Rank)..................:Auto 
Dimm1 Clock Skew Control...............:Auto  ps
Dimm2 Clock Skew Control...............:Auto  ps

Motherboard Voltage Control
Voltage Type.���... Manual
CPU
CPU Vcore�.���.........................: x.xx
CPU Termination�..... 1.200V*.......: << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.2-1.5 depending on Vcore, try to keep at least .1 under vcore.  Auto is fine if not overclocking

CPU PLL�������....1.500V*.......: << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.5-1.65.  Auto is fine if not overclocking

CPU Referen.����....0.755V*.......: <<< .64% Of Vtt (Termination above) Auto Will set this correctly 

CPU Reference2���,,0.800V*.......:<<< .67% Of Vtt (Termination above) Auto Will set this correctly 

MCH/ICH
MCH Core�����.....1.100V...........: << 1.2-1.26 (amount needed will depend on Strap used and tRD used)

MCH Reference�.��.0.800V...........; <<< May need adjusted, depends on your board and CPU being used, and all other voltages.  See my signature for how to adjust.

MCH/DRAM Ref.�......0.900V...........: <<< Leave
ICH I/O������.....1.550V............: <<< 1.5-1.55
ICH Core����...��1.100V............: <<< 1.14-1.2

DRAM
DRAM Voltage ��....1.800V............: 2.0V (2.05V May be needed)
DRAM Termination .�0.900V............: <<< Leave
Channel A Reference 0.900V............: <<< Leave
Channel B Reference 0.900V............: <<< Leave

Advanced Settings
Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC

Integrated Peripherals
Legacy USB Storage Detect ..............[Disabled] *Note* Must be enabled to flash from USB

[bob78h]

Re: EP43-DS3L Overclocking Help w/ E8400











Error Message:

[bob78h]

Re: EP43-DS3L Overclocking Help w/ E8400

Also about RAM voltage, in the BIOS 2.1 flashes pink and 2.2 upwards is just red (I'm assuming this is warning against setting voltage that high). What should I do then? According to the EPP column of CPU-Z, I should set timings to 4-4-4-15 at 2.2V and put the command thingy to 2?

[bob78h]

Re: EP43-DS3L Overclocking Help w/ E8400

Ok heres the template

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto
CPU Clock Ratio ..........................: 8x
Fine CPU Clock Ratio.....................: +0.0
CPU Frequency ...........................: 3.20GHz (400x8)


Clock Chip Control 
Standard Clock Control
CPU Host Clock Control..................: [Enabled] 
CPU Host Frequency (Mhz) ............: 400
PCI Express Frequency (Mhz) .........:100

C.I.A.2 .................................:[Disabled]


Advanced Clock Control [Press Enter]
CPU Clock Drive...........................: <<< 800
PCI Express Clock Drive.................: <<< 800
CPU Clock Skew (ps)....................: <<< 0ps
MCH Clock Skew (ps)...................: <<< 0ps


DRAM Performance Control
Performance Enhance...................: [STANDARD]
Extreme Memory Profile (X.M.P.).....: Auto
(G)MCH Frequency Latch...............: [Auto]
System Memory Multiplier ..............: 2.00D

Memory Frequency (Mhz) ..............: 800
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time........................ 4
tRCD ......................................... 4
tRP'........................................... 4
tRAS.......................................... 15


Advanced Timing Control
tRRD........................................... 3 (Auto)
tWTR.......................................... 3 (Auto)
tWR............................................ 6 (Auto)
tRFC........................................... 54 (Auto)
tRTP........................................... 3 (Auto)
Command Rate (CMD) ....................:0 (Auto)

Driving Strength Profiles
Driving Strength ............................ (didn't get this option)

Channel A
Static tRead Value.........................:7

 tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
 tRD Phase2 Adjustment .................:Auto
 tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto 
Twr2wr(Different Rank)...................:Auto 
Twr2rd(Different Rank)...................:Auto 
Trd2wr(Same/Diff Rank)..................:Auto 
Dimm1 Clock Skew Control...............:Auto  ps
Dimm2 Clock Skew Control...............:Auto  ps

Channel B
Static tRead Value.........................:7

 tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
 tRD Phase2 Adjustment .................:Auto
 tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto 
Twr2wr(Different Rank)...................:Auto 
Twr2rd(Different Rank)...................:Auto 
Trd2wr(Same/Diff Rank)..................:Auto 
Dimm1 Clock Skew Control...............:Auto  ps
Dimm2 Clock Skew Control...............:Auto  ps

Motherboard Voltage Control
Voltage Type.………... Manual
CPU
CPU Vcore….……….........................: 1.27500
CPU Termination…..... 1.200V*.......: 1.200V (Normal)

CPU PLL…………………....1.500V*.......: 1.550V (Normal)

CPU Referen.…………....0.755V*.......: 0.805 (Auto)

CPU Reference2………,,0.800V*.......: (Didn't get this option)

MCH/ICH
MCH Core…………….....1.100V...........: 1.100V (Auto)

MCH Reference….…….0.800V...........; (Didn't get this option)

MCH/DRAM Ref.…......0.900V...........: (Didn't get this option)
ICH I/O……………….....1.550V............: 1.550V (Auto)
ICH Core…………...……1.100V............: (Didn't get this option)

DRAM
DRAM Voltage ……....1.800V............: 2.000V
DRAM Termination .…0.900V............: (Didn't get this option)
Channel A Reference 0.900V............: (Didn't get this option)
Channel B Reference 0.900V............: (Didn't get this option)

Advanced Settings
Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Disabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
Virtualization Technology................: [Disabled]

Integrated Peripherals
Legacy USB Storage Detect ..............[Disabled]

I'll go ahead and set the RAM stuff first (command and timings).

[Nickel020]

Re: EP43-DS3L Overclocking Help w/ E8400

Thanks for the BIOS pics, it appears that the board is indeed missing a fe voltage settings, but they're the ones you never change so it doesn't matter.

Comannd thingie on auto is fine btw.

The "flashing" is not problem, I mean the RAM is made for that much voltage. I just look at as a sign that I've got that setting right ;-)
You can leave the RAM timings on auto for the moment, they don't bring no noticeable performance for Core 2 anyway to be honest. You can emasure but, it's too small to notice.

What PSU do you have btw? I just checked the settings and they seem fine, except that you should disable X.M.P. so I think the problem may lie somewhere else. A cheap PSU may be fine for stock settings but may keep you from overclocking.

[bob78h]

Re: EP43-DS3L Overclocking Help w/ E8400

PSU is OCZ Stealth Stream 500W. I think its decent quality.

[Nickel020]

Re: EP43-DS3L Overclocking Help w/ E8400

Yep, OCZ is decent.

Try bumping up CPU termiantion by 0.1V.

[bob78h]

Re: EP43-DS3L Overclocking Help w/ E8400

Hmm tried that no luck. Mostly it'll get stuck in a reboot loop with the fan speed going fast then slow then reboot for a while before it finally POSTs and the settings are normal. I think it may have something to do with RAM settings as when I changed them to 4-4-4-15 and 2.2V it wouldn't POST but at 5-5-5-18 and 1.8V it works ok. But when I did that I didn't get the overclocking/voltage warning, that only happened when I changed the FSB/voltages...