PDP Memory with EPProfile on ex38-ds4

[ChaosTheory]

Is it possible to use EPP profile of memory on Gigabyte ex38-ds4 board? I always thought that its only possible on MB with nvidia chips, so didnt bother myself with this although I own this system for almost a year now. I decided to ask after reading overclocking and BIOS tweaking Guide thread here on tweaktown:

Memory Performance Enhance__________ [Normal]
This setting tells the BIOS to look at your memory for the existence of an EPP
(Enhanced Performance Profile) stored in your memories SPD chip.
I have confirmed this works, if the memory has EPPs, and improves performance. Leave set to Normal for now.

I didnt found such option in my bios (F6b).
I own these: PDC22G6400LLK
Right now my memory runs with 5-5-5-16 (400MHz, 1.8V as reported by cpuz), but EPP allows it to run 4-4-4-12@400MHZ.
Here's CPUz report:

[Nickel020]

Re: PDP Memory with EPProfile on ex38-ds4

Performance Enhance does not necessarily look at the EPP, it usually sets RAM timings according to presets from the BIOS itself.
If you have the newest BIOS ther might be an X.M.P. option, which is the same as EPP. X.M.P. was originally designed just for DDR3 RAM, but the msot recent BIOSes have it for DDR2 as well and it is compatible with EPP now.

[ChaosTheory]

Re: PDP Memory with EPProfile on ex38-ds4

OK, thanks, i will check my bios right now (I had flashed F6b late at night and didnt look at it too much).

Edit: no Mem Performance Enhance, no XMP option in f6b bios. I guess i could manually set memory timings and volt., but I really dont want to overclock.

[kick]

Re: PDP Memory with EPProfile on ex38-ds4

i dont know your mbrd,but enter the epp settings manually should be good.

[ChaosTheory]

Re: PDP Memory with EPProfile on ex38-ds4

But should I change volts to 2.2 (as cpuz shows: 400MHz - 4-4-4-12 - @2.2v/EPP#1)? Right now it runs at 2.1v (5-5-5-16) - that what bios says, but according to cpuz the voltage at those timings should be 1.8 ... and IS 1.8 ..., so i am a little confused here... Which is right: my bios or cpuz?

[kick]

Re: PDP Memory with EPProfile on ex38-ds4

your particular memory has 5 profiles.
3 of them are the standard ddr2 ones
The 2 epp ones are for best memory performance at those speeds.
cpuz "reads" that information from the memory.
If your motherboard doesnt detect the enhanced performance profiles,your best bet is to enter the timings yourself and up the voltage to what the epp says for "maximum performance"
4-4-4-12 at 2.2 400/800mhz is better than 5-5-5-16.but if you can set your memory to run at the 500/1000 mhz 2.3 epp that would be even better.
If you dont want to overclock at all leave the memory at 400mhz but do use the epp settings for 400mhz,the memory is tested for it. The 500mhz isnt really "overclocking" either as long as theres no problem on the mbrd with the memory working at 1000mhz.

The voltage you enter in the bios isnt allways what you get at the ram.. .See in my sig where I have 2.2 v entered in bios. What I get on the ram(measured with cpuz and speedfan is 2.16/2.17.

[ChaosTheory]

Re: PDP Memory with EPProfile on ex38-ds4

OK, I changed my mem to [email protected] and it works fine but I want to be sure I did everything right: ive changed only above timings, but left "advanced timing control" in bios intact = set on auto - its ok, I guess?
Also I am using "extreme" setting under "Performance Enhance" - I hope it wont touch my memory voltage or something?
Thanks for your help
BTW, I will leave that second EPP profile for now, but I guess it will be usufull when Ill decide to overclock my CPU to 3GHz at least (ive tried but temps went up to over 70C in a minute or so of stress testing -at 1.4 v- stock cooler...)

[Lsdmeasap]

Re: PDP Memory with EPProfile on ex38-ds4

Yes, extreme does change ram voltage and sometimes MCH voltage.

If you would like some advice from me please list me your full settings you are using and I will advise back >>>

This is Just a template I use to ask people their settings, pay no attention to the numbers in it, replace with yours

Robust Graphics Booster___________ [Auto]
CPU Clock Ratio ____________ [8] 
Fine Clock Ratio ____________[0.5]
CPU Host Clock Control_ [Enabled]
CPU Host Frequency (MHz)__________ [450] 
PCI Express Frequency (Mhz)_______ [100]
C.I.A. 2__________________________ [Disabled]
System Memory Multiplier (SPD)____ [2.00]
DRAM Timing Selectable_______ SPD __ [Manual]

Performance Enhance = [Standard]

CAS Latency Time________________ ?
Dram RAS# to CAS# Delay_________ ?
Dram RAS# Precharge Delay_______?
Precharge Delay (tRAS)__________ ?

ACT to ACT Delay (tRRD)_________ ?
Rank Write to READ Delay________ ?
Write to Precharge Delay_________ ?
Refresh to ACT Delay______________ ?
Read to Precharge Delay__________ ?
Static tRead Value_______________
Static tRead Phase Adjust________ [Auto]

CPU/PCIEX Clock Driving Control [800mV]
CPU Clock Skew Control [normal]
GMCH Clock Skew Control [Normal]

System Voltage Control____ [Manual]
DDR2 OverVoltage Control__ [+0.300V] 
PCI-E OverVoltage Control_ [+0.1V] 
FSB OverVoltage Control___ [+0.1V] 
(G)MCH OverVoltage Control [+0.1V] 
CPU Voltage Control_______ [1.25]

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

[ChaosTheory]

Re: PDP Memory with EPProfile on ex38-ds4

Here.

Robust Graphics Booster___________ [Auto]
CPU Clock Ratio ____________ [8] 
Fine Clock Ratio ____________[0.5] - dont have this    
CPU Host Clock Control_ [Disabled]
CPU Host Frequency (MHz)__________ [333] 
PCI Express Frequency (Mhz)_______ [Auto]
C.I.A. 2__________________________ [Disabled]
System Memory Multiplier (SPD)____ [Auto]
DRAM Timing Selectable_______ SPD __ [Manual]

Performance Enhance = [Extreme]

CAS Latency Time________________4
Dram RAS# to CAS# Delay_________4
Dram RAS# Precharge Delay_______4
Precharge Delay (tRAS)__________12

ACT to ACT Delay (tRRD)_________ 3 [Auto]
Rank Write to READ Delay________3 [Auto]
Write to Precharge Delay_________6 [Auto]
Refresh to ACT Delay______________ 42 [Auto]
Read to Precharge Delay__________ 3 [Auto]
Static tRead Value_______________5 [Auto]
Static tRead Phase Adjust________ 0 [Auto]

CPU/PCIEX Clock Driving Control [800mV]
CPU Clock Skew Control [normal]
GMCH Clock Skew Control [Normal]

System Voltage Control____ [Manual]
DDR2 OverVoltage Control__ [+0.40V] 
PCI-E OverVoltage Control_ [Normal] 
FSB OverVoltage Control___ [Normal] 
(G)MCH OverVoltage Control [Normal] 
CPU Voltage Control_______ [Normal
Loadline Calibration________[Auto]
CPU GTLREF1 Volt Ratio________Normal
CPU GTLREF1 Volt Ratio________Normal

Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]-dont have
x C4/C4E State Support..................: [Disabled]-dont have
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___________________[enabled] *Note* Must be enabled to flash from USB

The bios version is F6b, power supply - 500W tagan. If my above settings are ok, I would like to know what would be best settings to overclock that CPU (e6750) but with stock cooler (dont have money right now but im thinking about buying this one in future: Newegg.com - ARCTIC COOLING AC-Freezer XTREME 120mm CPU Cooler - CPU Fans & Heatsinks)
Thanks.

[Lsdmeasap]

Re: PDP Memory with EPProfile on ex38-ds4

That would be a good cooler, I am not sure how far you can get overclocking on stock cooler I have never used one myself

I would advise you to set your ram voltage to only +0.2-0.3 (2.0-2.1V) as 2.2 is not needed and too much, and likely may be more then that unless you change Performance enhance to standard. You can look in the PC Health section of the BIOS and see what you are getting with the settings you have above right now, and you can also check with Everest Ultimate in the Motherboard/sensor tab

Is that stable 100%? Can you post me a screenshot of this program with those settings >>
Tweakers.fr

Do you want advise on setting all your settings or not? Let me know, and also let me know of a CPU Speed you want to try with your stock cooler and I will advise back

[ChaosTheory]

Re: PDP Memory with EPProfile on ex38-ds4

It seems stable. Since ive changed those settings I was using my PC like 12 hours a day without any issues (was playing EmpireTW a lot) but I will lower mem voltage as you suggest. Here the screen:

As to CPU overclocking: I was pretty sure I could do 3GHz on stock cooler, tried it but didnt touch voltage myself and allowed motherboard to adjust it automatically and it set it to 1.4v no matter if it was 2.8GHz or 3GHz. And I said earlier the temps reached 70C in a minute or so.

[Lsdmeasap]

Re: PDP Memory with EPProfile on ex38-ds4

Ya, I would expect 70c in a minute or so with a stock cooler, and especially so if you use Auto voltages. Do not do that and it wont get so hot. For 3Ghz you likely only need 1.325-1.35 Vcore if not less

Those settings all look ok, if you have issues rasing FSB after you think you have tried plenty of volts then you may need to raise tRD to 6-7 (Static tRead Value)