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Help with GA-EP43-DS3L and E8400?

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February 14, 2009 3:43:02 AM

Hi, I'm a bit of an overclocking noob (as in a lot) so I'm looking for some help overclocking my E8400 on a Gigabyte EP43-DS3L.
I've tried to follow some of the beginners guides, increasing FSB by a little bit and setting the RAM speed back but its not working... After exiting the BIOS it won't POST the first time, then it'll restart with the CPU settings restored to default and boot fine. Its been annoying me a lot, if you guys could post BIOS settings that would be great. Thanks.

More about : ep43 ds3l e8400

February 14, 2009 10:00:54 AM

Check out the excellent OC guides in the forum stickies.
February 14, 2009 2:30:13 PM

I did, I'm having a lot of trouble though. I can't get the computer to POST changing any settings. Even moving the FSB up a little bit and adjusting other settings. I'm only trying to get to 3.6 GHZ right now and I moved from 3.00 to 3.16 (FSB 350) and it doesn't POST. Then it'll restart a few times and the old settings will be restored.

I was wondering if there are settings I'm missing or something?
Heres my MB Intelligent Tweaker:

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

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

>>>Standard Clock Control
CPU Host Clock Control->Enabled
CPU Host Frequency (Mhz)->333
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

What settings should I try to get on my way?
Thanks.
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February 15, 2009 12:31:01 AM

What's your CPU's Vid? What is the spec voltage of your RAM? What is the speed and latency rating of your RAM? Have you tested your system (without OC) to make sure it's stable (i.e. run memtest86+ O/N without errors and run a prime95-based stress testing program for at least many hours without errors)?
February 15, 2009 4:30:18 PM

System Memory Multiplier (SPD)->2.40B?

A lost of OC problems are due to incorrect memory freq. When increase FSB, memory freq goes up as well. Try to keep memory freq low like ratio: 1:1 with FSB freq so you can at least eliminate memory as a culprit of your problem.

CPU Vcore->1.22500V?

increase it.
May 13, 2009 3:48:34 PM

I have the same motherboard and CPU as this guy and I am getting the same problems. After saving the setting the PC restarts twice and then reset to default.

I have set System Memory Mulitplier to 2.00B and CPU Vcore to 1.40000v and its still doing it :( 
May 13, 2009 4:06:23 PM

Have the same board with a Q9450 @ 3.3Ghz. No problems.
May 13, 2009 4:32:38 PM

Hello I have fixed it if your settings the FSB to 400 then you needto set this to

System Memory Multiplier (SPD)-> 2.00D

not

System Memory Multiplier (SPD)-> 2.00B
------------------------------------------------------------

I am running a stress test now what tempritures are bad for my CPU its been running 10mins and its on 74c, at what point should i start getting worried?
May 13, 2009 6:54:13 PM

74c is very high.
a b V Motherboard
a b K Overclocking
May 13, 2009 8:16:55 PM

Chudz said:
I have set System Memory Mulitplier to 2.00B and CPU Vcore to 1.40000v and its still doing it :( 


Do you still have your vcore set to 1.4v ??????

If you do, you may want to lower it. Intel recommended max is 1.3625v and if your running an E0 stepping you won't even need that.

Also the B,D after the memory multiplier is just a memory strap. You have just loosened up the timing, could be telling you a bump to the NB voltage is in order.

May 13, 2009 10:18:43 PM

in CPU-Z it is saying 1.312 V so I guess im in the safe zone?
May 13, 2009 10:29:32 PM

Wont let me edit for some reason :( 

I have changed it to 1.300 V now, what temps should I be looking for in CoreTemp when running Prime95?
!