Gigabyte GA-EP31-DS3L Rev1.0

[donnyboy]

Won't boot any lower than those values.

Updated bios to F5a Beta. Loaded optimized defaults immediately after flashing as per the instructions in the manual.

[Lsdmeasap]

Maybe go back to a NON Beta BIOS and try again, you should be able to use lower for sure

[donnyboy]

Removed the battery and put it back after 5 mins. Loaded optimized defaults immediately and reverted to your suggested settings. Boots at 8x402Mhz = 3.21Ghz only when PCI-E frequency is set to "Auto".

[donnyboy]

Reflashed to F4 bios following manual instructions and still no luck at FSB400Mhz when PCI-E is set to 100.

Cleared CMOS by removing battery again and loaded optimized defaults, yet the problem persists :(

Current Bios Settings:
Robust Graphics Booster___________ [Auto]
CPU Clock Ratio ____________ [9]
CPU Host Clock Control________ [Enabled]
CPU Host Frequency (MHz)__________ [341]
PCI Express Frequency (Mhz)_______ [100]
C.I.A. 2__________________________ [Disabled]
System Memory Multiplier (SPD)____ [2.40]
DRAM Timing Selectable_______ SPD __ [Manual]
memory frequency (mhz)_______800_______818

Performance Enhance = [Standard]


CAS Latency Time________________5
Dram RAS# to CAS# Delay_________ 5
Dram RAS# Precharge Delay_______ 5
Precharge Delay (tRAS)__________ 18

ACT to ACT Delay (tRRD)_________ 3 ________ 3
Rank Write to READ Delay________ 3 ________ 3
Write to Precharge Delay_________ 6 ________6
Refresh to ACT Delay__________ 42 _________42
Read to Precharge Delay__________ 3 __________3
Static tRead Value_______________ 4 __________ 8 << can't go lower
Static tRead Phase Adjust________ [Auto]

System Voltage Control____ [Manual]
DDR2 OverVoltage Control___ +0.1
PCI-E OverVoltage Control___ +0.1
FSB OverVoltage Control___ +0.1
(G)MCH OverVoltage Control___ +0.1 (0.3V Max)
CPU Voltage Control_______ [1.325000]

Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled]
CPU Enhanced Halt (C1E)................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
Virtualization Technology.................: [Disabled]

[Lsdmeasap]

What letter or symbol are you using beside your ram multi?

Static Tread may not go lower because of your ram, 7 should work though but not always. You may need more volts then your ram allows under warranty to use 7

Why are you still not using the correct Refresh to act setting? You need to set 52-62, and I would for now set 65 to be sure that is not the issue. And you need at least 2.-.3 MCH voltage

Have you tried (With all previous suggestions as well) no extra voltage and or more voltage to PCI volts? Tried PCI-E 101-105?

[donnyboy]

There are no letters or symbols beside my RAM Multiplier.
Available options are:
2.0
2.4
2.5
3.0
4.0+

Will try increase DDR Overvoltage to +0.3 to see if 7 is possible

Will try at 65

PCI-E can't be set at anything less than 120Mhz when FSB is set to 400Mhz. But then i'll retry like you've suggested to be on the safer side.

[Lsdmeasap]

Ok, use 2.00 or 2.40 or 4.00+, dont use 2.50 or 3.00.

The 2.00 and 2.40 are 333 strap and 4.00+ is 1066 strap, they others are also on the 1066 strap but may not work so great

2.1V may not be good for your ram since it is rated at 1.8 ( I would personally use 1.9-2.0 though. And normally 1.8V ram is Budget so it may die easily with 2.1, and that also may be the reason Static tRead of 7 wont work for you

120 is way to high for PCI-e Freq, you will corrupt your Hard drive and possibly damage can be done. 110 is a max, and not suggested to be used