EP45-DS3L Vcore reverts to default on cold boot

[shoyu_burner]

Hi all,

I increased my mobo VCORE a few months ago but every time I cold boot (system is off and then case power button is used to turn on) it reverts to the default vcore as defined by the CPU. I need to do one warm boot (system reboot using case restart button or windows restart option) to get the modified vcore value to stick. I use CPU-Z to check vcore.

So basically, every time i turn on my computer, once windows has finished loading I do an immediate reboot. This always works to set the vcore properly, and after this point my system is stable. I've been doing this routine for 3 months. Now and then I play with bios settings to try and fix this but no luck yet. I haven't tried doing the reboot at earlier points yet in the boot sequence yet. On the occasions when I've forgotten to reboot i'm brutally reminded after a short while because applications will start crashing or the system will freeze.

I've tried disabling 'cpu enhanced halt (C1E)', 'C2/C2E state support', and 'CPU EIST function' in the bios but it makes no difference. I've played with a few other settings, but nothing significant. Could it be my bios version?

Here's my hardware:
- GA-EP45-DS3L, board rev 1.0, bios F9
- Pentium E5200 @ 266FSB (3.33GHz), 1.30625v(bios)
- 2 x 1GB Kingston HyperX DDR2 1066 CL5
- Corsair VX 450W power
- Sapphire Radeon HD4830
- Promise Ultra100TX IDE pci card
- Seagate 200GB and 160GB IDE drives (promise controller)
- Toshiba IDE DVD-ROM (promise controller)
- Plextor IDE DVD+R burner (onboard IDE)
- Plextor IDE CD burner (onboard IDE)

Other details:
- WinXP SP3
- No SATA devices
- DDR2 running dual channel in slot 1 & 3 @ 1.96v(bios) 800MHz, have not tried using just a single stick yet as I have no problems with posting/booting or random crashes.
- Overclock stable in Prime95, Orthos, OCCT, 3DMark0X using various test types (CPU, mem, blend, graphics)

Thanks for taking the time to read this.

[shoyu_burner]

Re: EP45-DS3L Vcore reverts to default on cold boot

*bump*
Anyone have any ideas on this? Thanks!

[shoyu_burner]

Re: EP45-DS3L Vcore reverts to default on cold boot

bump

Still living with this issue. System is stable but getting tired of double booting all the time. Anyone have any ideas?

In the meantime I'm working on the settings/advice in this post right now, will post details shortly.

http://forums.tweaktown.com/295784-post5.html

http://forums.tweaktown.com/f69/gigabyte-bios-templates-give-us-your-settings-33613/#post312015

Thanks

[shoyu_burner]

Re: EP45-DS3L Vcore reverts to default on cold boot

Problem Solved!

The setting that was the issue is 'Legacy USB Storage Detect'. I had it set to Enabled all this time. Changing it to the the recommended setting of Disabled solved my vcore cold boot problem!

Thanks much to this forum and all the great people contributing to it!

FYI Here's my settings. System is and has always been 100% stable:

----------------------------
Motherboard: EP45-DS3l, Rev# 1.0: Bios Version: F9
Cpu: Pent E5200 dual-core
Ram: 2 x 1GB Kingston HyperX DDR2 1066 CL5
Power Supply Unit: Corsair VX 450W

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster -------------- : [Auto]
CPU Clock Ratio ---------------------- : [12x]
Fine CPU Clock Ratio ----------------- : [+0.5]
CPU Frequency ---------------------: 3.33GHz

Clock Chip Control
Standard Clock Control
CPU Host Clock Control --------------- : [Enabled]
CPU Host Frequency (Mhz) --------------: [266]
PCI Express Frequency (Mhz) ---------- : [100]

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

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

DRAM Performance Control
Performance Enhance ------------------- : [Standard]
Extreme Memory Profile ---- (X.M.P.) --- : N/A
(G)MCH Frequency Latch ---------------- : [266Mhz]
System Memory Multiplier --------------- : [3.00A]
Memory Frequency (Mhz) ---------------- : [800]
DRAM Timing Selectable ---------------- : [Manual]

Standard Timing Control
CAS Latency Time ------- 5 ---------- : [5]
tRCD -------------------- 5 ---------- : [5]
tRP --------------------- 5 ---------- : [5]
tRAS ------------------- 18 ---------- : [15]

Advanced Timing Control
tRRD -------------------- 3 ---------- : [Auto]
tWTR ------------------- 3 ---------- : [Auto]
tWR -------------------- 6 ---------- : [Auto]
tRFC ------------------- 42 ---------- : [Auto]
tRTP -------------------- 3 ---------- : [Auto]
Command Rate (CMD) ----------------- : [Auto]

Driving Strength Profiles
Driving Strength --------- : Press Enter <--- press ENTER to modify memory sub-timings when overclocking

Channel A
Static tRead Value --------------------- : [Auto]
tRD Phase0 Adjustment ------------------ : [Auto]
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 --------------------- : [Auto]
tRD Phase0 Adjustment ------------------ : [Auto]
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
CPU
Voltage Types------------ Normal -------- Current -----
Load-Line Calibration ----------------- : N/A
CPU Vcore --------------- 1.20000V ---- : [1.30625V]

CPU Termination --------- 1.200V* ----- : [1.200V]
CPU PLL ----------------- 1.550V* ----- : [1.550V]

CPU Reference ----------- 0.805V* ----- : [Auto]
CPU Reference2 ---------- ?.???V* ----- : N/A
MCH/ICH
MCH Core ---------------- 1.100V ------- : [Auto]
MCH Reference ----------- 0.760V ------- : [Auto]
MCH/DRAM Ref ------------ ?.???V ------ : N/A
ICH I/O ------------------ 1.550V ------- : [Auto]
ICH Core ---------------- ?.???V ------- : N/A
DRAM
DRAM Voltage ------------ 1.800V ------- : [1.960V]
DRAM Termination -------- ?.???V ------- : N/A
Channel A Reference ----- ?.???V ------- : [Auto] Did not find this setting in my bios
Channel B Reference ----- ?.???V ------- : [Auto] Did not find this setting

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

Integrated Peripherals
Legacy USB Storage Detect ------------- : [Disabled]
__________________