Cold Boot Errors: Asus P7P55D-EVO; F3-12800CL9D-4GBNQ

[LozColdBootMemoryErrors]

Problem is this cold boot memory errors, every day at first power up. I actually boot up into Memtest86+ v4, in the morning. And receive hundreds of errors. I must power on/off (cannot be restarted otherwise errors exist again (i.e. Esc from Memtest will continue the errors)) then Memtest will pass the test. I remove the disk and boot into Win7 64 bit and the computer will run all day and night without issue.

I purchased the computer last week and built it during the week. I had to reinstall Win7 twice as the memory errors caused corruption.

HARDWARE
Seagate SATAII NCQ 1.5TB 7200RPM 32mb Cache x 2 in RAID0 setup
Antec Nine Hundred Two Tower Gaming Case w Side Window black (no PSU)
Asus P7P55D-EVO P55 4DDR3 FSB2133(OC) RAID 2GBLAN 3xPCIEx16 8SATA ATX
Intel Core i5 750 Processor LGA1156 2.66GHz 8MB Cache CPU
G Skill 4G(2x2G) DDR3 1600Mhz PC12800 9-9-9-24(CL9D-4GBNQ)
Sapphire HD5850 1G GDDR5 PCIE 2D HDMI
SeaSonic X-750 80Plus Gold Modular PSU
Asus DRW-22B2ST 22x DVDRW SATA Black NERO8

BIOS updated to latest 1207
OS: Microsoft Windows 7 Pro 64bit

BIOS Config
I have manually set the bold entries in the BIOS to:
AI Tweaker Menu
Air Overclock Tuner: D.O.C.P
DRAM O.C. Profile: DDR3-1600MHz
CPU Ratio Setting: 17
Intel SpeedStep Tech: [Enabled]
Intel TurboMode Tech: [Enabled]
Xtreme Phase Full Power Mode: Auto
BLCK Frequency: 160
PCIE Frequency: 100
DRAM Frequency: 1600
Under DRAM Timing Control submenu

1st Information
DRAM CAS# Latency: 9
DRAM RAS# to CAS# Delay: 9
DRAM RAS# PRE Time: 9
DRAM RAS# ACT Time: 24
DRAM RAS# to RAS# Delay: Auto
DRAM REF Cycle Time: Auto
DRAM WRITE Recovery Time: Auto
DRAM READ to PRE Time: Auto
DRAM FOUR ACT WIN Time: Auto

2nd Information
DRAM Timing Mode: 2N
DRAM Round Trip Latency on ChA/B: Auto

3rd Infromation
I've left all this as Auto
Combinations of WRITE/READ to WRITE/READ (DD/DR/SR): Auto

CPU Differential Amplitude: Auto
CPU Clock Skew: Auto
CPU Voltage Mode: Offset
Offset Voltage: Auto
IMC Voltage: Auto
DRAM Voltage: 1.5V
CPU PLL Voltage: Auto
PCH Voltage: Auto
DRAM DATA REF Voltage on ChA/B: Auto
Load-Line Calibration: Auto
CPU Spread Spectum: Auto
PCIE Spread Spectrum: Auto

Testing
Once the system is past its, cold boot issues, I have run a 10hour Memtest without any errors. The system is currently running fine; and I have operated the system non-stop for 16hours yesterday, again no issues.

Question is: why am I getting these Cold Boot memory errors. Should I return the RAM?


UPDATE:
02/Mar/2010
I have returned the RAM to the supplier as a DOA item within their 7day policy. Whilst they just provided a replacement part, I also purchased another one unit (same model) so that I have 8G in total. I ran a 1 pass Memtest86 without errors; however the PC was only switched off for 2 hours. The real test will be tomorrow morning's cold boot...

UPDATE 2:
03/Mar/2010 8hr poweroff: Cold boot Memtest - passed! Replacing the RAM seems to have done the trick.

FINAL UPDATE:
04/Mar/2010 24hr poweroff: Cold boot Memtest - passed a single pass.
05/Mar/2010 8hr poweroff: Cold boot Memtest - passed a single pass.

Looks like the replacing those RAM units has fixed the issue and I can boot to Win7 from Cold boot for now on.

[GSKILL TECH]

Thank you for the elaborate testing. I'm sure many other users will find it very helpful.

Thank you
GSKILL SUPPORT