More Vdimm on OCZ Gold GX XTC PC4000?

[ocing newbie]

Well I got a new 2gb set to replace my dead ballistix. Sadly, I haven't found any settings that are memtest stable at 260mhz. I've tried vdimm of 2.6, 2.6+.03, and 2.7. These voltages undervolt to 2.6, 2.65, and 2.7. I've read samsung UCCC has an optimal voltage of 2.66-2.67. OCZ warranties this memory for 2.9+/-5%, which is much higher at about 3.0 volts max. I also tried using these settings Eldonko used for his mushkin with UCCC but they didn't help me get 260. Right now I'm using optimized defaults except for 3-4-3-8, as they have higher bandwith and same stability at 500mhz as the other bios settings. I guess I'm just gonna have to try running with more vdimm and see if it helps. How much should I try? Are these timings good to use for this mem? Should I try a different bios? I'm about to get a new cpu and am interested to find my max memory overclock to pick what cpu multiplier I want to have availible. 260x10 would be nice.

Command Per Clock Enable
TCL-3.0
TRCD-4
TRAS-08
TRP-3
TRC-7
tRFC-16
TRRD-02
tWR-03
tWTR-02
TRWT-04
tREF-0780
tWCL-01
DRAM Bank Interleave-enabled
DQS Skew Control - auto
DQS Skew Value- auto
DRAM Drive Strength - Level 7
DRAM Data Drive Strength - Level 3
Max Async Latency- 8ns
DRAM Response Time - Fast
Read preamble Time- 5ns
Idle Cycle Limit- 32clks
Dyanamic Counter - Enable
r/w Queue bypass: 16X
Bypass Max - 07X
32 Byte Granularity - Disable (4 bursts)
Vdimm-2.67v, 2.71v in BIOS (Expert undervolts)

This is the ram just so you know.
http://www.newegg.com/Product/Product.asp?Item=N82E16820227066

 

[SteveOCZ]

I would grab the 704-2BTA bios for the board and flash to that one.

Give these timings a try and work your way up from there

FSB Bus Frequency............................. 250 MHz
LDT/FSB Frequency Ratio....................... Auto
CPU/FSB Frequency Ratio....................... 8
PCI eXpress Frequency......................... 100

CPU Voltage .................................. 1.400v
LDT Voltage .................................. 1.30v
ChipSet (NF4) Voltage ........................ 1.60V
DRAM Voltage ................................. 2.60v
+0.03 if not 3.2V ............................ enable

Memclock (DRAM Frequency) .................... 200
1T/2T Timing (Command Per Clock).............. 1T
CAS Latency (Tcl)............................. 3T
RAS# to CAS# delay (Trcd)..................... 4T
Min RAS# active time (Tras)................... 8T
Row precharge time (Trp)...................... 3T
Row Cycle time (Trc).......................... 11T
Row refresh cyc time (Trfc)................... 16T
Row to Row delay (Trrd)....................... 3T
Write recovery time (Twr)..................... 3T
Write to Read delay (Twtr).................... 2T
Read to Write delay (Trwt).................... 3T
Refresh Period (Tref)......................... 3120
DRAM Bank Interleave.......................... Enabled

DQS Skew Control.............................. Auto
DQS Skew Value................................ 0
DRAM Drive Strength........................... Normal 3 or 4 (called Level 6 or 8 in other bios')
DRAM Data Drive Strength...................... Level 2
Max Async Latency............................. 8ns
DRAM Response Time............................ Normal
Read Preamble Time............................ 6ns
IdleCycle Limit............................... 256
Dynamic Counter............................... Disable
R/W Queue Bypass.............................. 16x
Bypass Max.................................... 7x
32 Byte Granularity........................... Disable (4 Bursts)