Mushkin Enhanced 998659
1600 9-9-9-24 @ 1.6v at Rated Frequency
If the following fails then you've got a problem with your RAM. Oddly, they are not listed as XMP so don't use that setting ->
http://www.mushkin.com/Memory/Blackline/998659.aspx
Your statements clearly are that of low DRAM Voltage and/or {IMC} QPI Voltage are the problem(s) ->
"1 and 2 didnt work..3 didnt work at bus voltage 1.6 and 1.62..bsod after prime95..i noticed my computer shows 6gb whenever i manually set the bus voltage and 4gb whenever the voltage is on auto. im a little worried about going as high as 1.65v though.."
No, 1.65 vs 1.60 DRAM will NOT damage your RAM; 1.60 RAM can go to 1.90v or +0.30v before any damaging longterm impact. I much rather have a higher DRAM {RAM} than a high QPI {CPU IMC} voltage. The QPI is much more 'damaging' longterm to the CPU and the QPI has a lower tolerance.
For example, I would by a factor of 20X have DRAM Voltage 1.65v or even up to 1.70v verses 1.62 DRAM with 1.35v QPI which to me is high even for 1.65v RAM using 6-sticks on the X58. A QPI > 1.40v is considered damaging with the CPU at most OC and 9/10 makes the likelihood of a BSOD very high.
Therefore if STABLE: DRAM Voltage ~1.65v and QPI Voltage ~ 1.25v works then eureka!!!
[1] [strike]Easy - but might Post fail or BSOD {XMP RAM: 3 sticks no problem, 6 sticks can be an issue}:
Ai Overclock Tuner [X.M.P.]
[/strike]
[2] Manual Speed with Auto Timings:
Ai Overclock Tuner [Auto]
DRAM Frequency -> [DDR3-1600 MHz]
DRAM Bus Voltage [1.65v] ± use closest value available ; per Rated spec voltage
QPI/DRAM Voltage {IMC voltage}
1.25v~1.30~1.35v
[3] Full Manual:
Ai Overclock Tuner [Manual]
DRAM Frequency -> [DDR3-1600 MHz]
DRAM Timing Control /Enter
DRAM CAS# Latency [9]
DRAM RAS# to CAS# Delay [9]
DRAM RAS# PRE Time [9]
DRAM RAS# ACT Time [24]
-
DRAM Timing Mode [2N]
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DRAM Bus Voltage [1.65v] ± use closest value available ; per Rated spec voltage
QPI/DRAM Voltage {IMC voltage}
1.25v~1.30~1.35v