eva2000

reserved #8

eva2000

reserved #9

eva2000

Updated post #2 & #3 with more results and findings

eva2000

12GB - 6x2GB A-Data 2000X
@DDR3-1909Mhz 7-8-7-25 2T at 1.62v
(Kit 1 + 2: module #1 + #2 + #4 + #3 + #5 + #6)

Now to test higher memory frequency with 7-8-7-25 timings at 1.62v vdimm. 1T results in ~10% more memtest86+ v4.0 reported bandwidth than 2T, but 1T was only stable for Super Pi 1M and failed 32M. 2T was much easier to pass Super Pi 32M @DDR3-1909Mhz 7-8-7-24 2T with tRFC 110, tFAW 37 and B2B 4.

Swapped module #5 and #2 places so the 6x2GB A-Data 2000X config is as follows module

• Dimm 1 = module #1
• Dimm 2 = module #2
• Dimm 3 = module #4
• Dimm 4 = module #3
• Dimm 5 = module #5
• Dimm 6 = module #6

System:

• Intel Core i7 920 3845B260
• EK Supreme LT 1366 / FESER 480 / MCP655
• Asus P6T6 WS Revolution
• A-Data Xtreme Series 2000X 9-9-9-24 1.6-1.8 rated memory
• 512MB Inno3D 8800GT OC Edition 190.62WHQL
• 750GB Samsung SATA
• Pioneer DVR-217 DVD-RW
• Corsair HX1000 PSU
• Dual Boot - WinXP Pro SP3 (nLite fully updated) with Vista Theme & Win7 Ultimate 64bit RTM

1T RTL A/B/C = 58/60/62

2T RTL A/B/C = 58/60/61

6x2GB = 12GB A-Data 2000X Max Validation
@DDR3-2044Mhz 7-8-7-25 2T at 1.62v / 1.5v QPI/DRAM

Managed to push 6x2GB A-Data 2000X to DDR3-2044Mhz 7-8-7-25 2T validation with 1.5v QPI/DRAM and 1.62v

eva2000

Now pushing 12GB A-Data 2000X to 8x32M Pi stable @DDR3-2000Mhz 8-9-8-25 2T at 1.62v vdimm with 1.50 QPI/DRAM uncore voltage with max validation at same voltages @DDR3-2112Mhz 8-9-8-25 2T!

System:

• Intel Core i7 920 3845B260
• EK Supreme LT 1366 / FESER 480 / MCP655
• Asus P6T6 WS Revolution
• A-Data Xtreme Series 2000X 9-9-9-24 1.6-1.8 rated memory
• 512MB Inno3D 8800GT OC Edition 190.62WHQL
• 750GB Samsung SATA
• Pioneer DVR-217 DVD-RW
• Corsair HX1000 PSU
• Dual Boot - WinXP Pro SP3 (nLite fully updated) with Vista Theme & Win7 Ultimate 64bit RTM

12GB - 6x2GB A-Data 2000X
@DDR3-2000Mhz 8-9-8-25 2T at 1.62v
(Kit 1 + 2: module #1 + #2 + #4 + #3 + #5 + #6)

tRFC = 110
tFAW = 38
B2B = 4

HyperPi v0.99b - 8x32M Pi



Single Super Pi 32M



Everest Bandwidth

12GB - 6x2GB A-Data 2000X
@DDR3-2112Mhz 8-9-8-25 2T at 1.62v
(Kit 1 + 2: module #1 + #2 + #4 + #3 + #5 + #6)

eva2000

FYI, I bought another 2 sets of these as they're the cheapest per GB performance memory available in Australia right now just under 6GB Gskill Trident 2000C9 in terms of per GB costs - AUD$35.5/GB vs AUD$36.50.

Two more sets of 4GB A-DATA 2000X dual channel (yes 20GB A-Data 2000X!) hoping to get some that like higher vdimm but got the opposite, one set DDR3-2000Mhz 7-8-7-24 1T at 1.58v and DDR3-2046Mhz 8-9-8-24 1T at 1.58v for memtest86+ v4.0 looping and other DDR3-2000Mhz 7-9-7-24 1T at 1.60v. Optimal vdimm getting lower and lower LOL.

Unfortunately, DDR3 prices seem to be skyrocketing lately, so will be hard to get hold of other memory for my x58/p55 memory kit comparison reviews I have planned.

dinos22

hey george
good idea testing those modules
it's interesting that some sticks dont like above 1.64v heh at least now you know what not to do hehe

eva2000

Yeah wonder if they'll behave differently on P55 later on ? Or it could be i7 920 3845B260 memory controller at play ? Will re-test with W3570 soon