In 2009 I bought a Gigabyte GA-EP45-UD3R Rev 1.1 motherboard and G.Skill F2-8500CL5D-2GBPK to build a computer to run XP 32 bit. In 2011 I upgraded to windows 7 64 bit and purchased F2-8500CL5D-4GBPK to increase the RAM to 6 Gig in the computer. I updated the BIOS to F12 and tried all the setting I could find in the G.Skill forum and everywhere else to get both sets of RAM to run together at 1066 but nothing worked. Gave up and just ran F2-8500CL5D-4GBPK by itself at 1066 with no issues. The other day I ran across a thread of someone who had the same problem getting all 4 sticks to run at 1066 but was able to get 4 sticks to run at 800Mhz with 4-4-4-12 timings so the speed is almost equivalent. I was able to have the same success and am now running all 4 sticks at 800MHz with 4-4-4-12 timing.
My question is about voltage because the memory is running at 800 MHz (not 1066) should I lower the DRAM voltage to 1.8 or 1.9 Volts? (currently DRAM is set at 2.02V)
CPU Host Freq 333MHz (core 2 DUO Dual Core E8400)
Performance Enhance – Standard
Extreme memory profile Disabled
System Multiplier 2.40B (2.4*333=800)
DRAM timing Selectable – Manual
CAS Latency – 4
tRCD – 4
tRP – 4
tRAS - 12
Command Rate – Auto
MCH Core - 1.16 Volts
tRRD – 3
tWTR – 4
tWR – 5
tRFC – 52
t RTP – 3
Do you think I could lower the tRFC value anymore?
If I run Memory Test 86+ for one pass with no issues does that mean I will not have any issues in Windows?
I know both sets of RAM are good because they have run independently of each other for 2 years or more with no issues. Perhaps it is because they are not matched sets? Could I send these two RAM sets in to be exchanged for a matched set of 4 sticks? Would there be a charge?
My question is about voltage because the memory is running at 800 MHz (not 1066) should I lower the DRAM voltage to 1.8 or 1.9 Volts? (currently DRAM is set at 2.02V)
CPU Host Freq 333MHz (core 2 DUO Dual Core E8400)
Performance Enhance – Standard
Extreme memory profile Disabled
System Multiplier 2.40B (2.4*333=800)
DRAM timing Selectable – Manual
CAS Latency – 4
tRCD – 4
tRP – 4
tRAS - 12
Command Rate – Auto
MCH Core - 1.16 Volts
tRRD – 3
tWTR – 4
tWR – 5
tRFC – 52
t RTP – 3
Do you think I could lower the tRFC value anymore?
If I run Memory Test 86+ for one pass with no issues does that mean I will not have any issues in Windows?
I know both sets of RAM are good because they have run independently of each other for 2 years or more with no issues. Perhaps it is because they are not matched sets? Could I send these two RAM sets in to be exchanged for a matched set of 4 sticks? Would there be a charge?
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