I have a Gigabyte EP45-UD3P Rev 1.1 and I recently bought 4x2GB of the F2-8500CL5D-4GBPK. Before I bought, I read tons of questions about running 8gb at 1066mhz with some people having issues or just wondering if it works. I wanted to post my findings here because there might be others out there that want to use this ram on this motherboard or want to use this amount on this motherboard.
Before the F2-8500CL5D-4GBPK I had 4x1GB Kingston 667mhz (from a my previous motherboard). I had this ram running at 712mhz 5-5-5-15 on 1.8v. I received my F2-8500CL5D-4GBPK sticks today and popped out the Kingston. I put all 4 G.Skill's in and booted up to see what would happen. The Gigabyte was lost in a constant reboot cycle, this was because I didn't set the memory settings to manual before I pulled the Kingston out which means it was trying to run 4x2GB on 1.8v. I pulled 2 sticks out, leaving 2 of the G.Skill in and it booted. I put in the following settings:
CPU Multiplier = 8
FSB = 400
MCH Latch = 400
MCH Multiplier? = 2.66
Memory Voltage = 2.02 (interesting point on this later)
This put my CPU at 3.2GHz and my ram at 1066mhz.
I went into Windows Memory Diagnostic and ran it. It passed 2 tests with no issues. I then booted into Windows and everything loaded fast and fine. I've since run through 2 hours of OCCT Linpack testing without any problem.
A few interesting things that might help out G.Skill tech's:
This memory shows up automatically at 1066mhz with the proper timings and voltage with everything on auto on the UD3P. There is one issue with 4x2gb stick setup. With 2x2gb the automatic voltage is 2.0 and the bios reads it at 2.0, but when you put in 4x2gb it still detects it at 2.0 but the actual voltage drops to 1.9xx (I forget what, might have been 1.96 or so). So there is only memory voltage droop with 4 sticks so I set it to 2.02v (the next step up) and it's currently around 2.015 or so.
I have tried to overclock a bit but I got a bsod while running over 1100mhz in OCCT Linpack. I could probably get up there but I don't really want to mess with the voltages and timings now.
I hope this post helps some people in deciding what they need and how the memory works with this board.
BTW, G.Skill, I think you earned a lifetime customer
Before the F2-8500CL5D-4GBPK I had 4x1GB Kingston 667mhz (from a my previous motherboard). I had this ram running at 712mhz 5-5-5-15 on 1.8v. I received my F2-8500CL5D-4GBPK sticks today and popped out the Kingston. I put all 4 G.Skill's in and booted up to see what would happen. The Gigabyte was lost in a constant reboot cycle, this was because I didn't set the memory settings to manual before I pulled the Kingston out which means it was trying to run 4x2GB on 1.8v. I pulled 2 sticks out, leaving 2 of the G.Skill in and it booted. I put in the following settings:
CPU Multiplier = 8
FSB = 400
MCH Latch = 400
MCH Multiplier? = 2.66
Memory Voltage = 2.02 (interesting point on this later)
This put my CPU at 3.2GHz and my ram at 1066mhz.
I went into Windows Memory Diagnostic and ran it. It passed 2 tests with no issues. I then booted into Windows and everything loaded fast and fine. I've since run through 2 hours of OCCT Linpack testing without any problem.
A few interesting things that might help out G.Skill tech's:
This memory shows up automatically at 1066mhz with the proper timings and voltage with everything on auto on the UD3P. There is one issue with 4x2gb stick setup. With 2x2gb the automatic voltage is 2.0 and the bios reads it at 2.0, but when you put in 4x2gb it still detects it at 2.0 but the actual voltage drops to 1.9xx (I forget what, might have been 1.96 or so). So there is only memory voltage droop with 4 sticks so I set it to 2.02v (the next step up) and it's currently around 2.015 or so.
I have tried to overclock a bit but I got a bsod while running over 1100mhz in OCCT Linpack. I could probably get up there but I don't really want to mess with the voltages and timings now.
I hope this post helps some people in deciding what they need and how the memory works with this board.
BTW, G.Skill, I think you earned a lifetime customer
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