P5Q pro Turbo and F2-8500CL5D-4GBPK

[Varroa]

Hi, I am having a few issues with timings on these sticks and I want to make sure I am not missing anything. I am running 4x2GB sticks of F2-8500CL5D-4GBPK and I was getting failures in memtest until I bumped my tRFC up to 70 clocks. I am not getting anymore errors but is there anything else I should be doing?

Asus PrQ pro Turbo
Bios 0602 (newest)
F2-8500CL5D-4GBPK at 850Mhz

Timings manually set in bios to 5, 5, 5, 15, 70 2t at 2.1Volts

Thanks

[Tradesman]

If it's stable then all should be good, if you'd like to run at at 1066 (the sticks native speed) you might have to adjust the tRFC a little higher, possibly add a bit of voltage to the NB and would need to know what CPU and FSB you are running or want to run to help any further.

[Varroa]

Thanks. I am running a Q9550 at 3.6Ghz do far. I already had to bump up the NB voltage a tad since I am running a quad and 4 sticks of ram. Thanks for confirming everything.

[Tradesman]

Sounds sweet, Enjoy!

[Varroa]

More issues

Hey Guys, looks like I am still having some issues with these sticks. After a long and drawn out process of elimination, I finally come to the conclusion that having 4 sticks of ram on this board with 2 SSDs and a quad core can cause data corruption on my SSDs. If I run just two sticks I am fine but as soon as I use the 4 sticks (with the timings I mentioned above, NB voltage from stock -1.4, stock speed on the quad) I run the chance of getting data corruption on my SSDs. It doesn't occur with my single HDD either, only the SSDs. I know it is some weird combination of issues between the memory and the NB but I can't put my finger on it. Any suggestions? The SSD forums are at a loss as to explain it as well. This occurs with several different SSDs (OCZ, intel, different sizes and models) and even with two motherboards (both P5Q pro turbos). Any suggestions?

[GSKILL TECH]

Increase the SB Voltage +0.2V.

Thank you
GSKILL TECH

[Varroa]

Doesn't help

I have tried higher SB voltages as well and that doesn't solve the problem. What I am going to try next is bumping the tRFC higher to 80ish and see if that helps. What effect does raising tRFC have on speeds?

[GSKILL TECH]

None, it helps stabilize the memory if not enough time is given to refresh.

Thank you
GSKILL TECH

[Varroa]

Well, after a year I finally figured out the problem (LOL). It is what I suspected, the board was overloaded with to many things. I removed my physX card and a TV tuner can and now the ram works perfectly. Just thought I would update this thread incase somebody has the same problem.

[GSKILL TECH]

Thanks for the update. Great persistence you have.

Thank you
GSKILL TECH

[Varroa]

Well we will see, I forgot about the data corruption so I will check when I get home.

[Tradesman]

Let us know, you've got more patience than I do

[Varroa]

So far so good

So far so good, no signs of corruption. Looks like it was too many things on the board. Thanks again for the help.

[Tradesman]

No problem, stay in touch