G.Skill FF/Expert/Opty 175 help

[ixtapalapaquetl]

I am having difficulty getting my G.Skill FF's running at rated speeds using my Opteron 175 and Expert board. If you have access to such a combination and have success (or even failure), would you mind posting settings for me to try out? I have been attempting either 297x10 2.5-4-4-8 or 270x11 2.5-3-3-7 for over a week and a half, and can only get stability using 2T. I am, however, prime stable forever at 2T (indicating the CPU is OK at these speeds, right?). It would just be nice to run 1T! Thanks for the help.

[tennvols_69]

try only 1 stick. ive noticed my cpu hates 2x512 modules. it would be nice to see if anyone else is having this problem.

[GSKILL TECH]

try dram level 4 (has 1~15) and 2 (has 1~4) setting
let me know

[ixtapalapaquetl]

OK, I'll try now.

[ixtapalapaquetl]

No luck. Been trying all afternoon 4/2, 4/1, 5,2, 5/1. Many freezes, reboots while priming, several reinstalls of Windows. I have literally tried every combination of data/drive strength at very relaxed or auto tiimings with 4 or 5 BIOSes. In the process, I have come across some pretty convincing evidence that the problem is voltage related.

2.84v at these settings (5/1) crashed before Windows loaded.

2.87v fails:

http://img472.imageshack.us/img472/5791/1mfailat287bios0tv.th.png (http://img472.imageshack.us/my.php?image=1mfailat287bios0tv.png)

2.96v passes:

http://img358.imageshack.us/img358/1505/1mpassat296bios5wo.th.png (http://img358.imageshack.us/my.php?image=1mpassat296bios5wo.png)


So it would seem that my only chance of running at rated speeds would be to exceed recommended voltages! What do you think?

[GSKILL TECH]

do you have any other motherboard to try it?

[ixtapalapaquetl]

Not anymore, but they were working at rated speeds two weeks ago before I changed to the expert. I have another pair of FF's that had been the poorer performing of the two, however. I will try them this evening when I get home and see if they act the same. Anything in particular you would like me to try (other than 4/2)?

[GSKILL TECH]

i have heard some cases that TCCD hard to work on the expert board. i will discuss with Oskar

[ixtapalapaquetl]

Ok, thanks so much. Just tried my other set of FF's. Similar results as before. Running at 2T until you can help!

[GSKILL TECH]

Oskar siad we need to test from dram level 1-1 ~8-4 to see which one is best set for us. everyone might have different level needed

[ixtapalapaquetl]

Um, OK, but forgive me if I say that is not the most helpful advice!!! I do appreciate you taking the time to follow through for me. I guess I will start from scratch and systematically test each setting (again!). I will keep all secondary settings on auto amd my voltage at 2.84.

I really think the problem lies beyond these settings, though. As the screens above show, I get stability when I increase voltage beyone 2.85. What happens after 12 more hours of testing if I still am not stable?

[ixtapalapaquetl]

Update: tested 1/1 through 3/3 last night; 3/4 was at 30 minutes before I left for work. I am using Prime95 custom (500K-4096K, 350MB per core). A couple of them passed 32M, but I haven't found any that can pass Prime95 large FFT's for more than an hour and 15 minutes without erroring or freezing. I will continue testing through 8/4 this evening when I get home through 8/4.

Again, I know it is a 1T problem because I have settings that are prime stable for 8+ hours at 2T.

http://img466.imageshack.us/img466/8921/2970ocdb14ch.png (http://imageshack.us)

[GSKILL TECH]

the last time i can help is advice you to test on another motherboard :(

[ixtapalapaquetl]

Ok. Thanks anyways. Might be time to get some BH-5 anyways.

[GSKILL TECH]

it might be great to run BH-5 on expert board. Oskar is now trying to solve the TCCD on expert board. check it sometime i might able to get some bios for you

[ixtapalapaquetl]

Just wanted to let you know I made some progress! No data/drive combination helped. For kicks I tried 2.5-4-4-10 (using 6/4) and it passed the point where it always failed! Stopped it after 3 hours. Now priming 2.5-4-3-11 with very loose secondary timings. Let's hope...

[ixtapalapaquetl]

I think that solved the problem. Though it only lasted 5 hours, it failed a small fft, so it was probably the CPU, not the RAM. Obviously I hope to tighten things up, but I can live with this for now. Thanks for your help, and let me know if that new BIOS comes around.

http://img235.imageshack.us/img235/3504/progress8la.th.png (http://img235.imageshack.us/my.php?image=progress8la.png)

[GSKILL TECH]

I think that solved the problem. Though it only lasted 5 hours, it failed a small fft, so it was probably the CPU, not the RAM. Obviously I hope to tighten things up, but I can live with this for now. Thanks for your help, and let me know if that new BIOS comes around.

http://img235.imageshack.us/img235/3504/progress8la.th.png (http://img235.imageshack.us/my.php?image=progress8la.png)

hmmmm, you think it is CPU's problem?
i am still talk to Oskar about this and i think he is very busy and not on for few days

[ixtapalapaquetl]

Honestly, I have no idea what the problem is. But I am sure that I can't run Tras at 8. Now I am very stable at 2.5-4-3-11:

http://img406.imageshack.us/img406/3362/1752543111tprime3nu.th.png (http://img406.imageshack.us/my.php?image=1752543111tprime3nu.png)

I am not, however, able to tighten up Trc/Trfc (failed in 50 minutes with 14/16), whcih kind of sucks. I have a 150 coming soon, so I will try the RAM with it to see if it is CPU related. I'll let you know.

[deff_ins]

thanks gentlemans ;) ill test your settings on my system :)
actualy i dont have g.skill :D but corsair tccd - same problems...
on weekend ill test my opty and corsair on my old ultra-d will see... i just dont know can my opty do 300x9 or 300x8...
here some screens with tccd
http://www.xtremesystems.org/forums/showpost.php?p=1172904&postcount=19
and... i cant get above 280 when on my ultra-d with winchester i were able to 305x9 spi32m stable...
ill post my results ;)

[GSKILL TECH]

thanks gentlemans ;) ill test your settings on my system :)
actualy i dont have g.skill :D but corsair tccd - same problems...
on weekend ill test my opty and corsair on my old ultra-d will see... i just dont know can my opty do 300x9 or 300x8...
here some screens with tccd
http://www.xtremesystems.org/forums/showpost.php?p=1172904&postcount=19
and... i cant get above 280 when on my ultra-d with winchester i were able to 305x9 spi32m stable...
ill post my results ;)
i hope you can join G.Skill in futurn :)

[deff_ins]

for now ir seems that dual core opteron memcontroler is diffrent... have not tested on ultra-d... dont know - is it expert or toledo...
need some testing on ultra-d... battlefield is more intresting than overcolcking :D

[deff_ins]

i have run some tests:
opteron 170
corsair 2x512 4400c25 tccd
dfi sli-d (510, 623, 704)
and - no luck - same problems that i had on expert
that means there is no problem with expert but memory controler :slapass:
max stable was 280x9 2.5-4-3-11 2T :doh:

so... next weekend ill run more tests on expert with well known venice 3200 wich can 270x10 or 300x9 2.5-4-3-6 1T rock stable 8)
ill let u know ;)