x2 3800---puzzeling results

[songokussm]

I am getting very wierd results with my x2 3800. Its a manchester core, rev BH-E4. I am trying to overclock the little space heater and it is perplexing me. I can pass testing on one core but on the other. In superpi, and prime95 Core 0 will not pass, while core 1 can run for hours. Also even at stock settings i can not get prime 95 to pass the memory test on core 0. however overclocked at-
HTT@3x
FSB@245
Multi@10
vcore@1.5
mem@245 (1:1)
3-5-5-10 (geil) @2.7v

both core pass with flying colors.......totally confused

 

[EffeX]

Try bumping the vdimm to 2.8v.

 

[robertk2012]

Probably one of you automatic settings is causing some instability. leave your HT multiplier at 3 and use stock settings except for your ram. 1:2 divider and see if it passes prime then.

 

[songokussm]

@EffeX
with the geil memory i found its max is 293. i reached that at 2.6. when at 2.8. its max was much lower 250ish. i didnt record it.

@robertk2012
I found the issue. the vcore was to high. My bios automatically set it to 1.4, so i set it to 1.3 and everything is passing just fine. interesting.

any other advice?

PS we are currently at a fsb of 230 @ 1.3v and everything is passing.

 

[robertk2012]

Originally posted by: songokussm
@EffeX
with the geil memory i found its max is 293. i reached that at 2.6. when at 2.8. its max was much lower 250ish. i didnt record it.

@robertk2012
I found the issue. the vcore was to high. My bios automatically set it to 1.4, so i set it to 1.3 and everything is passing just fine. interesting.

any other advice?

PS we are currently at a fsb of 230 @ 1.3v and everything is passing.

1.4 is fine for the vcore and shouldnt be causing any problems

you said it would pass at stock speeds correct? If so shouldnt that be what you are testing at. I wouldnt worry to much though as long as its prime stable while overclocked.

 

[songokussm]

when at stock @1.4v prime wouldnt pass (first test). @1.3v it does pass. thats why its confusing. Its currently stable at 2400, so ill stick with now. since its brandnew i may just send it back and go with an am2 system.

 

[robertk2012]

Originally posted by: songokussm
when at stock @1.4v prime wouldnt pass (first test). @1.3v it does pass. thats why its confusing. Its currently stable at 2400, so ill stick with now. since its brandnew i may just send it back and go with an am2 system.

Like I said I wouldnt to much about it if your stable at 2400 @1.3. I bet you have a lot of headroom left.

 

[EffeX]

Well im glad you got it fixed, I wasnt sure if those GeiL sticks were rated at 2.8v or not.

 

[songokussm]

meh, i thought i was going crazy or something. having core 0 fail everything and having core 1 pass everything. Thanks for letting me know im not. Now before i close the thread, i bought a 2gb stick of ram as well (1gbx2) and i can't tell a difference in anything (gamming, encoding, standard computer use) compared to the 1gb's. any idea why?

 

[robertk2012]

Originally posted by: songokussm
meh, i thought i was going crazy or something. having core 0 fail everything and having core 1 pass everything. Thanks for letting me know im not. Now before i close the thread, i bought a 2gb stick of ram as well (1gbx2) and i can't tell a difference in anything (gamming, encoding, standard computer use) compared to the 1gb's. any idea why?

What kind of video card do you have? Most likely unless its a very high end card and you are playing demanding game you wont ever notice the difference. 2 gb is good for multitasking but a bit overkill for the average user.

 

[robertk2012]

also how long are you letting it prime for?

 

[Amaroque]

Originally posted by: robertk2012

Originally posted by: songokussm
@EffeX
with the geil memory i found its max is 293. i reached that at 2.6. when at 2.8. its max was much lower 250ish. i didnt record it.

@robertk2012
I found the issue. the vcore was to high. My bios automatically set it to 1.4, so i set it to 1.3 and everything is passing just fine. interesting.

any other advice?

PS we are currently at a fsb of 230 @ 1.3v and everything is passing.

1.4 is fine for the vcore and shouldnt be causing any problems

FYI: 1.4 Vcore will cause problems if there is any thermal issues.

 

[skooma]

Yeah, 1.4v should be fine.

BTW, have you flashed your bios? something sounds weird passing at 1.3v and failing at 1.4v

 

[songokussm]

i know! its very confusing!
I have updated my bios to the most current. My video card is the x850XT. I Let it prime for 5 minutes on all 3 tests on both cores at the same time. If it passes that, then the time bumps up to 30 minutes.
--
I asked about the 2gb sticks for two reason. One i think something is wrong with this chip. Two, i dont think this chip is proforming how it should. I have two systems. This one replaced my 3000+ oc'ed to 2.3. and an FX-57. The fx i can tell the difference, but when compared to the 3000, i cant. the same fps, the same encoding times. Even similar benchmarks...... And to make matters worst, even at stock speeds or overclocked, when i very heavlily stress the system (game/encoding) i get an "stack_error_unknown"....wtf?

---adding psu-----
maybe its the new psu i just bought
http://www.newegg.com/Product/Product.asp?Item=N82E16817341002

 

[robertk2012]

1.4 is NOT causing any problems. Prime stable is min 12 hours and I use 24 for my own use. You never said what games you are using. Most newer games especially with that video card you have will be gpu limited i.e. you could crank the cpu up 4 ghz and it wouldnt make a difference. Even with a top end card 2.4 is about the point where you stop seeing improvement in most games.

What kind of encoding are you doing?

 

[songokussm]

for encoding i use adobe preiemer and virutaldubmod. My times are relating to the total process time of each process. meaning from recording from vcr to computer. Encoding from vcr format to dvd format. Along with a step in bettween for clarity.

also, in my experiances with prime95 only using the 3rd test option, doesnt catch everything. So i run all 3. And i have never found that when something didnt pass the 3 minute test, fail to pass the 12 hour test.

 

[robertk2012]

I have overclocks fail penty of times at 2-10 hours in. I always run the Small FFTs and IN-place large FFts each for around 24 hours before I call something stable.

 

[TrevorRC]

Originally posted by: songokussm
meh, i thought i was going crazy or something. having core 0 fail everything and having core 1 pass everything. Thanks for letting me know im not. Now before i close the thread, i bought a 2gb stick of ram as well (1gbx2) and i can't tell a difference in anything (gamming, encoding, standard computer use) compared to the 1gb's. any idea why?

Go to System, Advanced, Virtual Mem settings, Advanced, Virtual Mem-Change, set it to 0.

With no virtual memory, everything will be loaded onto the RAM--that'll speed things up considerably.

Also, unless you utilize over 1GB on a regular basis [As in.. FEAR, BF2, etc.] it won't make too much of a difference.