VX and memtest errors.

[Chr0n1c]

Im trying to "burn" this ram in but it gets memtest errors @ 2-3-3-8 with 2.6V thru 3V :confused:

It's a brand new kit. We're looking @ 10+ errors here. Is this typical for a kit thats brand new?

Some advice is welcome.

220Mhz w/ 3.2V @ 22251T also gives me errors.

Using 1/25 Bios (the ones that it shipped with) on the DFI Ultra D
A64 3000+ winchester
Fortron source 530W PSU.

[bachus_anonym]

well, u see this seems to be the wierdest memeory I've ever had....

mine generates errors at DDR400 8-3-3-2.0 but once I switch to 3.2v and DDR400 6-2-2-2.0 errors go away...
just play with it - rotate it in dimm slots, raise vdimm do 3.3v and go from there.... this RAM seems to have it's optimum within 3.3-3.6v range.

[Chr0n1c]

I've rotated the dimm slots. I'll try as u have suggested.

[Chr0n1c]

UPDATE:

I was just an impatient dummy. :D

Left it in a overnight burn in @ 235Mhz w/3.4V and now its passing loop 78 in memtest (test5) @ 250 22261T w/ 3.4V.

Very pleased now.

Excellent product, I was just stupid. Sorry. :p:

[RyderOCZ]

You did great Chr0n1c, we get a lot of emails regarding this and that's exactly what you have to do....it takes a little bit for the memory to get "smart" for lack of a better term. :)

Glad you got it working and very well it seems too.

Thanks

[Chr0n1c]

Thx Ryder. I will def be sure to spread the word :D

[RyderOCZ]

BTW, Tony (BigToe) posted some screenie's of A64 tweaker settings with the DFI Ultra NF4 and the VX memory. The first post is with a NewCastle, the second is with a Winnie. They are located here:
http://www.bleedinedge.com/forum/showthread.php?t=7596

Just in case you didn't find his thread here at Xtreme, which is here:
http://www.xtremesystems.org/forums/showthread.php?t=50421&page=1

[Chr0n1c]

Hey thx man,

250 does ~150 some odd passes @ 22261T w/ 3.4V in test 5 but then fails pifast. :(

Guess memtest isn't too stressful. :confused:

[Torin]

Maybe your mem O/C is ok but your CPU O/C needs some work.

[Chr0n1c]

I think the whole timings just needs work, ram just seems so diff from any other LL ram I have had. And I know for a fact my chip is 100% solid @ 2.7Ghz 1.69V.

I just tried a diff dim arrangement and it seems a bit better. lol.

[bachus_anonym]

Hey thx man,

250 does ~150 some odd passes @ 22261T w/ 3.4V in test 5 but then fails pifast. :(

Guess memtest isn't too stressful. :confused:
This is my experience as I've had three kits of VX...

1. Put first stick in. Set your vdimm to say 3.4v in BIOS.
2. If it does well say at DDR480 (240Mhz) in memtest #5 for about 15min, then shut it down and swap sticks.
3. Don't change anything. See if that second stick passes same speed as above.
4. If it does then this is the least what you're going to have stable in Windows.
5. Go to step 1 and raise by 5Mhz
6. If first stick passes but second stick fails (or second passes but first fails)then go to step 7.

7. Put both sticks in same ordere - first one in dimm1 and second one in dimm2.
8. At that 245Mhz and 3.4v you might have a weird thing happening that both sticks run at 245 :confused: But once you hit Windows nothing is stable there: Prime95 fails, SuperPi 16M fails to, for instance...
9. By raising voltage you could be stable in memtest even higher but Windows will tell you NO. Then you'd be stuck at that 240 even though memtest passes say 255 or 265 with more voltage...

That scenario happened to me once.... That's why I think that VX has some weirdness in it...

[Chr0n1c]

:( Well man you helped me discover my problem.

1 Stick isn't as good as the other :( It errors @ 238 @ 22251T w/ 3.4V

while the other doesn't @ all till the 258+Mhz range. So one is great the other isn't.

Still makes no sense to me why with the good stick in the right dimm will make them pass memtest86 together. But when I swap them I get errors. :stick: Perhaps I was doing something wrong @ the time of the 250 Testing. :shrug:

When you look closely at the bottom of the "bad" stick it has a lil knick in the PCB (the part that goes into the MB) could that be it?

Either way it looks like I will be RMA'ing these back to the egg. Or should I do it thru OCZ?

I appreciate everyones help. Def want to get a good kit of this stuff. :D

[Chr0n1c]

Kept getting worse, very bizzare. Maybe I messed with them too much idk. But it keeps getting errors with all my programs.

I am RMA'ing them tomo back to the egg. Need to get this sorted out and get a good kit.

[RyderOCZ]

Chr0n1c...put them into the board and leave it overnight again at 250FSB 2-2-2-6 1T with the 3.4V...let it read errors whatever.....just let it run for 6-8 hours str8...I think you will be fine.....once that's done you should be able to lower the voltage and still run 250 2-2-2 at about 3.2V

Are you putting a fan on the dimms? A lot of this sounds heat related. We definitely recommend (STRONGLY) that you have a fan on the dimms.

[Chr0n1c]

I set em up to do that about an hour or so ago in a last effort thing. I have a high speed case fan on them, had it on it since I first put them in. I'm gonna let it run straight thru into tomo afternoon and see where it gets me.

I really appreciate your patience with me. :)

[Chr0n1c]

Well I have to send this ram back, in exchange for another set. I def wnat this ram just a kit that is stable.

Here's what its doing now:

I ran a memtest overnight for over 11hrs. It did something like 980 loops when I checked it. Restarted the computer and tested it out in windows.

250 - Windows based memtest errors and super pi errors.
245 - Same thing
240 - While it can now finish some pi's it fails windows memtest

Below 240 is where it starts geting stable. I tried all the voltages for em. Just gonna have to RMA to newegg and get another kit of the same ram.

Thx for all your help.

[Charloz24]

I don'r know why you will RMA the kit if it's stable below 240. The ram is rated 2-2-2-x at 200mhz ......

[Chr0n1c]

b/c I have higher expectations..especially when a vast majority are above the 240 mark.

[Charloz24]

Why don't you just put them on e-bay then? It's not OCZ fault if the memory doesn't meet your expectations. Do you know many people that RMA their winnie because it can't do 2600 mhz?

[Chr0n1c]

What are you bored or something? Just drop it they are gone already and yes infact I do know ppl who do that. :rolleyes: i'm not degrading OCZ's name in any fashion I have their other products and they are perfect. I just wasn't happy with having 1 stick do 258 and the other 238. K? let the issue die.

Go argue something worth arguing. :stick: