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XMS2 6400 c4 ram bad? Memtest shows 1 error after 4 hours


Karplak

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Built a system about 2 weeks ago. A few days ago it locked up while I was playing Black and White 2. Tried rebooting and couldn't get into windows, just hung at the loading screen. Safe mode hung up on mup.sys and reset. Was able to do a repair but ended up just reformatting. Now I'm paranoid I have a bad piece of hardware that caused the freeze. Ran memtest86 for about 4 hours yesterday, and right near the end of those 4 hours and on pass 5 or so got a single error. Ran it again today and same thing, only it came on a little earlier today. The settings I've changed in BIOS are:

Set ram v to 2.1

Speed is 4-4-4-12 with recovery at 5

CPU is set to 400 fsb x 8 up from 266 x 8 and voltage is 1.325.

Set to ddr2 800

Besides that I can't think of any settings I've changed. Shouldn't memtest be able to run 24 hours a day with no errors showing? Am I missing anything?

 

Oh and in case it matters, here's the build:

Corsair xms2 pc6400 c4

intel e6400 oc'd to 3.2 ghz

Zalman 9500 cpns

XFX 9750gt

Enermax modular ps

WD 160g SATA 3.0 RAID0

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Changed every setting to exactly what you show for the setup in BIOS and set my cpu back to stock. Everything, afaik, is exactly stock right how it should be. Ran memtest overnight, a total of 21 passes. I had a total of 4 errors in 21 passes. First error was on pass 10, then 15, then 19, then 21. Chan is always 1, tests 2 and 3, the good is just the normal tests and the bad has the same thing only with a 7 somewhere in there. I don't know if any of this means anything to you, just thought I'd ask before I mail them back.
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Before all my parts even got here I had an up to date BIOS floppy, which I loaded and updated before I even setup my raid or installed any OS. And yeah I loaded defaults. I just went to Asus' website and found they have another version out for my board already. I'm going to try to load that up and run memtest again. Assuming I'm still getting the errors, anything else you can think of? With the way the errors went I was wondering if it couldn't be some kind of heat thing. It seems like the first didn't come for awhile, possibly until it had heated up, but then they came more often after that. I think you're correct that this isn't a bad stick or I'd be getting errors a lot more often, I just don't know what else to look for here.
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Loaded the new BIOS and loaded default settings then manually set timings, etc. Ran memtest again and on the 5th pass I got an error. Windows runs fine and I've only ever had that one crash but I can't have it crashing like that again. Any ideas?
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  • Corsair Employees
Did you disable legacy USB when you ran memtest, and did you set the memory frequency at 667 MHz or 800 MHz? I would set it to 667 MHz and over clock the CPU to get the tested frequency for the memory with this MB as its rated at 667 MHz for memory.
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I switched the RAM from a1 and b1 to a2 and b2 and ran memtest overnight and I got 0 errors all night. Either my mobo has a bad a1 or b1 slot or the ram wasn't pushed in all the way. Either way your guys product is clean. Thanks for the help :).
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Well it's looking to almost definately be my MOBO. Had another crash yesterday while just browsing, only this one had a twist. It didn't freeze, but something in my case started ticking really bad. Also, it was like someone was holding down my spacebar while I typed. Cursor just flew in any text field. Rebooted and the mobo couldn't even detect a hard drive in BIOS, much less boot from it. Also the clicking was still present. Unplugged my hard drives for real and the tick was still there, so it wasn't my HD. It's not my power supply. It's definately coming from the mobo itself. Booted with just the essentials and the ticking sometimes stops sometimes doesn't. Started plugging stuff back in and now windows is doing the exact same thing it did last time. Try to boot into windows and it starts loading then resets. Tells me my overclocking failed, even though CPU is set to defaults and RAM is set to what you guys told me to set it to. Also, I'm still getting intermittent "bootable device not found" errors even though everything is hooked up. What else could it be but a really screwed up mobo?
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