Memory Errors?

Time to test individual sticks.

Try each stick for a while in first RAM slot. If none error out, try them all in the next slot and so on.

Could be that only one stick is faulty or the motherboard itself could be faulty.

If possible grab some RAM off a mate and test it in your board for a bit. Might help rule out your RAM being an issue. Last thing you want to do is shell out for more RAM to find it was something else!
 
At the moment I've removed the overclock from the system, running everything at default apart from memory and CPU voltage. CPU voltage is at 1.3 because I don't have the foggiest what the stock voltage was, and its been running at 1.4v fine, so 1.3 seemed like it would be easily enough.
Ram voltage I kept at 2.1V because that's where it was stable. Also, interestingly, now the cpu is back at stock speeds, the ram's defaulted back to 5-5-5-18 timings.
Anyway, that's been going 2 1/2 hours without errors, but I'll run it all day, and then beings the long arduous task of testing all the sticks :x

Funny thing was, a couple of weeks I was asking if I should chuck my system out and move up to one of the fancy AMD six core CPUs because mine was getting a little sluggish, and was advised to wait until their new CPUs in the new year, which made sense. But with all this going on, part of me wants to say 'screw it' and splash out now :x
 
Get a "cheap" i7 system while you wait :p

When you're getting memeory/stability errors it is always a good idea to get rid of any kind of overclock and put everything at stock speeds.

If you can go all day without issue it could well be your CPU overclock wasn't playing nice - though will be worth running an IntelBurnTest or similar if errors do show up again.

I went through something similar last year with someone. Turned out to be their motherboard in the end. That involved hours of testing RAM and CPU :p
 
Thing is, the cheapest i7 cpu is £55 more than AMDs hex core, both running at 2.8Ghz. Plus, Bulldozer should work in AM3 800 chipset motherboards, so I would have a viabl upgrade path, whereas I believe Intel's next range of CPUs will require new everything?

As for the CPU Overclock, I don't think that could be the issue, its been running those speeds for close to three years now with no issue. But I'm three hours into another memtest with no issues so far.
Then again, Its passed memtests before without showing issues, so I don't know. That's partly why I want to get shot of it, but main problem with selling it is that I'd have to mention this issue when I sell it, which I would imagine will decrease the value of it.
Unless I ebay it and deny everything!
 
24 hours on the default clocks and everything passed ok. Even so, I'm going to give the stick that was throwing up errors another 24 hours on its own, so that just it gets stressed, should mean more passes on it.

Its weird, my overclock's been stable for years, weird that its gone now. Guess I'll have to lower it a bit, even though my CPU temps have always been fine.


Actually, having said that, cpu temps were never the issue when I was originally overclocking it, the northbridge couldn't handle it. Could the fact I changed from a 4850 to a 5770 graphics card have done it, since the card is rather close to the northbridge? Slightly more heat kicked out means its overheating now its summer?
 
CPUs age. Even ones always at stock will eventually clap out. Being OCd just speeds the process up.

Having said that, less stress on the CPU usually means less stress on the motherboard as well, so you still haven't ruled out either! :p
 
Ah, good point. How's best to rule out the motherboard? I don't have any spare CPUs or RAM lying around to switch them around, and when I do test it, should I be running at stock speeds or overclocked?
 
Ideally you need spare stuff. When I helped my friend they had access to another computer to dismantle lol.

To be honest the motherboard is probably a long shot - I'd be more inclined to say it was the CPU.
 
I've just been reminded of one thing, though. In fact, its been happening for a little while but I completely forgot about it. Sometimes, on starting up I get the message: CPU Fan error during POST. Now, the fan's correctly plugged in and spinning, and switching the PC off and on again got rid of the error. But it happened just now after I finished testing the single stick on its own (9 passes all ok). I was planning on restoring the overclock, and then stressing for a few hours with prime95 or something, and keeping an eye on it, but after 4 attempted restarts and getting the 'cpu fan error' it makes me think maybe the mobo is at fault?

Also, if it was the CPU at fault, why would that make it fail during memtest? Its not exactly being stressed by that, is it?
 
Well if the CPU is faulty it will screw up calculations or dump data to the wrong memory address.

A component doesn't need to be stressed to cause faults.
 
True. Any ideas on the CPU fan error?

Anyway, running OCCT to stress it now. Will give that a couple of hours, see if anything breaks. I'm running back at my original overclock, memory being set automatically.

Edit: An hour on OCCT and nothing. Highest it got was 50C. But then again, its been raining all day, not hot hot sun.
Also, noticed that the cpu mutiplier is jumping between 8.5 and 9x. Guess I hit the speedstep button sometime >_>

occtq.jpg
 
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Larga data set should stress both the CPU and RAM. 4 hours, no errors :x

I'll wait for another hot day, run it again, but as it stands I think I'm just going to sell it on and get a new system anyway. SupCom 8 player huge maps aren't really playable anyway XD
 
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