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Surely all the memory controller does is make sure the memory is read or written correctly, so memtest will thrash it more as it is spending all its time reading and writing to memory. Anything doing calculations will thrash it less as they are spending time doing the calculations and the data will be in the cache a lot of the time.
BTW this bootable CD for Prime95 worked really well, I had the same results as in Windows so it's not an issue with drivers etc.
Crunchy try one stick of memory at a time and see if it works.
hmm, Mine passes prime if it's stable and it doesn't if it is not
lol, well thats how prime95 works.
My new 0441 Winch passes prime overnight, but once I start using it with Prime in the background it freezes :) Bump vcore 0.025V more and all is good.
n0w4i4: sorry for the confusion. Let me try to explain. As andy said the memory controller handles all the movement of the data in the memory. But the cpu itself is not being stressed which makes it easier on the memory controller. Like my memory controlller works at higher speeds when my cpu is at lower clocks. when i turn up the mhz on the cpu the memory controller dumps.
So if the cpu is unloaded the memory controller will be able to do its job better.. and with less errors. Thats all it is.
Does that make sense?
I also have a week 37 retail winny and it fails prime95. I tested after clearing my CMOS and booting into a fresh install of windows and runnin p95 and it failed. My system also freezes if i try to run any liveCD for linux (installers, knoppix, etc) and even some dos based tools like data lifeguard for WD HD's.
I talked to amd tech about the freezing like a month ago and they said it was most likely a motherboard or ram problem, but i tryed a friends NewCastle and it worked fine. :stick:
aonic
RMA the chip. I bet you'll get some 0447 or even later that will O/C to at least 2.7 GHz :D
Please excuse for my lazyness, but i'm don't have the nerves to read 16+ pages.
Can someone give me a short summery of what's going on? :)
Thank you very much :D
another, related question....
I have an OEM 3500 week 37 here....NOT tested since i am still waiting for a nforce 4 board. the 60 day warranty run out a few days ago. I KNOW.
So what do i do once i see it would fail prime or any apps at stock ?
People say they cant even run Linux installs/kernel compiles etc....so..in IOTHER WORDS: The CPU is f****g broken if it doesnt do basic things under stock speeds !
I cannot RMA an OEM CPU where the warranty ran out (AFAIK !) - so the only option would be ebay to some poor soul ?
What rights do i have when i paid $315 for a CPU which would turn out defective ????? Btw. i bought from monarch. I also asked them after i got the CPU if it is possible to purchase longer warranty afterwards - but they said i cant.
Do i have ANY way to pressure either the retailer or AMD (well..its defective CPU, duh !) in case this CPU turns out a dud ? Need some help here..i would even go so far and write to AMD etc....AFAIK the programmer of P95 already claimed there is nothing wrong with P95 !
>>So what do i do once i see it would fail prime or any apps at stock ?
Swear and buy a retail cpu with 3yr warranty next time for $10 more
Ya, I am going to RMA when the busy shipment season is over :)
Some Winchester 939 90nm CPU's fail Prime95 Blend Test at stock 200fsb speeds, using relaxed chipset timing and RAM timings. These are mostly week 37 models.Quote:
Originally Posted by Swing
If you need to know more read inly the important looking posts. :)
Been doing some Testing on my systems and getting some wierd results...
All was tested on my MSI K8N Neo2 Plat with 1.3 Bios. system is water cooled.
all testing done with Prime95 Ver 23.8
Winchester Core (week 0441)
Passes at 260x10 with my Gskill Tccd 2x256Mb
Fails Prime at stock settings with My Ocz PC3700 Gold Rev3 2x512Mb
Newcastle Core (week 0427)
Fails Prime with and FSB over 220 FSB with My Gskill Tccd 2x256mb
Presently Passing at 237x11 with my Ocz Pc3700 Gold Rev3 2x512Mb
hag6br
Ah.. 2 memory banks workie, 4 memory banks NO workie. Newcastle - why are ya testing it? Just test stock..
Pass WHEN?
Fail WHEN?
Look people, there is no 8 hour magic mark on Prime95.
If your system (mobo, memory, cpu, psu, something else) is unstable, it is more than likely unstable at non-predictable times and not all the time.
This means that there is NO single test turn (esp. only 8 hours long) that can prove your system is 100% stable.
If your system does not fail in two hours, is it stable? Perhaps, but not guaranteed.
If it does not fail in 8 hours, is it still not a 100% guarantee of stability.
If you really want to be sure, run it for at least 3-5 times 12 hours each at different times of day with different loads on the computer and your electricity grid.
The more you run and the less you crash, the higher the likelihood of real system stability.
It's not an ON/OFF feature where your system either is fully unstable or fully stable.
regards,
halcyon
Only reason I tested the Newcastle is that it is a new chip I just picked up and I was seeing how well it overclocked..Quote:
Originally Posted by IvanAndreevich
:cool:
There you go. More evidence of the issue.Quote:
Originally Posted by aonic
Are you all having trouble with only week 37 cpus? Or all CPUs before a certain time? Or is is just random?
I have a 0412 NC and an 0431 Winnie both work just fine so I am just curious.
It's more of a random thing. Not all week 37 CPUs fail and not ane we are not sure what other weeks might be affected.
Anyone tried using the floppy version of Prime95? Just to see.
Download available here.
anyone have any ideas of what i can say to make the amd tech's believe that the cpu is the problem so they let me go through with the RMA?
aonic
You can hmm.. lie? It's your karma :p
DoGMaN
People have tried it to no effect AFAIR
give me some suggestions on what to say :pQuote:
Originally Posted by IvanAndreevich
Ive never RMA'd before lol
you have a boxed retail CPU ? If YES, consider yourself a lucky focker :)Quote:
Originally Posted by aonic
I think unable to run Prime at stock and Linux and whatever should be enough to RMA a retail CPU. (3 years warranty, thjats what is FOR).
In comparison i am REALLY screwed since i got an OEM CPU (with warranty already gone.) If it turns out this CPUI is a piece of :banana::banana::banana::banana:e i cant do ANYTHING than ebaying it and hope the new seller doesnt know about Prime,
There is no way in hell AMD exchanges my OEM CPU (even if 'proven' defective, eg. unable to run some apps at stock)...and there is no way i can get an exchange from monarch. (I even asked them a few weeks ago if i can purchase a longer warranty, they denied my request. I still am unable to even test this CPU lack of parts/motherboard etc.).
In case it turns out my CPU is defective i could have even taken the $315 i paid for it, put it in the toilet and flush it down.
I know i was a fool not to purchase a 6 month or so warranty....but the problem was that i did NOT expect to get the CPU and then being unable to test it for the 60 day warranty period i had. I thought 60 days should be fine and i should get my board and everything. I was wrong. Besides the CPU was expensive enough so i didnt want to pay more for extended warranty.
Still...this is an odd situation.