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qwerty69

Desperately need help to stabilise my Stock X2 4400

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in my case of hoping to get dual prime(large ffts) stability at stock cpu speed, the patch does not help. :o

[quote name='LanceDiamond']The "AMD dual core driver" that you guys are talking about, is that the one here:

[url="http://www.amd.com/us-en/assets/content_type/utilities/amdcpu.exe"]http://www.amd.com/us-en/assets/content_ty...ties/amdcpu.exe[/url]

Because if so, this shouldn't be required for anything, ever. It's an ACPI driver that lets the OS monkey with the power requirements of the CPU, shut down a core maybe, etc.

Unless you're plugged into a battery or you have horrible heat problems, I can't imagine why you'd want ACPI even enabled on any non-laptop. I paid full price for this CPU and damnit, I want it working full time! :P

This driver would have nothing to do with Windows XP seeing 2 CPUs and shouldn't have anything to do with stability unless it just happens that when ACPI kicks in and slows your processor down it becomes stable at the slower speed.

If there is another driver y'all are talking about, please do correct me! :)[/quote]

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hmm in my device manager, the CPU is indicated as ACPI Multiprocessor. Is this correct?

I do see and get dual core in task manager and is able to set affinity even when using SP1.

[quote name='LanceDiamond']Reason for that driver causing XP to recognize X2 would be that it must kick the OS into re-recognizing the CPU and getting the MP (multi-processor) HAL in place. There is a Microsoft KB article someplace about how to do that manually, may involve device manager or something like that. But apparently installing the ACPI stuff kicks the OS too, good to know I guess.

99% chance you remove that ACPI driver - and XP will still recognize you have 2 processors... ;)[/quote]

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yes after flashing bios, i did clear bios and load optimised defaults.

In fact when i started working on the system today, it wouldn't even boot up for some unknown reasons.

I have to use the no boot clear cmos suggestion suggested somewhere in this forums to boot up this thing.

So i should have clear cmos and load optimised defaults at least twice.

[quote name='exodushunter']Did you load optimised defualts when you reflashed the bios or clear it after flashing??[/quote]

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I read from another user from another forum that he has nearly the same problem as mine. However when he underclock his CPU from 2200mhz to 2100mhz or lesser, he gets 100% stability.

I'm going to try this tomorrow. If this is correct in my case, should i be looking for a RMA on the CPU?

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Hey another thing to try, based on your description of the memory problem.

[url="http://www.hcidesign.com/memtest/"]http://www.hcidesign.com/memtest/[/url]

this is a Windows memory tester. I say try this because I passed hours of BIOS memtest86 at 282FSB on my memory - but failed in minutes on this thing. I had problems.

Way I set mine up was to run 2 instances of the app once installed, set each to test half the memory, click ok a few times and in < 30min it can test 1800mb of memory (I set each to test 900mb.) I was able to find that I had problems at 282 but did NOT have problems at 260 with this test, pretty quickly. I then prime95'd for 21 hours, no problem.

You might try this test with just one stick in, then swap and same test same setup with the other stick. If it fails on one but not the other, bad stick of memory. If it fails on both, memory timings or both sticks bad (I can't see that) or something else MB related maybe... In any case, this is a fairly short test 20min a stick or less I think.

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thanks Lance. I will try this later today. :)

What i'm doing now is i have removed the /uespmtimer switch from boot.ini.

It seems to be giving me a little more stability and i pray it will continue haha. Prior to this, running dual Prime(large ffts) will give an error within 5 mins but i'm ok now at 15 mins. Let's hope this will continue to run good for a few more hours.

May i know whether you have installed the AMD Driver as suggested in this post?
[url="http://www.dfi-street.com/forum/showthread.php?t=26437"]http://www.dfi-street.com/forum/showthread.php?t=26437[/url]

I did but it does not seems to do anything. Just wondering if this is required at all?


[quote name='LanceDiamond']Hey another thing to try, based on your description of the memory problem.

[url="http://www.hcidesign.com/memtest/"]http://www.hcidesign.com/memtest/[/url]

this is a Windows memory tester. I say try this because I passed hours of BIOS memtest86 at 282FSB on my memory - but failed in minutes on this thing. I had problems.

Way I set mine up was to run 2 instances of the app once installed, set each to test half the memory, click ok a few times and in < 30min it can test 1800mb of memory (I set each to test 900mb.) I was able to find that I had problems at 282 but did NOT have problems at 260 with this test, pretty quickly. I then prime95'd for 21 hours, no problem.

You might try this test with just one stick in, then swap and same test same setup with the other stick. If it fails on one but not the other, bad stick of memory. If it fails on both, memory timings or both sticks bad (I can't see that) or something else MB related maybe... In any case, this is a fairly short test 20min a stick or less I think.[/quote]

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No, you don't need the hotfix nor amd driver as I have said. Try that HCI memtest, it sounds as though you have a ram issue, possibly one bad stick. I assume you have all 4 power connectors properly plugged into the mobo?

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Thanks JiminyC for the clarification. I will not install the hotfix and driver when my system is all OK. :)

I have actually flashed to 704-2BTA or whatever the name is. This bios seems to be much less picky and i'm able to run stable for over 7hrs(dual prime large ffts) at stock speeds using the start-up settings suggested in the stickys.

Overclocking now but stuck at 2700mhz... :)

Thanks guys for all the help given to a dfi newbie!!


[quote name='JiminyC']No, you don't need the hotfix nor amd driver as I have said. Try that HCI memtest, it sounds as though you have a ram issue, possibly one bad stick. I assume you have all 4 power connectors properly plugged into the mobo?[/quote]

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2700 is about where I got to - beyond 2700, even 2708 or so, would eventually show problems - reboot, lock, bluescreen - after a long prime run - once I think 6+ hours til a hard lock running prime95. I went as high at 1.7v and found no luck at 2750 so I'm at 2600 @ 1.5v and quite happy, stable and cool (45c typical load temp.)

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