Wow, you guys are awesome

[profJim]

Re: Wow, you guys are awesome

Google search using 0xc000021a has many links to possible solutions.
Let us know if this helps after you've become an 0xc000021a expert.
**edit** Be proud and terrified.

[wallypiper]

[profJim]

this post often eliminates problems with systems running at stock speeds.
I strongly recommend that you manually change the listed settings in the post to the values displayed in your bios to the left of the [Auto] column.
MCH Core and Dram Voltage usually have to be manually set based on how much memory you are using.
The cpu-z SPD shows that 2.10 volts is required to run your memory at 1066 speeds. ET6 shows that the bios has automatically set Dram Voltage to on 1.86 volts. This might be a cause of your BSOD.

Even with a brand new motherboard or other new hardware, extended stress/stability testing should be run to ensure that there are no hardware problems than can lead to system problems, such as BSODs, crashes, freezing or data/file corruption.

[Chike]

Re: Wow, you guys are awesome

The cpu-z SPD shows that 2.10 volts is required to run your memory at 1066 speeds. ET6 shows that the bios has automatically set Dram Voltage to on 1.86 volts. This might be a cause of your BSOD.

Nah, BIOS never set DRAM Voltage 1.86v automatically, this is set manually.

[profJim]

Re: Wow, you guys are awesome

DRAM Voltage ……....1.800V............: 1.86

oops, I missed this entry in his posted bios settings, never mind ;)

[wallypiper]

Re: Wow, you guys are awesome

Yes, 1.86 was a manual setting which I settled on after some testing with Memtest86+.

The fact that the computer was unable to boot, then booted but crashed within a minute or so, then after 24 hours of being completely powered down has booted and run for about 6 hours SEEMS to indicate this might be temp related to me. I don't know what else resting for 24 hours would do other than allow everything to cool off completely.

Regarding the "double" settings, the info I posted is what is shown in the BIOS screens. I'm not sure what you mean. The ones that have both "auto" and a value listed are shown that way on my BIOS screen. I assumed that the the value shown was the value being set by the "auto" setting, but don't know that. The values match the values shown in the EasyTune voltage tab screen shot.

When the system refuses to boot, it is always related to disk failure, at least on the surface. I get a system disk failure message and the drive light is on steadily. In at least one instance, it refused to boot from the Win 7 recovery CD also. It was able to start Seagate's drive test utility from a CD but could not access the HD.

I strongly recommend that you manually change the listed settings in the post to the values displayed in your bios to the left of the [Auto] column.

Do you mean that I should set my BIOS to the settings in the linked post listed under the line "The following settings should be set after you have loaded Optimized settings:"?

[Chike]

Re: Wow, you guys are awesome

Regarding the "double" settings, the info I posted is what is shown in the BIOS screens. I'm not sure what you mean. The ones that have both "auto" and a value listed are shown that way on my BIOS screen. I assumed that the the value shown was the value being set by the "auto" setting, but don't know that. The values match the values shown in the EasyTune voltage tab screen shot.

BIOS shows default values to the left of the colons and set values, wether auto or a number to the right (never mind the square brackets.)

It may be
MCH Core…………….....1.100V...........: Auto
or
MCH Core…………….....1.100V...........: 1.1

but not
MCH Core…………….....1.100V...........: Auto 1.1
or
MCH Core…………….....1.100V...........: 1.1 Auto

So to avoid confusion only one value on the right of the colons, auto/normal or a number.

[profJim]

Re: Wow, you guys are awesome

^^^^ yes, the first two examples are correct.

It's important that you only change the recommended settings in the post.
DO NOT automatically do this for any other settings that are not included in the linked to post.

Some of the other displayed bios values in your bios (to the left of the colon) bear no resemblance to default, "normal", or previously used settings.

[wallypiper]

Re: Wow, you guys are awesome

^^^^ yes, the first two examples are correct.

OK, well, if it says Auto, it's auto and the value is just the value I saw there.

It's important that you only change the recommended settings in the post.
DO NOT automatically do this for any other settings.

OK. Do you mean only those entries with a comment next to them? And are you referring to the framed scrolling section or the text section at the top of the post?

Some of the other displayed bios values in your bios (to the left of the colon) bear no resemblance to default, "normal", or previously used settings.

To the left? Everything to the left of the colon was copied and pasted from the "template". I only changed stuff to the right of the colon.

[profJim]

Re: Wow, you guys are awesome

The 3rd line in post #23 has been edited to clarify things.
The comments in the linked to post are only for additional information.

The purpose of the linked to post is simply:
Make the recommended changes to all of the listed bios settings (in that post) to help with stability.

[wallypiper]

Re: Wow, you guys are awesome

OK. Thanks very much for the input. The system is currently running and entertaining the wife so maybe in the morning I'll go through the BIOS and make the recommended changes. When I get a chance, I will get a new CPU cooler to replace the one that came with the CPU which now has a balky fan. Then, I'll run some of the recommended tests if I have time. Otherwise, that will have to wait a while as I'm headed out of town again next week. Thanks again.

[wallypiper]

Re: Wow, you guys are awesome

After some time of running without many problems, I was having some. Occasional BSOD's but not a lot but still, don't want any of course. So I decided to finally follow the advice and put in the BIOS settings as recommended.

I started to get BSOD's about once or twice a day and, for the fist time in my experience, was getting the same error each time. The BSOD screen was reporting memory management error. I ran Memtest86+ for about 6 passes with no errors and then ran Prime95 for about an hour with no errors so I'm thinking maybe it IS a software issue. But given the difficulty of fixing a software issue in Windows, I decided to doublecheck the bios settings, particularly the memory timing settings since I was consistently getting the "memory management" error.

I found the memory timings set to 5-7-7-24. I don't know where those came from. I had done "load optimized defaults" and then, I thought, set all the bios entries per the base list provided and particularly DRAM Timing Selectable was set to AUTO.

The EPP settings for my RAM are 5-5-5-15 so I changed the setting to MANUAL and changed the settings to 5-5-5-15. So far, no more crashes in a couple of days. I haven't done any more testing yet, maybe this weekend. Did the AUTO setting come up with the 5-7-7-24? How does it decide what settings to use? Could those settings have been causing the "memory management" BSODs?

[Chike]

Re: Wow, you guys are awesome

Without seeing your full BIOS settings then there's not much to say.

So now you are with optimized defaults and the only chnage is manual timings?

[Lsdmeasap]

Re: Wow, you guys are awesome

Yes, auto will set 577-24 often, this is why it is best to set your own timings. Once you are sure your 555-15 is stable, then next to set manually is your Driving Strengths, and then tRD (Static tRead Value)

[wallypiper]

Re: Wow, you guys are awesome

Without seeing your full BIOS settings then there's not much to say.

So now you are with optimized defaults and the only chnage is manual timings?

Optimized defaults, then the settings from the post linked above by profJim. I'm not sure how the auto settings happened. I thought I had set the timings to 555-15 before. At any rate, no crashes of any kind since making that change, although I have not done any stress testing of memory or system. Maybe tonight if I remember to start it before I go to bed. For now, alls well and wifey wants the box. After I do the testing, I'll do another post with all the bios settings and screen shots.