I have a home built ASUS A7N8X2 Deluxe MoBo with an AMD Athlon XP 2800+ CPU. I upgraded Win XP Pro to VISTA Ultimate with no problems other than upgrading a few drivers. It went smoothly. At the time I had 1 GB in one of 3 available slots. I attempted to add 2 GB more to occupy all 3 slots. This produced a reboot after POST as VISTA started. I rotated the the modules through all slots and finally realized that when I went beyond 2 GB it produced a reboot. During post it tests 3 GB and the BIOS displays 3 GB. I have 512MB of RAM on the video card. Any suggestions ?? I am running the latest BIOS and if I remove one GB the machine boots and runs great... ???? Ron
Have you actually tested the memory? I'd run through several passes of Memtest86+ to make sure its not faulty memory, a bad memory slot, or a incompatible combination.
All three DIMM are CRUCIAL PC3200 1GB modules and the same part number. I have rotated through all three slots and used all three DIMM. It ONLY fails when all three slots are filled. Previously I had 1 GB and two 512 MB CRUCIAL DIMM and it worked fine, but again that equaled 2 GB... I don't know what to try next, I really believe the memory is fine and the slots (I have spent HOURS trying different combination). So where do I go in VISTA???
I came across your posting and have an identical problem. If you managed to solve the issue I would be grateful to know how. I am in contact with Crucial at the moment and could let you know if they come up with the answer.
Kama, thanks for your suggestion. I tried installing the update KB929777 and checked that it was installed but the issue was not resolved. The error message I get, when the blue screen gives me time to read, it is as you describe. Perhaps this solution did not work as the patch seems to be for computers with more than 3gb. i.e.
This problem occurs if the following conditions are true:
The computer uses more than 3 GB of RAM.
The computer uses a storage system that is running the Storport miniport driver.
The computer uses a controller that uses 32-bit direct memory access (DMA).
I am trying to install 3gb. I've tried using safe mode with prompts. The computer always stops at "Windows/System32/drivers/crcdisk.sys"
I thought this update was the fix so I tried it theis morning... whikle I don't get a blue screen now it just reboots and reboots and reboots.... I also tried Safe Mode etc., no luck... anybody else have a clue out there???? Ron
Ron. I've found that the blue screen will sometimes happen sometimes not. A solution that was suggested to me by ASUS was as below. It did not work on my computer but may on yours. It involves lowering the frequency of the memory which I think can affect the performance of games.
Enter BIOS----Advanced----Advanced Chipset Features----System Performance,
Ron. Sorry about that. If I get a solution from Crucial or ASUS I will post it. If you've got the time it might be worth contacting Microsoft Support. I think that Vista is still under guarantee and so the support is probably free. They were very helpful with a recent problem. If Asus or Crucial do not have the answer I won't be able to post it until a week on Tuesday. I am wondering whether to exchange one of the memory cards for 4gb of flash memory and to use that to boost memory.
Ron... Just to let you know where I got to. The memory manufacturers tell me that the problem is that the A7N8X Deluxe motherboard is probably unable to provide the power required for three memory sticks. On the other hand Asus say that they are not aware of this issue and suggest trying memory that may be more compatable. I asked which memory they would recommend and Asus said Kingston or Samsung. I'm not sure I want to go along that line only to find the same problem.
I thought that is it was a power problem this might be due to dirty connections and therefore increased resistance. I also read on a forum of someone who had resolved this problem by using electronic cleaner. But just cleaning the memory card connectors did not help me. I was wary of using a liquid cleaner to get into the dimm slots.
I asked about the alternative of using the Vista boosting flash memory but was told that this would be slow.
What I haven't explored is Vista's possible part in the issue. I suppose one way to explore that would be to have Windows XP installed on the machine and seeing whether that coped.
All the best and good luck. Maybe 2gb isn't so bad after all.
I keep hoping but I have also been defeated at every turn on this problem and I am a VERY PERSISTENT person..... If I hear anything I will certainly give a holler as I have a 1GB DIMM sitting here on my desk... Thanks again.. Ron
Some thoughts. I did have three memory sticks working previously in Vista. That is the original 2x256 of Samsung ram supplied with the computer new and an additional 512 Crucial ram. You may be able to get a refund on at least one stick of the Crucial memory.
As I have two hard drives I installed Windows XP on the second hard drive. I then tried using my two new 1gb plus a 512, thus using all three slots with a total of 2.5 gb memory. It worked in Windows XP but still not in Vista. So the problem seems to be with Vista itself or Vista is unable to cope with something that XP can. Maybe Microsoft will resolve this. I have read somewhere else that Vista randomises the use of memory in order to make the sytem safer. I'm not sure what that means.
I have 512 MB of Crucial Memory coming TODAY!! Based on these posts I am not encouraged I will post my results by tomorrow evening. Have all of you installed the KB929777 Hot Fix? Grasping at straws now...Ron
Well as I suspected I had two GB of Crucial memory and added a .5 MB module..... It doesn't like that combination at all. Same results... I truly believe it to be a VIsta problem... Ron
OMG I have almost the exact same problem...
I am trying to upgrade from 2Gb of Patriot RAM to 3Gb...I am absolutely sure I am using the same kind of RAM...but when I put them all in it basically gives a blue screen and restarts...memory tests from BIOS work perfectly fine...
I have a EVGA 680i SLI mobo with a 700W Triple Rail power supply powering it...I had assumed I wouldn't have any problems but well I jus dun know whether I should return this RAM or wut...
Okay ITS WORKING!!!!!
Okay so heres wut I did....
I first confirmed that all of my RAM modules were working by swapping around RAM in different slots etc...
After installing this update (which I thought would fix my problems alone): http://support.microsoft.com/kb/925528/en-us I discovered that then I could put in 2.5 Gbs of RAM...2X1Gb and 1X512Mb module
Then I got mad...but after installing this update: http://support.microsoft.com/kb/929777/en-us I finally found that I could consistently boot into my system with all of my RAM in my mobo...YAY!!!
now Im jus thinkin wut troule ill need to go through when I eventually need to reformat...
I hope that this solution works for anyone else who is having this same problem...
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