BSOD even after reinstall, yet passes Prime95, Memtest etc.

[transparentopa]

Hi guys,

I've built many simple PC's for people, but upgrading my own in January was the worst thing I ever did! I've an Antec P180 case, to which I fitted a new Mobo, CPU, RAM and Gfx Card. The thing was so unstable. I ran out of time trying to fix it, so took it to a shop where they reinstalled the OS and all new RAM. It worked, joy.

Ever since it's always been a little flakey - occasional random reboots, BSOD's, failure to power up after sleep - but the last two weeks it has been terrrible (no hardware changes). After a repair install of Win7 made it no better, I went for a total clean install I had BSOD again within 30 mins - with nothing connected but mouse, keyboard, monitor + SSD and 2nd HDD.

It always seems to be when I am browsing online (even in safe mode!) - yet Photoshop, watching videos etc. is fine. The problem browsing is in IE, Firefox or Chrome; doesn't matter.

Today I ran all RAM modules through Memtest86 individually, all passed; then ran Prime95 for a few hours, then PassMark BurnInTest. I updated the SSD to firmware v2.0 from v1.1 this morning and enabled AHCI, but this hasn't helped any.

Can anyone see anything in the attached info that I may have missed?

I'm would like to return the mobo for replacement under warranty, but I can't demonstrate what is wrong!

 

[DocBrown]

First thing I see in your snips is mis-matched ram memory. Size & speed.

You have to wait for some other member to do your BSOD analysis.

How about a snip of each memory stick as seen in CPU-Z

 

[transparentopa]

First thing I see in your snips is mis-matched ram memory. Size & speed.

*Slaps forehead* I never thought that would be a problem, as that's what the shop put in and I've never changed it, but you could be right!

As it happens, today I ran through all the RAM sticks I have at home and tested them all on a spare machine with Memtest on a Ubuntu USB. All the sticks the shop said were bad were actually good, except one. I jigged the ones in the problematic PC around so instead of 2x1GB + 2x512MB, I just have 3x1GB and room for another 1GB stick when I buy one. They are all the same speed (see attached).

20 mins stable so far, I'll have to see how it goes. Hopefully I've fixed this problem by accident!

 

[DocBrown]

When you get a 4th stick, make sure you match it with a Corsair brand & same speed.

You might want to check your system info with SIW (Freeware)
It shows good info also about MB, Memory, etc


:ar: Buy SIW Pro or Download SIW Freeware

 

[transparentopa]

Well, buoyed by the hope that we'd found the problem, I reinstalled all my software and went about my usual online activities. All last night, no problem. This evening, no problem....then another BSOD

Report attached....can anyone help please?

 

[transparentopa]

Would anyone be able to spare a moment looking over my crash reports, please? I'd really appreciate it.

My finger is poised over the 'Buy now' button for another MOBO & RAM, but it'd be a waste if it's something simple to fix...