Solved Hardware reserved RAM (1/2 of 8GB)

[adamf]

"GURU" "VIP MEMBER" "Senior Member bla bla bla

Slovakia is part of Hungry right? Or Europe or Japan or something like that right - what ho?

 

[Wor3d]

"GURU" "VIP MEMBER" "Senior Member bla bla bla

Slovakia is part of Hungry right? Or Europe or Japan or something like that right - what ho?

Slovakia is country in between Poland, Czech republic, Ukraine, Hungary and Austria. Why?

 

[adamf]

Only curious. Be nice - it helps.

 

[Wor3d]

Only curious. Be nice - it helps.

Yeah, I didn't mean it that way. Sorry if I offended you. I was just pissed off...

>>Any other ideas people?? Like, RAM related?

 

[AimHigh]

So, this problem has existed since you built / bought the PC over a year ago?

If it has, and it seems you have verified the memory as good in another system, I would say the motherboard or CPU is bad. I've seen a bent pin on a CPU do this as well as motherboard flex (a friend of mine ran too many cables under the board - causing it to flex). It could also be a standoff touching the motherboard - hard to know since I don't know if you self built the machine.

But I would start by checking the CPU / Motherboard connection and verify nothing is touching any runs or flexing the board. Check all the standoffs to make sure they are in the correct positions are the correct height. Set up your motherboard on a flat piece of wood covered in some foam rubber to rule out flex and grounding issues. You should be able to figure this one out quickly but you may be beyond the motherboard warranty although I know it is a pain to tear your system apart like this. I know I always hate CPU / Motherboard errors....

Good luck.

 

[Wor3d]

So, thanks for idea! I opened pc, checked all cables (nothin under MOBO) and pulled out CPU. After 2mins I detected bended pin (forgot to take a photo, so attachment is just google image with circled pin which bended) After I bended that pin back, it broke. Whole pin but, it is no more colapsing with other pins, and it seems like it solved my 2nd problem (http://www.eightforums.com/bsod-crashes-debugging/64051-bsod-after-fresh-start-3.html#post493891), although I am not sure yet. RAM problem continues....

 

[CountMike]

I'm wandering how it fit in the socket and worked at all with a bent pin.

 

[Rocky]

I didn't even know that a CPU would work with a bent pin. I just learned something.

 

[CountMike]

I didn't even know that a CPU would work with a bent pin. I just learned something.

You would be amazed what a ball peen hammer could do !

 

[Wor3d]

Yeah.. So that pin is not there at all... Could this be the problem? Because I think that when I used CPU first time, I had this problem too... Then I reclaimed MOBO and problem continued (and then when I was changing MOBOs I bended that pin?)

 

[CountMike]

If BIOS detects whole RAM than that missing pin has nothing to do with it.

 

[Wor3d]

So what should be the case :'(

 

[AimHigh]

RAM detection is controlled by a chip on the module. It reports the size, speed, and SPD parameters for overclocking. I have seen instances where the data is reported and the module does not work. Never have I seen if the data is not reported and the RAM module works. While many CPU pins are not used, you seem to have an issue and a missing pin. I would start there. Good luck.

 

[Wor3d]

Apparently, (AM3, didnt found AM3+ datasheet), I broke one of 64 another MB_DATA pins, which are described as "DRAM INTERFACE DATA BUS", and pin is "Bidirectional, VDDIO, single ended".

I can imagine, that this could be the case. But as I said, I think that first use of cpu it wasnt bended and I did have this problem. But ok - is this pin so important, if yes - am I able to repair it? I searched internet for CPU pins repair, not sure if here at Slovakia someone does that...

 

[popeye]

Found this on another forum. Try it at your own risk.

 

[CountMike]

Heard about that fix too but never had reason to try. Apparently length of added wire is most important. A small piece of gold dental wire may be even better.

 

[Wor3d]

Hey!

Yeah, I found out that CPU might be the problem, because I called friend and we tried to put there his FX-6100 and all worked normally.
Will try to do something with that pin, but I think that CPU is broken anyway, because I tried this things before CPU broke.

So, will close this thread.

Cause: Processor broken and/or broken PIN responsible for RAM communicating, OR ??? CPU incompatibility with MOBO/ other parts ???