Blue Screen Problem

[Eagle]

My system keeps crashing to a blue screen but its a Physical Memory dump screen. Now if I underclock my processor and change the PCI Frequency to 100/33 the problem goes away. But as long as the processor is at full speed and the PCI frequency is at 133/33 the error remains. At first I thought this was a heat problem but the Asus motherboard COP feature should completely kill the power if the processor is detected as being too hot so it cant be that.

 

[RJARRRPCGP]

Which Asus motherboard?

 

[Eagle]

Which Asus motherboard?

A7S333

 

[Remote]

Tried flashing it to a newer bios? Could very well be that your mobo / bios doesn't support that combo of cpu + mobo...

Or that you have a real shitty heatsink that makes your cpu overheat, really shouldn't but anythings possible I guess...

The performance you loose by having it at 100/33 instead of 133/100 shouldn't be that major, a couple of percent at worst case scenario..

But check the mobo homepage / mobo faq for clues...

 

[Macca]

im pretty sure i have the exact same problem. currently im running my 2.4 at 1.8 because at full speed i get a blue screen after a various amount of time. at 1.8 i have kept it on for over a week straight.

i've found no solution yet but if you find something please tell.

 

[Eagle]

Well the bios is fully upgraded already. It has worked fine before, its a recent development. The CPU Fan is a Thermaltake Dragon Orb w/ Arctic Silver Compund. I dont think thats the problem unless the fan stared malfunctioning but then my processor would have blown completely.

 

[Ryan Smith]

If your RAM is running asynch with the FSB, have you tried setting back to normal?

What are your RAM timings set at? If they are really relaxed, maybe you could try pulling all of the PCI cards out to make sure that they aren't causing the problem?

 

[RJARRRPCGP]

A7S333

I asked, because if you have an Asus A7N8X motherboard, that may be the problem, because those motherboards, reportedly by some people on tech message boards are having major problems with those motherboards, including the dreaded random BIOS corruption problem. Those motherboards seem to often be unstable
when used with hardware combinations that most people use. The Asus A7N8X motherboards are majorly finicky reguarding RAM and possibly finicky reguarding Athlon XP processor variants. The symptoms may vary with BIOS revision.The symptoms people posted on some message boards also included majorly strange behavior for no apparent reason after building their PCs with those
motherboards.

I didn't get an Asus A7N8X motherboard, despite they appear to overclock well, because I seen so many posts about major problems, including random BIOS corruption and at the PC part store in Claremont, New Hampshire, Competitive Computers, the Asus A7N8X Deluxe motherboard costed more than I could afford,
at $192 dollars.

 

[Malcolm]

my A7N8X-X mobo works great, milage may vary; oh and they o/c very well, 2400+ (2.0ghz) up to 2.3ghz and shes running at a cool 42°C

 

[Eagle]

If your RAM is running asynch with the FSB, have you tried setting back to normal?

What are your RAM timings set at? If they are really relaxed, maybe you could try pulling all of the PCI cards out to make sure that they aren't causing the problem?

Not sure where to find this. How do I tell if the RAM is running asynch with teh FSB? Or RAM Timings?

 

[Ryan Smith]

Not sure where to find this. How do I tell if the RAM is running asynch with teh FSB? Or RAM Timings?

I downloaded the manual for your motherboard and looked at it. It looks like you can set the FSB/DRAM clock either on the motherboard using the DIP switches, or set it to not use jumpers and allow you to configure the different speeds in the BIOS.

In the BIOS, you can just set the FSB/RAM speed ratio (1:1 for the moment). If you are running anything else, it might cause a problem.

Your RAM timings are in the Advanced tab, Chip Configuration submenu.

If they are really aggressive (i.e. 2225), try relaxing them a bit, and then going to test the system.

I don't know if this is the problem or not, but it's worth checking out. Just try keeping the FSB at 133 and running the RAM 1:1 with the timings at 3/3/3/6 and then seeing if it crashes. If it does, try running the FSB at 100 and the RAM at 133 (I think this is the 4:5 ratio option?), relax the timings, and testing. If it crashes here, it might be that the RAM is bad. If it still crashes, maybe the drivers are causing it.

If you think it might be the RAM, there is a way to give it a little more voltage. If it runs at a higher voltage, it is most likely the RAM going bad.

BTW: What is the error code the blue screen gives you?

 

[RJARRRPCGP]

my A7N8X-X mobo works great, milage may vary; oh and they o/c very well, 2400+ (2.0ghz) up to 2.3ghz and shes running at a cool 42°C

I thought you have an Asus A7V8X-X motherboard, *NOT* an Asus A7N8X-X motherboard. There's a major difference between the two.

 

[RJARRRPCGP]

If it crashes even with the FSB at 100 mhz, I don't like to tell you that maybe the processor you have is possibly faulty or overheating.

 

[Eagle]

Alright here is an update. When in BySpd mode, at ~1600Mhz the memory settings are 2.5/4/4/7, at ~1200Mhz the memory settings are 2/3/3/6. I have set the clock speed to full and the memory speed to 2/3/3/6. I will let you know when and if I experience the crash again.

 

[Eagle]

Alright here is an update. When in BySpd mode, at ~1600Mhz the memory settings are 2.5/4/4/7, at ~1200Mhz the memory settings are 2/3/3/6. I have set the clock speed to full and the memory speed to 2/3/3/6. I will let you know when and if I experience the crash again.

Well that didnt fix it, it crashed. I dont think there is anything wrong with the processor though.

 

[jollyrancher]

What temperature is it running at after playing a CPU-heavy game for 15 minutes?

 

[Eagle]

At full speed? I have no idea it crases before I can run a CPU heavy game for 15 min. It crashes if I open too many applications at once. I think its a memory problem, not the CPU.

 

[Ryan Smith]

Alright here is an update. When in BySpd mode, at ~1600Mhz the memory settings are 2.5/4/4/7, at ~1200Mhz the memory settings are 2/3/3/6. I have set the clock speed to full and the memory speed to 2/3/3/6. I will let you know when and if I experience the crash again.

How does it run with 2.5/4/4/7 at full speed?

You can try giving the RAM just a little more voltage (don't push it past 2.7 unless you are actively cooling it, or unless it will only be that high for a few minutes) to see if that's what's really causing the problem.

 

[Eagle]

How does it run with 2.5/4/4/7 at full speed?

You can try giving the RAM just a little more voltage (don't push it past 2.7 unless you are actively cooling it, or unless it will only be that high for a few minutes) to see if that's what's really causing the problem.

Well it crashes at 2.5/4/4/7 at full speed, thats the whole problem. Thats what it should run at when the CPU is clocked normally. But it crashes at 2/3/3/6 when the CPU is clocked normally too.

 

[Ryan Smith]

Well it crashes at 2.5/4/4/7 at full speed, thats the whole problem. Thats what it should run at when the CPU is clocked normally. But it crashes at 2/3/3/6 when the CPU is clocked normally too.

Try giving the RAM a little more voltage.

If it still crashes with the RAM at 2.7v, something else is probably wrong.

Do all of the OS's you have installed crash when you're at full speed (regardless of timings)? I'm guessing that they would, but I thought I'd ask anyway.