Can memtest86+ detect CPU L1/L2 cache memory problems?

[rayleemw]

Hi everyone,

I have built a new system and when I ran memtest86+ on Q9450, it comes up with this:

error: mem location: 0000000, 0.0MB
from any test, seems like random. pops up at least 5 errors in 10 minutes of testing.

My question is this: Can the problem be the CPU's L1 or L2's cache?

The guy in computer store INSISTED memtest86+ ONLY test out the RAM.

SO this is what I did - I have swapped my 2x2GB A-Data CL4 memory to a completely new set (since at first I suspected that was the problem), tried using only one 2GB in different slot, the error is still present.

My system is running at stock speeds.

The only reason that lead me to this test was - when I used prime95 to put all 4 cores to 100%, the mouse lags/stutters. I have tried new installs of windows on different new harddrive also.

Could memtest indicate other problem such as my Ati 4850 graphics card?

My system:
Q9450 stock
Thermalright Ultra-120 extreme push pull /w Arctic-cooling PST fans
ASUS P5Q deluxe
A-Data 2x2GB CL4
Gigabyte Ati 4850
Cooler Master M850W power
Cooler Master 690 case
3x Noctua S12 fans & 3x Noctua P12 fans for exhast & case cooling.

Temp: CoreTemp, Idle - Load:
1. 53 - 63
2. 49 - 55
3. 48 - 55
4. 51 - 61

 

[rayleemw]

I just need someone with experience to let me know it is likely to be the CPU.

The store I got it from won't help saying it could be anything in the system, and would not replace or help (they got a 7 days replacement policy too!)

He put the CPU on in the store - once he got win xp up and the mouse is moving, he said "looks fine to us"

...

RMA Intel? or really it could be anything in the system? (I already swapped new RAM..)

 

[Lorne]

The mouse stutter or lag when the cpu is heavy loaded is most likely due that the mouse is USB which is software driven where as PS2 ports are hardware driven.

Memtest shouldnt touch your gfx at all, Just system mem.
Is memory voltage set correctly?
If L1 or L2 were as bad as you mention you would be BSOD or just constent resets even durring posting as those caches are always busy.

 

[n7]

0000000 @ 0 MB = mobo usually.

Honestly the chance of it being the CPU are incredibly slim.

Bios updated?
Use 0803 or 1102 (not 1003, Asus pulled that one).

Running the latest Memtest86+? (v2.01)

Voltages set properly?

Obviously something is funny, but it's more likely to the mobo or something set wrong that CPU.