A7N8X-X, 2600XP, RAM on 400MHz, crashes

  • Thread starter Thread starter Hrvoje
  • Start date Start date
H

Hrvoje

Hi,
I read somewhere taht it's unstable to run proccesor with diffrent FSB than
RAMs. My friend bought the whole system and those sales guys gave him that.
System works OK in Windows. But after running demanding programs (3D Studio,
games, etc.) screen becomes black and crashes. I tried to lower the memory
frequency but I can't. Guys from the store said that you can't lower that
frequency, but my other friend lowered it on Gigabyte MB.
What should I do?

Thanks in advance
 
The CPU and ram should run in sync.
A 333fsb cpu runs at 166MHz
The ram should be PC2700(166Mz)(DDR333).
cpu external freq = 166
 
Noomie said:
The CPU and ram should run in sync.
A 333fsb cpu runs at 166MHz
The ram should be PC2700(166Mz)(DDR333).
cpu external freq = 166
Click to expand...

Yeah, but what do I do since those sales jerks installed him a 400MHz RAM?
 
Yeah, but what do I do since those sales jerks installed him a 400MHz RAM?
Click to expand...

http://www.asus.it/support/download/item.aspx?ModelName=A7N8X-X&Type=All
ftp://www.asus.it/pub/ASUS/mb/socka/nforce2/a7n8x-x/e1461_a7n8x-x.pdf (pg.46)

The manual shows a "Memory Frequency" setting. It might be "By SPD",
and you could try "100%" or "Sync" or "Auto" (whichever is offered).
Get a copy of memtest86 from memtest86.com or memtest86+ from
memtest.org and test the memory after you've set it up. Those programs
prepare a custom bootable floppy diskette, that you can use to boot
the machine with (no DOS needed).

You might also find a program like

http://www.cpuid.com/cpuz.php
http://aida32.hu/aida32-shots.php?type=l

useful later, for verifying the BIOS settings while you are in
Windows.

HTH,
Paul
 
Paul said:
RAM?
(pg.46)

The manual shows a "Memory Frequency" setting. It might be "By SPD",
and you could try "100%" or "Sync" or "Auto" (whichever is offered).
Get a copy of memtest86 from memtest86.com or memtest86+ from
memtest.org and test the memory after you've set it up. Those programs
prepare a custom bootable floppy diskette, that you can use to boot
the machine with (no DOS needed).

You might also find a program like

http://www.cpuid.com/cpuz.php
http://aida32.hu/aida32-shots.php?type=l

useful later, for verifying the BIOS settings while you are in
Windows.

HTH,
Paul
Click to expand...

Thanks. I'll try those.
Click to expand...
 
Hrvoje said:
I tried that mem test on my computer. How long should you live it to work?
What do you do after and what results do you get? Like speed, quality, or
what?
Click to expand...

There is a PASS counter, and that shows the number of times the set
of tests have run. On my slower machines, I just leave it running
overnight, but with a faster machine a shorter interval might be
alright.

If there are errors, I think they are listed in the middle of the
screen. If you have a lot of errors, the screen could start to scroll
up, or the screen could be messed up.

There are also some extended tests, if you want to enable them.

The basic idea, is to use this test to focus on memory errors.
If the test shows no errors, and yet you still have problems in
Windows, then the problem could be elsewhere, like the Video card
or the AGP interface etc. Since the crashes you mention involved
the 3D features of the video card, the problem might be there
instead. Since the motherboard doesn't have a Via chipset, this
is all the more puzzling :-)

You might try testing the video card in another machine, or
adjusting AGP parameters in the BIOS.

To determine whether the processor itself is at fault, get a
copy of Prime95 or SuperPI, and run them for a while. They don't
use the video card, so if the machine crashes or the programs
give an error, that might indicate that the processor isn't
healthy. You may want to use either Asus Probe or Motherboard
Monitor (MBM5) [but not both programs at the same time - only
install one of them] to monitor the temperature of the CPU
while doing this test.

HTH,
Paul
Click to expand...
 
news:[email protected]...
Click to expand...
I tried that mem test on my computer. How long should you live it to work?
What do you do after and what results do you get? Like speed, quality, or
what?
Click to expand...

Oh, I forgot... You want the memory to be error free. No errors should
be tolerated, as they can cause the computer to crash at some future
time. You have to solve a memory error problem first, before attempting
to install or boot the OS. Otherwise, your install could be corrupted,
anytime new disk information is copied from (bad) memory onto
the hard drive.

HTH,
Paul
 
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