P4P 800 and 4 sticks of ram question.

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Mr Bond

I have a P4P-800 and Kingston Hyperx PC 4000 ram.
I have two sticks in, 512 meg in total.
Now I have ordered another two sticks to make it one gig of ram.
I have my Pentium 4 2.6 overclocked to 3.1 Gig and it's very stable.
Is putting another two sticks in going to make the MB less stable at
238 bus speed?
Thanks in advance to anyone who answers this.

Bond.
 
Mr Bond said:
I have a P4P-800 and Kingston Hyperx PC 4000 ram.
I have two sticks in, 512 meg in total.
Now I have ordered another two sticks to make it one gig of ram.
I have my Pentium 4 2.6 overclocked to 3.1 Gig and it's very stable.
Is putting another two sticks in going to make the MB less stable at
238 bus speed?
Thanks in advance to anyone who answers this.

Bond.
Click to expand...

I've heard of four sticks doing DDR440, and I think they were
double sided. Your four single sided DIMMs should be able to do
better than that. So, greater than 220 and less than 250.
You may even make it back to 238 :-)

HTH,
Paul
 
Paul,

Thanks for the advice.

Got the other two sticks yesterday, after the computer store warned me
about the "dire" effects of using four sticks of PC 4000 ram and
trying to overclock the MB with all four sticks.
I am a gambler, so...put it in fired it up, overclocked to 239 Mhz,
one Mhz over what it did before. Enabled PAT (The Asus Cheat ver for
865 chipset) and it works like a charm. Ran Prime 95 for three hours
without a hiccup. 239 ws the fasted it would go though.
Anyone tell you with win2000 you will not see a differance with one
gig of ram. There full of bunk. I guess it all depends on what your
running. Photoshop runs faster, apps boot up faster, heck it just
FEELS faster.


Bond.
 
Mr Bond said:
Paul,

Thanks for the advice.

Got the other two sticks yesterday, after the computer store warned me
about the "dire" effects of using four sticks of PC 4000 ram and
trying to overclock the MB with all four sticks.
I am a gambler, so...put it in fired it up, overclocked to 239 Mhz,
one Mhz over what it did before. Enabled PAT (The Asus Cheat ver for
865 chipset) and it works like a charm. Ran Prime 95 for three hours
without a hiccup. 239 ws the fasted it would go though.
Anyone tell you with win2000 you will not see a differance with one
gig of ram. There full of bunk. I guess it all depends on what your
running. Photoshop runs faster, apps boot up faster, heck it just
FEELS faster.


Bond.
Click to expand...

An excellent result! 239*2 = DDR480. I am impressed :-) That is
a testiment to the lower loading of single sided sticks. With
four double sided sticks, you might have dropped closer to
the 220 number.

Tell me, do you see any video artifacts ? When running 1:1 ratio,
this thread on abxzone.com finds a high incidence of video noise
caused by running the P4P800 at high overclock. I haven't been
following this problem, to see if anyone has come up with a BIOS
hack, or a sequence of BIOS to flash, that will fix it. Owners
of P4P800 boards have noticed, that if you bought a P4P800
board when they first came out, the 865 on the board is the same
quality as an 875. Later shipping boards gave Intel time to
improve its binning process, so the 865's aren't as good as they
used to be. Anyway, have a look at this:

http://www.abxzone.com/forums/showthread.php?t=62275

Also, get a copy of CTIAW from heise magazine.

ftp://ftp.heise.de/pub/ct/ctsi/ctiaw.zip

and use it to verify your RAM settings. It tells you whether
PAT is enabled or not. (PAT here meaning, the two cycle reduction
in access time feature that is only supposed to work on 875's,
but has been made to work on the 865 as well.) You can see
examples of the info CTIAW gives, in this thread:

http://www.abxzone.com/forums/showthread.php?t=49613

Paul
 
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