P3V4X memory question...

[Scouzer]

Ok, I've got a 100mhz FSB P3 800.... I'm trying to set my new PC 133 memory to run at PC 133...in my BIOS I have the following memory settings:
3/2
3/4
1/1
Auto

Now 1/1 would mean the RAM runs at PC 100...would auto put it at it's full speed (133mhz)? This is cheap generic brand BTW, so PC 150 is not really an option.

 

[Burn]

you want 3/2

 

[Scouzer]

Repeat, my RAM won't do PC 150 stable even though its CAS 2 PC 133... its cheap brand as stated... it won't do PC 150 CAS 3 either.

 

[Burn]

repeat: set it at 3/2

If you set it at 3/2 on a 100mhz fsb you will have your memory running at 133mhz.

/edit

I know it doesn't seem right, but that is what I do on my P3V4X

 

[AndyHui]

The silly settings in the BIOS are designed for:

66FSB/100RAM, 133FSB/100RAM, 133FSB/133RAM. Or at least, that is the intent of the available ratios.

 

[Scouzer]

You sure on that? 3/2 = 150mhz..? well thats odd as hell.. how do you check the mem speed for sure?

 

[Burn]

3/2 Was done for people to run their 66 bus CPU with memory at 100. The option is really not 3/2 it is plus 33.

 

[Scouzer]

Very strange... well I'll go try it again now, ty.

 

[Scouzer]

Well I'm stumped here...I ran Sandra benches after getting it at 133mhz supposedly and now it gets 200mbps slower than when its at PC 100!! GRR! Here's the numbers:
ALU: 180mbps
FPU: 196mbps

I'll go try CAS 3 and see if that helps! Brb.

 

[Scouzer]

CAS 3 is only slower...sigh...

 

[Burn]

Me is getting confused... I am going to mess with my board...

 

[Burn]

Well don't I feel like an @$$. Apparently my memory is bad and I have forgotten. It is actually 3/4. Sorry dude...

 

[Scouzer]

Much better! TY! TY!