5:4 divider castrates DDR performance?

MeowChow · 23rd August 2003, 1:10 AM

I have some DDR modules (sammy E-TCCC) that are capable of 235-260 FSB @ 2.8V, but when I turn on the 5:4 divider, with an IC7 mb and 2.4C cpu that I know go 290+ (with different RAM), the memory suddenly maxes out at 216-220. What gives? I've memtested stable at 1:1 235 mem, but at 5:4 even 218 mem gives immediate memory (single-bit) errors.

I'm stumped. Any ideas?

chainbolt · 23rd August 2003, 8:08 AM

Quote:

Originally posted by MeowChow
I have some DDR modules (sammy E-TCCC) that are capable of 235-260 FSB @ 2.8V, but when I turn on the 5:4 divider, with an IC7 mb and 2.4C cpu that I know go 290+ (with different RAM), the memory suddenly maxes out at 216-220. What gives? I've memtested stable at 1:1 235 mem, but at 5:4 even 218 mem gives immediate memory (single-bit) errors.

I'm stumped. Any ideas?

How do you know that your DDR modules are good for 260 FSB?

MeowChow · 23rd August 2003, 9:45 AM

One stick, 260FSB at 1:1, memtests for hours without fail.

elf · 25th August 2003, 10:30 AM

Read here:
http://www.madshrimps.be/?action=getarticle&articID=92
and continue in this thread

23rd August 2003, 1:10 AM	#1
MeowChow Member Join Date: May 2003 Posts: 4	5:4 divider castrates DDR performance? I have some DDR modules (sammy E-TCCC) that are capable of 235-260 FSB @ 2.8V, but when I turn on the 5:4 divider, with an IC7 mb and 2.4C cpu that I know go 290+ (with different RAM), the memory suddenly maxes out at 216-220. What gives? I've memtested stable at 1:1 235 mem, but at 5:4 even 218 mem gives immediate memory (single-bit) errors. I'm stumped. Any ideas?

25th August 2003, 10:30 AM	#4
elf Member Join Date: Jul 2002 Posts: 30	Read here: http://www.madshrimps.be/?action=getarticle&articID=92 and continue in this thread __________________ I am . . . . . . dream caster . . . . . .forge your dreams 'til we touch them.

23rd August 2003, 9:45 AM	#3
MeowChow Member Join Date: May 2003 Posts: 4	One stick, 260FSB at 1:1, memtests for hours without fail.