Hitting a wall @ 265 HTT

[MrCodeDude]

The setup:
S754 A64 3200+ NewCastle
DFI UT Lanparty nF3 250Gb
1x512mb stick of PDP Patriot PC3200+XBL (Samsung TCCD 440 chips)
9800 Radeon Pro

Hit the wall at the following:
@227 HTT, 2-2-2-5, 2.6V
@234 HTT, 2-2-2-5, 3.0V
@266 HTT, 2.5-4-4-7, 2.6V
@266 HTT, 3-4-4-7, 3.0V

So, obviously I'm hitting a wall at 266 HTT. This was all @ an 8x multi. I lowered the multi to 7 to see if I could get a better reaction out of the chips, but no, still hit this 266 HTT wall.

The Lanparty allows me to go up to 3.2V (I think), however a +.4V change did nothing for the memory. I don't want to venture too far out of spec at the moment... or at least until I get some active cooling on the memory.

It memtest's fine @ 260 HTT, 2.5-4-4-7, 2.6V, no errors. But that seems to be the max I can get it stable. And even though the mobo allows TCL options of 3.5 and 4, the comp refuses to boot at the timings. 🙁

Is the only way to get more out of my memory to keep adding on the volts? I thought TCCD didn't really care for voltage that much, at least, not in the way BH-5 loved it.

 

[govtcheez75]

I have the same chip, and mobo, with Mushkin BH-5. My memory will memtest just fine upto 260HTT running 1:1 at 2-2-2-5 at only 3.1v, but will have to run a 8 multiplier. I can also run 250 at 9 multi, and 235 at 10 multi. I don't know if it's better to run these higher HTT with such low multipliers, resulting in about 2200mhz, or to run my current setup at 225x11 running about 200mhz faster.

 

[MrCodeDude]

Ideas?

 

[nealh]

lower ram divider....even if the ram can do high fsb this will probably solve the issue...go from 1:1 or 200 to ram 166

also I would recommend setting it at 10 not 7...remember Zebo thread above on ram settings...

 

[Markfw]

HTT multi at 3, divider at 133.

 

[TorinoGT24]

What you are experiencing is the on die memory controller's limits. This is a common problem with the Athlon 64's. I can run up to 300HTT with the same board stable, but not at 1:1. My TCCD ram runs just fine up to 300mhz, but the memory controller cannot handle it. If I use only one stick rather than two, it works fine. 260 is the best I can achieve at 1:1. 🙁

-Collin-

 

[nealh]

1:1 is not important except for benchmarks for the most part real world no differences...see Zebo's thread above...winrar does benefit some

 

[MrCodeDude]

Originally posted by: Markfw900
HTT multi at 3, divider at 133.

Did that, memory still tops out at ~260 HTT.

Is the problem just that the chip can not handle the memory going past 260 and therefore, my memory will max at 260?