2600Mhz but 144mhz RAM = Sad panda

[SunSamurai]

Alright my system is stable at:

2600Mhz @ 290*9.0x & 145Mhz RAM

That means about 3.5GB thoughput for the RAM. compared to about 2GBps more at ~200Mhz but I have to lower the CPU speed by about 300Mhz to get that.

Should i continue spending time trying to get the RAM up? I play WoW and I understand that RAM intencive.
Is this a normal problem? I understnd that this is always an issue in overclocking, but, is the issue usually at 145Mhz? I got the impression it would be higher than that.

Stock cooling. 3xHTT. 1.55v CPU 2.8 RAM.. I also clocked up the AGP and chipset voltages one notch. I think it was .1 and .05 respectively.

EDIT:
HTT Stable to: 350
CPU Stable to: 2600
RAM stable to: 220

Seperate from each other they each top out at that. My main question is.. where the hell is my RAM getting its ass kicked when I put the CPU into the equasion when the CPU is stable at 2600 (tested down to 2500 still no go) and the RAM is stable upto 220? 145 seems like a steep drop!

 

[Furen]

Set your DRAM clock to 133 (DDR266) and you'll get close to 200MHz mem clock (like 193 or so, which is good enough). The reason why your ram is running at 145MHz is because your DRAM clock is set to either 100MHz (DDR200). No need to increase AGP voltage

 

[SunSamurai]

I've done that. Its unstable (will not boot)

 

[Furen]

And you dont have any other dividers aside from 100, 133, 166 and 200? You could always try 350HTTx7.5 @ DDR100 which would give you between 175-187 mem clock. Your mem controller might be the problem, though. Another thing: have you tried 2t command rate?

 

[SunSamurai]

No, 100 133 166 200 are the only options. There is no ctrl+F1 type menus that I have found.

I cannot do .5 multipliers. RAM is set to auto everything (have done and will do more manual timeings) Yes I have tried 2t.

Currently running at 1.1Ghz and 220 RAM.. I dont understand why this is doing this. I can have either the RAM or the CPU OC, but not at the same time. I expected as much, but i didnt expect it to be as low as 145. Thanks for the assistance so far.

 

[coomar]

dram clock 100 won't work?

 

[SunSamurai]

100 Was the only one that would work.

133 is working now @ 293 FSB meaning 188 for the ram. For some reason it hates anything over 294 even though 350 was the limit.

 

[Ackmed]

Get better ram... ?

 

[Acanthus]

need more info about your hardware.

 

[SunSamurai]

Such as?

 

[Acanthus]

motherboard
power supply
memory

 

[Avalon]

Maybe your board doesn't like Corsair Value Select. I know the DFI boards don't place nicely with CVS all the time.

 

[bjc112]

I would run Memtest on the memory to make sure it is stable @ its rated speeds and timings.

You never know.

 

[RichUK]

what mobo are you using ?? .. you might find that a BIOS update might be in order, and this might help the situation

 

[SunSamurai]

My PSu is an Antec 350.

I already mentioned the mobo and ram in the topic summery....


BIOS is already latest.

 

[Avalon]

He's using an Epox 9nda3.

 

[Acanthus]

Originally posted by: aeternitas
My PSu is an Antec 350.

I already mentioned the mobo and ram in the topic summery....


BIOS is already latest.

Sorry, i dont normally read the summary

Corsair value select hates the 133 divider on DFI boards, i dont know if that carries over to Epox or not.

The patriot memory i have in sig wasnt very expensive and had no issues at all with all dividers, as well as being much better timings.

 

[Midwayman]

Old thread, but Im facing the exact same problem

Mem boots at 3x225 and passes memtestx86
OCZ 2x1g in banks 1 and 2. 2t 3-4-4-8 2.8v

Chip is prime 95 stable 24hrs at 2.5g
1.525v 9x 278 venice core 3000+

Board is okay upto 300mhz
epox 9nda3j latest bios

But I can only get it to do the 2500mhz at 1/2 memory setting. Well well below what the memory is supposed to do independantly.

PS is antec 350.

Zalman Cu cooler. (the huge one, cant remember the model offhand)

What gives? Pisses me off that I spend more to get 1g sticks to run 1t. I cant do that, I cant boot OC'd with any memory speed. Seems like I got the crappiest ram ever.