Current Overclock...

[Clarity]

Right now, I have my Opty 170 running at 250x10=2500 Mhz. My RAM is also operating at 250 Mhz. Is this strange? In my games I haven't noticed much of a performance increase, and it seems really lucky. From the various threads on this forum, people are on a RAM divider, around 166 Mhz most of the time. Is there something I'm missing? How'd I get this RAM speed at 2.5 Ghz? Did I miss something that's lowering my performance but allowing my RAM to run at 250 Mhz?

[Brother Esau]

Don't quite understand where you are going with this?

Why don't you run some benchmarks with different settings and that should tell you whats up! Also comprare notes to people with the same ram.

 

I actually have the same ram in my rig right now and I am waiting on my redlines what do you want too know exactly?

 

This is my ram....OCZ5002048ELGEGXT-K ...... EDIT: sorry dude I haven't slept yet! Yes in cpuz it will say 250mhz thats the speed its running per module now X2 that and you have 500mhz...HENCE.... DDR500

[TheWizzard]

Hihi. Okay. You're prolly in the same state i was in a couple of weeks ago. It's best to start of with reading the defenitive DFI NF4 overclocking guide. In there is almost everything you need to know and how to maximize your system to its limits.

 

Please, be my guest, and read that manual:)

[Coors]

Well you increased fsb up to 250 hence your ram is running at 250. Do you not understand something? 250 is what your ram is rated for.

[Brother Esau]

Just to let you know thes settings work for me up too 265mhz 200:1:1 but you may or may not get DDR530 from you're sticks or you may get more than me who know's see and find out. Let me know if I can help anymore!

 

But I suggest you look at this and familliarize yourself with first though...http://www.dfi-street.com/forum/showthread.php?t=20823

 

 

 

HERE THESE ARE THE STICKS I HAVE JUST PROVIDED SETTING'S FOR.....OCZ5002048ELGEGXT-K

 

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[b]Genie BIOS Settings:[/b]
[color=red]
FSB Bus Frequency.............................  -  260 - 265 
LDT/FSB Frequency Ratio.......................  -  3
CPU/FSB Frequency Ratio.......................  -  10
PCI eXpress Frequency.........................  -  101Mhz

CPU VID StartUp Value.........................  -  1.400v

CPU VID Control...............................  -  1.425
CPU VID Special Control.......................  -  Auto
LDT Voltage Control...........................  -  1.20v 
Chip Set Voltage Control......................  -  1.56v
DRAM Voltage Control..........................  -  2.74v[/color]

[b]DRAM Configuration Settings:[/b]
[color=red]
DRAM Frequency Set............................  -  200=RAM/FSB:01/01
Command Per Clock (CPC).......................  -  Enable 
CAS Latency Control (Tcl).....................  -  3
RAS# to CAS# delay (Trcd).....................  -  4
Min RAS# active time (Tras)...................  -  8
Row precharge time (Trp)......................  -  4
Row Cycle time (Trc)..........................  -  11 Bus Clocks
Row refresh cyc time (Trfc)...................  -  16 Bus Clocks
Row to Row delay (Trrd).......................  -  03 Bus Clocks
Write recovery time (Twr).....................  -  03 Bus Clocks
Write to Read delay (Twtr)....................  -  02 Bus Clocks
Read to Write delay (Trwt)....................  -  03 Bus Clocks
Refresh Period (Tref).........................  -  3120 Cycles
DRAM Bank Interleave..........................  -  Enabled

DQS Skew Control..............................  -  Auto
DQS Skew Value................................  -  0
DRAM Drive Strength...........................  -  8
DRAM Data Drive Strength......................  -  2
Max Async Latency.............................  -  8 or 9
DRAM Response Time............................  -  Normal
Read Preamble Time............................  -  5.5
IdleCycle Limit...............................  -  256 Cycles or 128
Dynamic Counter...............................  -  Disable
R/W Queue Bypass..............................  -  16 x
Bypass Max....................................  -  4 x
32 Byte Granularity...........................  -  Disable(4 Bursts)
[/color]

 

 

==========[/size

[Clarity]

No, you misunderstand me. I understand how and why my ram is running 250 Mhz. I know what DDR500 is, what PC4000 is.

 

I thought I made it quite clear what my question was, but I suppose not.

 

I thought that you have to have your RAM running on a divider to get some high overclocks. I got 500 Mhz on an overclock of my CPU, but instead increased the speed which my RAM was running at before (200 Mhz/DDR400). I don't know why that is so, I would expect the system to be unstable at that point, and only to be stable at a configuration of 250x8=2000(200x10 default setup for opty 170). I tried 250x9, it ran stable, and I was suprised. Then, what I thought was pushing my luck, I ran 250x10, 5/4 ram divider, and it was also stable (for a few hours, didn't leave my computer on too long).

 

At this point, I was scratching my head. Most sigs, O/C database entries, etc. have people at 2500+ mhz on RAM dividers, yet I was running full RAM speed. I thought I had messed up my overclock somewhere, maybe my RAM timings were too loose?

 

After a day to mull it over, I think I just have a nice opty 170 stepping, with some high quality RAM. Either that, or I'm getting a misguided feeling that I need a Ram divider at 2.5 Ghz+.

[marcopolo]

Looking through the o/c database moset folk are running the 170 at 2.8-2.9+ which is why they need to drop to dividers. You are @2.5GHz so your ram is running at it's rated speed. Try pushing you CPU speed up then tell us if you need the dividers......

 

If 2.5 is good for you, It's bloody fast anyway so stick to what you feel safe with if you feel you cooling isn't up to it.

 

Marco.