New Ultra-D; Can't hit 265fsb?

[jnick]

So I just got my new system up and running, and now I'm on to overclocking. First stop, seeing the max the board can handle.

I did this in the bios, which is 11/14 btw.

LDT/FSB - x3
CPU Multi - x5
RAM - 100Mhz
FSB - 200MHz

This of course sets my CPU to 1Ghz, RAM to 100mhz, FSB to 200 mhz.

Booted into windows, loaded up two instances of SP2004, using in-place fft. I loaded up clockgen, and started raising the mhz every 15 seconds or so.

Here's how I increased the fsb:

200 -> 230
230 -> 240
240 -> 250
250 -> 255
255 -> 260
260 -> 265

Upon hitting "Apply Selection" for 265mhz, core 1 failed instantly, and clockgen, the program itself, crashed, and threw me the error that wants me to click "Send" or "Don't Send".

So I set everything back to normally, and am awaiting help. AFAIK, DFI's should be able to easily do 300+.

Is it possible it errored because of how fast I jumped mhz? Possibly voltages?

LDT - 1.2
Chipset - 1.5
CPU - 1.3

I mean, as low as the speeds were (CPU - 1.3ghz), I doubt it's the voltages, however I don't know about DFI boards, so I figured I'd mention that.

Any help is appreciated.

Cheers.

[Repoman]

If you go too high on the HTT it will freeze or get video corruption, not necessarily fail prime.

Try booting straight from the BIOS

[jnick]

Will do, but what should I try booting at? 260, or 265 - where it crashed.

Btw, just so I learn things, I thought as long as you're under 1000HTT, it should be fine. 3x265 = 795 . . . should be fine; no?

I posted this exact same post over at DFI-Street, as I'm trying to get as many "solutions" as possible. However, I usually like to double check some "solutions" they offer, before going through with them. One member suggested that I should adjust some RAM timings, as regardless of the speed, the timings could hace a great effect on stability Is this true?

He suggested changing MAL to 8.0, DRAM Drive Strength 5, and the Read Preamble to 5.5 - Think it's worth trying?

Thanks!

[One_Hertz]

Will do, but what should I try booting at? 260, or 265 - where it crashed.

Btw, just so I learn things, I thought as long as you're under 1000HTT, it should be fine. 3x265 = 795 . . . should be fine; no?

I posted this exact same post over at DFI-Street, as I'm trying to get as many "solutions" as possible. However, I usually like to double check some "solutions" they offer, before going through with them. One member suggested that I should adjust some RAM timings, as regardless of the speed, the timings could hace a great effect on stability Is this true?

He suggested changing MAL to 8.0, DRAM Drive Strength 5, and the Read Preamble to 5.5 - Think it's worth trying?

Thanks!

Can;t hurt to try... And yes timings can have an effect regardless of mem speed

[Repoman]

Will do, but what should I try booting at? 260, or 265 - where it crashed.

Btw, just so I learn things, I thought as long as you're under 1000HTT, it should be fine. 3x265 = 795 . . . should be fine; no?

I posted this exact same post over at DFI-Street, as I'm trying to get as many "solutions" as possible. However, I usually like to double check some "solutions" they offer, before going through with them. One member suggested that I should adjust some RAM timings, as regardless of the speed, the timings could hace a great effect on stability Is this true?

He suggested changing MAL to 8.0, DRAM Drive Strength 5, and the Read Preamble to 5.5 - Think it's worth trying?

Thanks!

Yes those are good suggestions. I was gonna post the same thing but I got in the shower

Might as well do 8/6 though, 5.5 might still be too tight

[jnick]

I did what he suggested, and I ALSO noticed that if I ran CPU-Z (1.33.1) with Clockgen (newest ver), clockgen would ALWAYS crash. So, I just ran clockgen, and used it's clock viewer and was able to get the FSB to 316mhz, at the same settings as above. Definitely better than 260, however, that still seems low to me . . . Any other suggestions?

Temps:

CPU - 37*C
PWM - 42*C
Chipset - 46*C

Like I said, I used the same settings in the bios as I did in my original post, except I used the ram settings he suggested, and I did NOT use cpu-z at the same time of priming.

[Edit] When you say 8/6, that's for the preamble?

Thanks.

[Repoman]

Post a ss of your a64tweaker. Also set your divider to something more reasonable, more often than not lowest dividers will be worse or no difference between 150 or 140, or whatever keeps you at ddr400

Boot up at ~320 straight from bios though, better to do that than clockgen. And use a 7x multi

[jnick]

http://img236.imageshack.us/img236/9247/untitled1oa.th.png (http://img236.imageshack.us/my.php?image=untitled1oa.png)

Also - 7x for the cpu multi?

P.S. - If you can't see the writing, let me know and I'll just ss the program window.

[Repoman]

Your memclock is still 200 :confused:

[jnick]

No. I set everything back to stock. Then I saw you wanted a SS, so I took it at stock settings.

P.S. - The preamble says 6 in the pic, but in the bios it's really 5.5. Trying to change it, but now when I go into the bios the keyboard won't work . . . it just makes one never ending beep.

Fixed the whole BIOS issue. It actually was the fact that I set the MAL, PR, and Drive Strength manually. At one point, I couldn't enter the bios at all :(.

[Dave338]

Why do you want more than 315 FSB with a 170 ????

Raise your multi to 10 and find CPU max clock with a 166 divisor in the memory.
Theres no difference between 280x10 and 350x8 for the CPU, the thing on what you must put more much effort is in the RAM, not in the CPU-FSB

salu2.

[ozzimark]

Why do you want more than 315 FSB with a 170 ????
it may not be practical, but it's fun to know the very top end of your board. i was talking to jnick last night and helped him through a bit, seems that the very top end of his board is just a smidge over 420mhz :toast:

[Dave338]

Yes but is something unusable......

In any case, my SLI-D needs to bump Vdd (chipset) to 1,6v at some point between 290 and 295, I have not tested exactly yet, but 290 is stable at 1,5 and 295 not.

With 1,6 in chipset max FSB tested (at 1:1 with memory) has been about 315 to seek max stable SuperPI 1M on my TCCDs. I haven't looked for anything further than that. ;)

salu2.

[jnick]

Exactly - I wanted to find the max of my board, which appears to be 420mhz.

A friend of mine poped on AIM, and helped me out a bit. It appears setting MAL, PR, DRAM Strength manually is what locked up my BIOS, as now, with them on Auto, everything is fine.

Not sure exactly what the issue was, but now i know my board can at least do 420 . . . it's my CPU now that's holding me back, at a measly 2500mnz :(.

Time to start testing the RAM :).

Thanks for all of you help guys.

[CHaynes112]

First thing I would do is raise the VCORE (at least a little) just to see what happens... 1.3v is LOW :D