DFI NFII Ultra Motherboard won't Post after upping FSB

[RadixTwo]

I have PC 2100 ram, an Athlon XP 2500+ Barton, a Volcano 11+ fan and a 550 Watt Enermax CPU.

I upped the FSB to 250MHz and lowered the multiplier to 7.5 so the chip wouldn't be overclocked and the system didn't post. I opened the case, cleared the CMOS and powered up the system. No sign of life. No beeps and nothing on the monitor. I have tried clearing the CMOS a ton of times, tired the system without the video card (All in Wonder Radeon 9800 Pro) and without the RAM and still nothing. It didn't even beep at me. I tired setting the jumper on the board to 100 MHz and powered it up and still nothing. Everything else in the sytem works fine. How do I get this board to work again?

 

[Slash621]

250 FSB is way too high for your ram..... u need at least PC3200 ram to match your processor... get rid of that crap PC2100 and get some PC3200 buffalo or geil or something.... The ram is holding u WAY WAY WAY back

I'd be surprise if it booted at all at stock speeds.......

also 226FSB was the limit anandtech found for the DFI lanparty..

 

[RadixTwo]

I used a ratio of 2:1, the ram was running at 125mhz, its made to run at 133, so that wasnt the problem. clearing the cmos should fix it, there shouldnt be any problem like this.

 

[Slash621]

i promise you, drop the fsb down to stock and it'll work, fsb 200 is technically DDR400....... so your WAY WAY past the ramchips u are using which are only good for DDR266

 

[AngryGames]

run your RAM in 1:1 mode for the best performance.

Your PC2100 RAM is not going to cut it for a Barton2500 at all. I suggest getting something like the Buffalo/TWinMOS PC3200 or better.

 

[Tesseracted]

Okay, I have to clear up the confusion:

here is what I did:
I first got the system built.
then I powered it up. (YAY it works )
so with the components listed above I decide to up the FSB and lower the multiplier (Cause I am gonna soon be getting PC3500 ram)
I did some math and got 2:1 FSB:RAM ratio so my ram would run at 125MHz and not die.
So I entered all of the settings that I wanted:

My CPU was running at 250MHz FSB and 1875 MHz and it is the better 2500+ (the one that overclocks really well - I checked the steppings and when it was made)
My 2100 ram was running a 2:1 so it was running at 125 (instead of the stock 133 it was made for)
I didn't overclock the system (I just upped the FSB to far)

and now the board won't POST. I can't do anything and I tried clearing the CMOS every single way I know.

I do know how to overclock and the board is not damaged. I just can't get into the BIOS to set the FSB back down to 200 (and it was working at this speed

Anyways no that you know what happened, here is where I need some DFI help.


The board won't post. I can't get in to the BIOS to fix anything. It is not busted. I did not change any of the voltages. I have crapy ram. I live in canada and "they" are sold out of the 3500 stuff that I wanted (you know... the cas 2 stuff that comes from "Not In Canada" ). Anyways, I just want my system to work, I'll overclock later (and I do know how). How do I get into my DFI Lan Party NFII Ultra motherboard that won't post to work?

Thank you verry mutch for the help. I don't wan't to have to send this board back to DFI just so they can erase the BIOS and send it back to me.

PS. It is a kick ass board (I love it). 250MHz FSB was just too mutch...

 

[RadixTwo]

I, RadixTwo who is obviously using a differant PC accidently posted using Tesseracted's account. I'm having a bad day....

 

[AngryGames]

no problem, here is a couple things we can do:

1. completely remove power from the board (or kick the psu off so all the LEDs on the board die). Remove the battery. Clear the cmos jumper for at least 30 seconds, replace the battery, replace the CMOS jumper to original pins, power back on the board.

2. if that does not work, I can have DFI send you a new BIOS chip to replace the one you have.

3. RMA the board if nothing else. I know you dont want to RMA the board, and to keep from doing that, you can do a couple things. Test the RAM and the CPU in another board to make sure they didn't get fried. Completely remove the motherboard etc from the case and reseat everything. This has worked before for more than a few people. At the worst, you will have to RMA the board, as it sounds like the board couple be dead.

Its up to you which you want to do. Many customers have simply opted to have the BIOS chip replaced as it is easier than RMA'ing the whole board. Please let me know via here or PM if these lil tricks do not work and you wish to have the chip replaced or the board RMA'd. Thanks!

Travis

 

[RadixTwo]

The BIOS chip installed and worked like a charm. Thanks for all of the help.

DFI rocks!

 

[AngryGames]

=) glad to hear it!