Any dfi nf3 ultra-d user here? Did you experience 2-2-2-5 @ 1T issue on this mobo? My old school bh5 seem cant stable at 1T once the fsb over 220mhz even I pump it with high vdimm with the ddr booster. But once I changed to 2T, I were able to hit high fsb as now I'm priming 260 @ 2-2-2-5, 3.5v.

p/s: I'm using 711 official bios.

it worked well with my pair of utt before bro, hit d ceiling when d ram reach 33xMHz @ 2-2-2-5. i assumed u've tried diff slots, so it's either compatibility for old skool bh-5 or alpha timin issue.

do try out others bios but never try d stock one coz it sux...

thanks for the replied.

will try next time again as I need back to uni life now.

I thought it's quite normal for old school double sided BH-5 to be very hard to overclocked even with high voltage on dual channel 1T.

As mentioned, try to play around with the extra memory settings. Loose em a bit, and if not mistaken Tref=3120 is good for BH-5.

Try reducing the drive strength on it. That helps a lot. Did once 230Mhz 2*512Mb at 3.0v while max per ctick was 270Mhz at a dizzying 3.5v using booster

good guide ere' http://www.bleedinedgesupport.com/ocz/foru...175&postcount=7

you'd need to register if you want more info here http://www.bleedinedge.com/forum/showthread.php?t=5048

and here http://www.bleedinedge.com/forum/showthread.php?t=4443

This post has been edited by empire23: Jan 8 2007, 10:44 AM

or as usual.... check out dfi-street overclock database... you can refer to their timing settings

Thanks to DFI we can't view DFI-Street anymore.

forget about DFI-street, RGone had a new site here : http://csd.dficlub.org

well if u are running dfi lanparty ut nf3 ultra-d, there's no way u can do 1T @ 2-2-2-5 even if u pump in 2.9V of vdimm to the thing. u might want to try beta bios for overcoming that problem, but i doubt so even with beta bios u could run 1T with low latency. only successful way i've tried is to run divider, and if your ram could do 2-2-2-5, i see no problem with it running divider on your pc

found out with my hyper-x (BH-5) running dual channel (512mb) could hit higher speeds if i were to use 2.5-3-3-7@1T. yeah, the timing looks kinda sucky, but then again, there's higher speed to compensate for the timings.

also, the drive strength should be set to weak drive (for me, on my old nf3 ultra-d mobo) if u are to hit 220 and higher speed.

as a starting guide point for u, u should get A64 Tweaker which will give u ther recommended settings for the system that u have, then only u start to slowly tweak and test your new settings from that starting point itself. the safe way of rock stable test that i did for my old rig was to run memtest86t+, then proceed with superPI and then run prime95 and 3dmark at the same time. prime95 will work in your case, regardless of whether it's s-939(which is your mobo socket type) or s-754, but so far i couldnt get prime95 to run on dual core systems...

i've attached the zip file here, so feel free to download it. don't worry it is freeware, so there's no violation of the R&R so far...




Attached File(s)
 A64Tweaker_V031.zip ( 227.93k ) Number of downloads: 16

2.9V? why not 3.0V or 3.1V? nf3 ultraD got plenty of Vdimm

my previously owned khx bh-5 (2*256) able to do 250 @ 2-2-2-5 with 3.3v without any problem on this board. this board have 1t problem only when ram frequency exceed 27xMHz for 2*512MB modules.

This post has been edited by ah_khoo: Jan 9 2007, 04:10 PM

i'd rather stick to a lil bit lower speed than to stretch to that far...
mind u, my old mobo RMA 4 times already wor...even the warranty lady look at me also got pissed already...

1st mobo bought at viewnet, last me for 7 months...
after 1st RMA, lasted me 3 months
after 2nd RMA, lasted me less than 2 days
finally at 3rd RMA, she gave up and replaced me with a new spanking new mobo instead of those which just came back from RMA...

not really, this stick can did 268 @ 2-2-2-5, 1T (dual channel, pair with another bh5) prime stable on NF4.

maybe the mobo got 1T issue. just noticed that my friend help me got geil one TCCD, will try it and see how it performance on this mobo once I get the ram.

Just flashed into NF3UDC19 mod. bios. Noticed 32Byte Granularity & Blank Interleave are available in BIOS. Now priming 2700 with 166 divider, 225 @ 2-2-2-5, 1T. Will try over 220 @ tight timing 1T 1:1 later.



This post has been edited by gsan: Jan 13 2007, 12:01 PM

Hi Gsan did u still have your DFI NF-3 Ultra-D with u?

how is the condition now? with the oc??

nope, sold already as stated in my tradelist

@gsan,

how high u oc it with low timing?

you mean the ram speed? with the mod. bios, I think around 230 @ 2-2-2-5, 1T...cant remember well, but confirm sure cant go high.

IC.................. so i'll not go for tight timing like that