Help, I'm crashing after 2x1G install!!

I've had a rock-solid system with my Abit Nf-7 on NF2 chipset latest updates, D26 MantaRay Bios, ANTEC 480 P/S, Win.XP2 and 2x512 Corsair XMS PC3200 LLPT (BH-5 chips) setup. I also have an Audigy 2 sound card.
I ran the CPU at 200x11, it loaded me into games faster than 210 or 220 x 10 or 11.

About the only thing I do besides surf the net is play Battlefield 2 and some video editing.

Last night I finally went to 2 Gig sticks of OCZ Gold PC4000, rated at 8,4,4,3.
I purposely bought PC4000 thinking that I would be eliminating any potential memory bus bottlenecks as I overclocked my cpu. (it's an AMD 2600Mobile)

From previous playing around, the Chip seems to be good for at least 225 stable, but 235 if I don't game. CPU and Mem always ran 1 to 1.


I installed my new memory last night and crashed during regular gaming 3 times! I would blue-screen and have odd noises from my speakers. My only way out was a hard-reboot each time.
The memory is in the same two positions as my old Corsair, slot 2 and 3. I know that's odd, but, at one point I had tried the DDR Booster in Slot 1....

I doubt the memory is 'bad', so, i need idea's on where to start.
A friend of mine said that his Abit NF-7, NF2 was crashing his GAME APP when he tried to run 1G + 2x512. He's stable with only 1G and 1x512.

Should I adjust memory timing? Do I need a different Bios? Is the Abit NF-7 gonna play nice with my new memory???


Thanks everyone!

I've tried OCZ in my NF-7 also....... and couldn't get it to boot.

So I had to go w/Corsair. (2x512's)

I would say your mobo don't like the new memory off hand.

Run MemTest+1.86 & see how it pans out.

That way you will definatly know if it's the memory.
(by how many errors you get / or not)

Have you tried 1 stick alone to see how it runs? - any errors.

Simply put 1GB sticks won't run well on NF2 boards. What you'll want to do is find a bios that lets you disable CPC. With CPC disabled clear your CMOS and then go back in and manually set your timings to 3-4-4-11 and the voltage to 2.7V. Now give memtest a few loops through. If you get errors let me know which test # they showed up in

Here is some info on NF2 boards you may want to read
http://www.bleedinedge.com/forum/showthread.php?t=3032

Thanks to you both!

I need to look to see if I have MemTest any longer, but I did start a Prim95 test after reading Warrior's reply. I was blindly thinking it was a compatibility issue, but a test is certainly the right direction to go for now.

As it turns out, my first run of Prime95 and it's primality test FAILED. (Inputs didn't equal outputs) I tried that twice with the same results.

I tried the Torture Test (blend), and it failed within one minute due to a Fatal Error. (rounding)

I ran the Benchmark and it all went well from beginning to end.

I'm now running the ummm. Small FFT test, I think it's called. 8K and 10K and 12k have all passed, it's doing 14K now.

STEVEOCZ, I was hoping you'd see my thread. Thanks for chiming in. (I couldn't remember your name/ID ,but had read old posts from you in research)

I *thought* my D26 MantaRay XT bios was actually the CPC-Off version, but, now I'm not sure. I'll double check.
I think I loaded a CPC-ON BIOS at one time because it actually gave me better test numbers in SiSandra or something. I WILL ENSURE I'M USING A CPC-OFF version and then set things as you've suggested and retest.

Heya, Just letting you know I am running OCZ 2 gig kit stock settings (cas2-3-2-5, 2.6v, LINK ) @ 200mhz fsb without a problem on a two years old NF7-S 2.0. Was using the latest stock D27 bios, am now using D26 black mantaray at 1T timing (CPC ON). Gotten about 75 more 3dmark03 between those 2 bios. Ran prime95 for 37 straight hours on 203x11.5. I would go for more FSB but my 2600 barton is locked - it wont go past 2350ish mhz (at least I think the cpu is hitting the OC wall). And I hear this particular OCZ sticks arent very overclockable - prolly wont help ya but just saying NF7-S does run hella stable with this 2x1gig sticks.

I had 2x512MB pc2700 samsung double sided sticks @ 200 FSB with custom 2T timing bios rock stable. They werent stable with 1T unless I am running them at stock speed (333)

I did go through 2 sets of crappy brand (VT and Avant) pc3200 2x1GIG memory before I got the OCZ. The Avant brand wasn't stable @ 200 FSB with stock settings (3-4-4-8) - just hardlock the machine up. And the VT brand didn't even post. I think those sticks are OEM type. I didnt even try to use the 2T timing BIOS because I didnt want to keep them and they were from my work.

Dunno if this post will help but I got bored =) Good luck and hope you get your system up and running solid with 2 gig sticks soon.

Razzy, I'm glad you posted man. I needed to hear that there is at least some hope out there for 2x1G and my old-*** NF7 vanilla board.

Warrior, thanks for the linky!


Steve, and everyone else, I think the loading of new BIOS has done the trick. That, or using 2.8v.
My system was defaulting to 2.6v, I tried a new bios of d27_EDc18_1T and 2.7v but it was still no go. (not sure if that is actually CPC off or not)

Then, I used this Bios: D27_TaiPan_0.2_EB_ED_Bpl_3.19CPCoff_16.12.04, and went to 2.8V for mem because it's on the spec page. http://www.ocztechnology.com/products/memory/ocz_el_ddr_pc_4000_1024mb_gold_edition

Oh yeah, I also went ahead and changed my timing to 3,3,3,11 for now. Would like to go 2.5 CAS if possible. Going to '11' and 2.7v under old BIOS did not help.

**Right now I dont' seem to have any errors coming up where they used to so I believe it's fixed. yea!

Thanks for the input guys, You all get Gold Stars. I was seriously worried there for a bit!