Hi, i have a big problem with my epox 9nda3+. It conceirns the RAM.
Until a few days ago, i ran my OCZ PE rev 1 @ 200 mhz, 3:2 divider, 2-3-2-5 timings, 2.6 V. I have a very OC-able 3000+ , which is able to run 300 x 9 @ 1.5 V
Since these babies would'nt overclock very much i decided it's time for a memory upgrade for a much needed improvement in performance.
I went for the Corsair 4400c25 Platinum (2x 512), which run 2.5-4-4-8 by SPD. Oh well, at least in theory. The mobo would post, windows began to load, but upon entering it, the system rebooted. I tried all sort of voltages, timings & 1T / 2T, but the damn thing wouldn't load windows. Oh, i forgot, these things were pretested & ran 2.5-3-3-7 dual-channel @ DDR 602, 2.7 V.
When i took one module out, everything went perfect, i even reached DDR606 @ 2.5-4-3-7, memtest & windows (prime 95 blend) stable.
Thing is the best i could achieve in dual-channel, 1T, was 2.5-4-4-8 @ 200 mhz
Not the performance increase i'd hoped for, that's for sure.
Ok, so i replaced them with some corsair twinx 3200c2pt, which did (PRETESTED) ddr 610 dual-channel, at 2.75 V, memtest & win stable. These things have TCC5 chips on'em.
Tried them out, 215 mhz 2-2-2-5 @ 2.6 v, no problem. DDR 240 mhz , 2.5-4-3-7, memtest & windows stable. Then i got kinda lazy, and did'nt go into windows anymore. I just checked them with memtest (at higher and higher frequences)
I got to 290 mhz memtest stable, would'n go any higher. But when i tried to run windows... oh my god, they gave error after error.
The highest frequency that is windows stable (prime blend) is 240 mhz 2.5-4-4-8, a far cry from the ddr610.
I'm getting kinda desperate, and i have no clue why this is happening.
Let me tell you you the test setups.
No. 1 is my computer and No. 2 is my computer with another mainboard (on which the RAM was pretested). i just cannot comprehend what is going wrong with my board
No. 1 :
a64 winnie CBBHD 3000+ @ zalman 7700 CNPS al-cu
epox 9nda3+ / April Bios / passive chipset cooling ; active cooling on the ram
powerstream 520 W
80 gig WD
GF 6800GT
No. 2 : Abit AN8 (nforce 4)
Please, if you have any suggestions, please share them (replies like "Get a new board" will be ignored ).
Thanks in advance and sorry for the long post.