Thanks for the reply Giranda, yeah our systems are very alike. I find i difficult to belive that with a 500mhz memory, and watercooling I cant hit 1000 FSB. Anybody got any suggestions for me?
K I am getting real sick of this bullsh!t. Can't get this system past 210 FSB, or 2300MHz. Tried 1:1 with raised mem and core voltage, tried underclocking mem to 333 in bios, then raised fsb and played with multipliers, and voltage, all to no avail, either hangs on boot up, or boots to desk top and freezes. This is ridiculous! SOmeone help me, suggestions on how to go about this. I am running 105 bios, and WIN XP SP2
Originally posted by: Shaga
Now using 240x10 at 1:1. Is that good enough? What do you think?
Originally posted by: Lightingguy
Hey Payto,
I'm OCing a 3200+ with cheap RAM. I get 2.63 GHz and my RAM runs at 219 MHz. Your results may vary, but here's the relationship of FSB speed, Multiplier, HT Multiplier, RAM setting, and RAM speed:
FSB x Multiplier is CPU speed (260x10=2600 MHz.)
HT multiplier takes FSB (normal is 200 MHz) and multiplies for HT speed (200x5=1000MHz is normal)
RAM setting (DDR266, DDR333, DDR400, DDR466, etc.) uses a ratio to take the FSB speed and multiply it by a fraction to set the RAM speed. Those settings are as follows: (only listing a few key ones)
DDR 400 (PC3200 RAM):1/1
DDR333 (PC2700 RAM): 5/6
DDR 266 (PC 2100 RAM): 2/3
In other words, if you set FSB at 260 and RAM at DDR400 (1/1) you get RAM speed of 260 MHz.
RAM speed is the product of FSB and the ratio determined by the RAM setting.
OK, so what do you need to do? First, make sure you have the latest BIOS. Then, you may want to try some setting that give you high CPU speed, but lower RAM speed, and keep the HT speed near 1000MHz.
What works for me is 263 FSB, x10 multiplier, 4x HT (1052 MHz HT speed), RAM at DDR333 (263x5/6=219 MHz @ 2.75v) . My CPU voltage is only around 1.46v. In addition, I have set the memory timing to 1T (that really seems to help performance).
Your possible top CPU multiplier is 11, so here are some possible combinations which may be OK:
FSB: 220 CPU Mult: 11 (2.42 GHz) HTT Mult: 5 (1100MHz) RAM: DDR400 (1/1 FSB) RAM Speed: 220MHz
FSB: 240 CPU Mult: 11 (2.64 GHz) HTT Mult: 4 (960 MHz) RAM: DDR 333 (5/6 FSB) RAM Speed: 200 MHz
FSB: 250 CPU Mult: 11 (2.75 GHz) HTT Mult: 4 (1000 MHz) RAM: DDR 333 (5/6 FSB) RAM Speed: 208 MHz
You get the picture. You can work with higher FSBs and lower multipliers, or vice-versa. The math is pretty easy - read the OC How-tos, use a good power supply, and have fun!
Originally posted by: govern1
Fumunda, my Maxtor DiamondMax 10 (16 meg) hd is intermittently detected by the Nvidia onboard sata controller as well, but only when plugged into controller #2 (sata 3 or 4). If I have it connected to sata 1 or 2, it is detected just fine (with NCQ disabled). I have not tested the SI sata ports, though.
Shawn
Originally posted by: RallyKid
Thanks for the reply Giranda, yeah our systems are very alike. I find i difficult to belive that with a 500mhz memory, and watercooling I cant hit 1000 FSB. Anybody got any suggestions for me?
Originally posted by: ajmiles
Yes, I do have NCQ disabled.
But at the moment I can't remember where I turned it on (before it corrupted my drive) to know where to turn it off.
Originally posted by: RallyKid
Thats essentially what I want JMag, higher mem speed, and as long as I have memory that is rated at 500MHZ, why not hit that atleast, right. Instead I cant even hit anything above a FSB of 210. i hope this is just an issue with the bios, and settings.
When I tried overclocking it past 210, and it actually did not freeze, the scren freeze for a second, then go black, and refresh and it would be fine, and it did that every 2minutes or so. Anybody get this.
Also sometimes in SLI mode i get just the top half of the screen that appears, and the bottom does not, as if the other car was not working.
Originally posted by: DavidHull
Problem: setting CPU voltage to 1.5625 or lower gives 1.46v to cpu. 1.575 bumps it to 1.585. Newest BIOS. Tried resetting with clockgen, but no results (ASUS Probe and CPUID show no change, and the temps stay same, they always rise when overvolt any CPUs). Need a setting that gives me proper 1.52-1.55v. 1.585 takes CPU over 50C, and 1.46 doesn't run stress tests at 2.7GHz.
Yes, it is a problem with the board/BIOS. Mine does the same thing and it is a pain heatwise.
everything is fine except when I try to run at 250 x 10 4HT, it wouldn't work my RAM is 3-4-4-8 DDR 500 ram and i figured that i can run 250 x 10... but system wont POST... any ideas?
There is definitely a problem with this board when trying run memory much over 240 mhz, even if the RAM is rated for a higher speed. Run it at 240 mhz, run memtest, then leave it there until Asus, hopefuly, releases a fix. At least, that is what I'm doing, but if they haven't fixed it by the time DFI releases their board, then some lucky bastard on Ebay is going to get a hell of a deal on a barely used A8N SLI Deluxe.
I have a question about the A8N-SLI (as well as all NF4 SLI boards, most like): Can I use the two 16X PCI-E slots for two completely different video cards, and simply use both of them in non-SLI mode? I'm in the middle of buying a new computer, and I've been waiting for the new set of motherboards and video cards to come out. I was previously set on getting an NF4 Ultra board, but if could buy an A8N-SLI now along with a cheap PCI-E video card, then add an X800XL later when they're out, there's no reason for me to wait. I don't have much interest in the actual SLI feature, but just being able to use two video cards would be great.
Originally posted by: iscsidude
Just curious.
After following this thread for a month, do any of you have successful implementations without overclocking. I'm just considering this Mobo for things like MS Office and my daughters occasional games.
Also, does anyone have a resolution for the 8K RPM fan on the NF4 chip?
Loud will not work in my home/office.
I'm currently using a PC Power and Cooling Supply. It has never failed after 5 years, however, the noise is something I can do without.
Thanks for any input.
Originally posted by: harvgill
Are you using a Sound Blaster by any chance. I cannot use the beta bios at all while I have the SB installed. If I'm lucky enough to get into windows, the Marvell does dissapear.