EPoX 9NPA+SLi

keitaro

Member
Jan 30, 2003
151
0
0
After 12 hours of Prime'ing, I've considered my current setup to be stable. Although whether or not that's entirely true remains to be seen. However, the road to this setup wasn't without any snags. So here I'll document some of my initial experiences as well as my personal findings.

It's a little odd that there aren't many vendors selling this particular board. The amount of things included in this model is rather interesting, as it includes the Power Pack kit that has a magnetic screwdriver 'pen' and a thermal probe. ZipZoomFly and MWave both carry this motherboard for decent prices although overall cheapest is from ZZF, if they have it in stock.

The board's design is just like what reviewers have mentioned: the power connectors are placed in odd/bad locations. Navigating the power cable may be troublesome but be sure that it extends long enough to reach it. Otherwise, you may find yourself shortchanged. Everything else looks normal, as to be expected when you go through so many motherboards over the past several years.

Skipping straight to the overclocking findings, I've previously used a MSI K8N Neo2 Platinum to achieve a 2.4GHz clockspeed with the Athlon64 X2 3800+ processor. This may not seem much to you but it is a modest and simple overclock to gain additional performance out of one's processor. The processor's normal voltage is 1.40 as specified by their OPN documentation and markings. At stock speed, the processor runs as normal but I did not take into account of Prime'ing and Memtest86 to test its stability. Given that I have done this before on the previous motherboard at stock speed, I felt that it was not needed anyway.

I jumped straight to 2.4GHz by bumping the FSB to 240MHz, setting the HT multi to 4, and leaving the CPU voltage at default. It boots to Windows but failed Prime. Memtest86 showed no errors after 2 test runs. Looking at the BIOS, the CPU voltage can be incremented or decremented (up to -0.1v) in 0.025 steps. The first step showed slight improvement, but still failed when Prime'ing. At +0.05v, stability begins to show but unfortunately failed after some load was placed in addition to Prime'ing. Strangely, this failure was after a full session/run of playing Battlefield 2. However, the crash I had earlier when playing seem to be one of the signs that it wasn't truly stable, something that I didn't take into account before. Although that's just speculating.

As of now, the processor is now running with a +0.075v adjustment from stock voltage and 12 straight hours of Prime'ing returned no errors. This also includes using uTorrent for seeding, an X-chat session with 8 IRC networks connected, gaim, and Media Player Classic running an AVI on infinite loop during the 12 hour test period. While more can be done to place additional load, I do not see what else that can be done to possibly force any instability.

As additional information, memory clock was forced at DDR400 with no modifications to DRAM timings that the BIOS provide. No additional tweaks were made since then as the goal was to retain a 2.4GHz overclock with as little tweaking as possible. Temperatures were not taken yet as the system is slowly getting softwares reinstalled. I'll update as necessary to provide these information.
 

keitaro

Member
Jan 30, 2003
151
0
0
Simple update to add in some temperature numbers... at idle, the CPU reads out at 34C... although that's partially due to the cooler ambient air of winter. Upon load, the temperature jumps to 40-ish or so but I have yet to gauge an exact number. Also contributing to the lower temperature is the routine of clearing out collected dust particals on the heatsink itself. The heatsink looks better when there's no dust blocking the airflow. *grin*

I plan to report back in about two weeks when I get a pair of new RAM in. There's nothing wrong with the current pair right now. However, I blame EA/DICE for creating such a resource hogging application that blows outta proportions if you do not have 2GB of RAM. The planned pair is Gigaram's 2GB PC3200 kit. Comparing several other kits as well as the spec numbers, this pair is looking to be the best 2GB value you can get right now. If you play the same game as I do, yet have yet to upgrade to 2GB, I strongly suggest getting this pair now before the market dictacts that the price ought to be higher.
 

keitaro

Member
Jan 30, 2003
151
0
0
Having gotten the RAM earlier than anticipated, I have them installed and running. However, I have found that with a little trial & error, I can set a certain memory divider after all. But this isn't very well documented since the option is there under a different name.

In the Power BIOS section, there's an option named Memory Frequency which I had originally thought is something that can lock the memory speed. It turns out that this doesn't work "as advertised." At first, with my Crucial pair, CPU-Z would still report the memory running at 240MHz, even though I had originally specified that the memory be set at 200MHz/DDR-400. Even the POST screen would report something similar, but I didn't pay much attention to that. After getting the new memory installed, I went ahead to check the new timings out in POST, which strangely didn't report the same as it originally was spec'd at: 2.5-4-4-7. As a trial run, I went into the BIOS to set the Memory Frequency to 166MHz/DDR-333 and rebooted to view the POST screen. To my surprise, POST reports the memory clocked at 200MHz with a slight change in timings. I then manually set the timings and rebooted to Windows, fired up CPU-Z, and the Memory tab says the FSBRAM ratio is CPU/12 with a operation frequency of 200MHz.

I was never aware that this option can also control the memory divider. But knowing this, I plan on seeing whether or not this new pair of memory can be run in 1:1. So far, the 2GB runs and I haven't a single problem as of yet. The amount paid for a pair of 1GB sticks with decent timings makes this perhaps the best buy with the best performance/timing compromise for 2GB. As a side benefit, Battlefield 2 runs smoother than before. Yet I cannot help but wonder if this is all part of the hideous trap set forth by EA/DICE... but I digress.

Again, I plan to report back my findings on running the memory at 1:1 as well as finding out what timing is currently the best. Since Gigaram never mentioned what voltage the memory should run at by default, I have manually set the default to be 2.6v. I do hope that this'll be enough when I run some tests.
 
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