Loyd's New Year - A Trio of Problem Systems
by Loyd Case on January 13, 2010 12:00 AM EST- Posted in
- Systems
The Constantly Crashing P7P55D
Now let’s consider a different problem, also with an Asus motherboard at its core.
I’d built a system running a Core i7 860 and the Asus P7P55D. The GPU installed was an AMD Radeon HD 4890. The system booted normally, and Windows 7 installed with no hiccups.
Periodically, the system would go into sleep mode – this was normal – but would then lock up. This was decidedly not normal. Occasionally, the system would lock up during multiplayer gaming sessions, too. Updating the BIOS didn’t fix the problem.
Then I came across several posts on several forums suggesting an incompatibility that was specific to the Radeon HD 4890. So I swapped in an eVGA 260 GTX Core 216 SSC.
Lockups still occurred, with the same frequency and symptoms. So the problem had nothing to do with graphics cards. Finally, I removed the memory – some early Corsair DDR3-1600 (though it was only running at 1333MHz) and swapped in some OCZ DDR3-1600 (also running at 1333MHz.)
The system has now been running smooth as silk over multiple gaming sessions.
These particular Corsair memory modules had actually given me fits in a number of different Intel-based motherboards, including P45, X48 and now a P55 motherboard. The Corsair memory is a 4GB kit, labeled CMS3X2048-1600C7DHX. What’s interesting about these modules is that when you drop them in an AMD AM3 based motherboard, the system seems to run perfectly fine. It’s quite a mystery, but illustrates how complex the issue of compatibility between components can be.
Lesson learned: nothing in particular, except to maybe to not trust forum posts, even multiple posts that may agree with each other. The graphics card wasn’t the problem here – once again, it was DRAM.
One other thought: despite rapidly falling DDR3 memory prices (or maybe because of rapidly falling prices), the state of the art in DDR3 modules seems to be evolving rapidly. This seems to create incompatibilities between specific motherboards and specific modules. I’ve had Kingston modules run great in Gigabyte motherboards and behave in a crashtastic manner in Asus boards. I’ve had OCZ memory behave badly in Intel boards, while running like a champ in eVGA X58 boards. Whether I adjusted timings, or ran in default modes, didn’t seem to matter.
How anyone can keep track of which modules run well on which motherboards at this point in time is a mystery. So the lesson here, I suppose is: if you don’t have a large supply of different modules and motherboards on hand – and most people don’t – make sure you buy your components from a reseller with a robust return and exchange policy.
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loydcase - Wednesday, January 13, 2010 - link
For what it's worth, my daughter doesn't just play flash games. While Torchlight is not a big system hog, she also plays games like NeverWinter Nights 2, Titan Quest, Sins of a Solar Empire and other RTS and RPG titles.glockjs - Friday, January 15, 2010 - link
you just named a slew of games that a 9800pro could easily handle :pFinally - Wednesday, January 13, 2010 - link
[quote]shows the reality we go through[/quote]I'd rather state it this way:
This article shows the reality PC-incometent people have to go through, on a regular basis.
I'd say it's pretty hard to find a non-marketing-related article on the web that recommends going for that upgrade option, especially if you have a basement full of hi-end hardware and close to limitless software supplies at hand like the author here...
Mugur - Wednesday, January 13, 2010 - link
Hi,Just a quick comment regarding the first case: that machine needed just a clean Windows 7 installation (or even a clean Vista installation). No need to replace an "old" quad core with a "new" dual core...
And never do an upgrade XP - Vista or XP - 7, or even Vista - 7... Just clean installations.
masterbm - Wednesday, January 13, 2010 - link
The reminded me of my own experience of that. I have nforce 3 board that had suffered from various it seemed every 3 or 4 months and Then would be fine. Well last week it turned out that issue came from sata controller that was no longer function like it should. But I I did replace the core(ram,cpu,motherboard) of the machine anyway. It is time retire it.svrmstr - Wednesday, January 13, 2010 - link
Thanks for writing this article! I've experienced what you’re talking about with the first system.I have a P5Q3 Deluxe with 2 GB Corsair memory, a Q9550 and a Radeon 4870. I must say that this motherboard is extremely quirky when it comes to memory. I had to return 2 pairs of Corsair RAM before I got a set that would post - each pair that Newegg sent me was different, because they were being discontinued almost as quickly as they were released. Even after I got the system to POST with the 3rd set, I encountered lots of memory errors, but these errors weren't due to bad RAM chips, as I discovered using MemTest86+. I should mention that at the time, the RAM was on the QVL list, although that list has since gone through numerous revisions.
I spent a solid week researching and learning everything I could about the motherboard, quad-core CPUs and overclocking. (I wasn't trying to overclock at first, but such information would help me understand exactly what had to be done.) A few articles on AnandTech that dealt with Asus motherboards, overclocking and BIOS settings definitely pointed me in the right direction. Along with a couple of lengthy guides to overclocking with quad-core CPUs from other sources, I gained enough knowledge to make the system stable.
In the end, it involved fine-tuning the BIOS, setting just about every option manually. This meant many long hours of trial and error. As it turned out, the CPU settings required the most tweaking. Getting the right VCORE, PLL and GTL voltages, plus adding a 100ns delay really made a difference – the northbridge settings were also sensitive. It wasn’t a matter of faulty RAM, as was the symptom, rather instabilities with the system as a whole. Individually each part performed flawlessly, but put them and you create a monster time sink. Notably, when I swapped in a Core 2 Duo E8400, all the memory errors went away. That’s when I decided to really focus on the CPU settings. Honestly, this motherboard doesn’t have reliable automatic settings, especially when you’re using a Core 2 Quad. Let me add that I’ve used every BIOS revision since 1702 and they’ve all performed the same for me.
Now I’m running at 3.4 GHz core speed, 1600 MHz FSB and 1600 MHz memory. I wanted so badly to give up in favor of building a newer, better system, but it just wasn’t in my budget. I hope that my story isn’t too long; I wanted to share what I could. Here are links to some of the articles I read:
http://www.ocztechnologyforum.com/forum/showthread...">http://www.ocztechnologyforum.com/forum...354d2fa1...
http://www.ocztechnologyforum.com/forum/showthread...">http://www.ocztechnologyforum.com/forum/showthread...
http://www.ocztechnologyforum.com/forum/showthread...">http://www.ocztechnologyforum.com/forum...354d2fa1...
http://www.anandtech.com/mb/showdoc.aspx?i=3309&am...">http://www.anandtech.com/mb/showdoc.aspx?i=3309&am...
http://www.anandtech.com/mb/showdoc.aspx?i=3129&am...">http://www.anandtech.com/mb/showdoc.aspx?i=3129&am...
http://www.benchzone.com/page.php?al=Asus_P5Q3_Del...">http://www.benchzone.com/page.php?al=Asus_P5Q3_Del...
nicknomo - Wednesday, January 13, 2010 - link
I've had the same experience.. I've never really ran into memory that didn't work in a machine after some degree of tweaking in the BIOS.I think that is an important lesson to learn, and a much better solution then constantly RMA'ing parts.
Just by looking at the reviews in newegg, I can see that most RAM incompatability issues seems to happen with modules that require higher voltages. With the advent of O/C'ing, a lot of manufacturers make memory that will only boot .2 or .3 volts above what a normal DIMM operates at.
Other problems usually stem from the motherboard reading the SPD of the modules and incorrectly setting the timings. Either way, bumping up the voltage on the memory and setting the timings and clock speed manually will often fix 99% of these problems..
yyrkoon - Thursday, January 14, 2010 - link
I have. That is, whenever I get CRC errors, or corrupt files, the first thing I do is check the BIOS settings for the memory to make sure they're correct. When I build a system the first thing I do after the first POST is to check to make sure these settings are correct. timings, as well as voltage.I have however had bad sticks of memory from certain manufactures that I now try to avoid like the plague. They have good parts too, but I would rather not play a guessing game when trying to set up a new system.
Even my own favored brand rarely seems to relay the proper information to many a motherboard, so perhaps this is where / why I picked up this habit.
yonzie - Wednesday, January 13, 2010 - link
A few years ago I had a pair of MSI 945G mATX boards heading for a server.The harddrive I planned to use for one of the servers consistently killed the board.
It worked fine in other boards, the MSI board worked fine with other drives.
The combination of this particular drive and motherboard model consistently killed the board dead. Not helping troubleshooting, it worked fine on the initial boot, then it was gone.
biostud - Wednesday, January 13, 2010 - link
One of my friends had the same problem with the i7 and corsair memory, to get the system stable the memory had to run 1066Mhz, otherwise it would crash at random.