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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nubie - Wednesday, January 13, 2010 - link
+1 on:"Isnt it much simpler to go to newegg and order the components with the most reviews and the highest ratings? I've never had any problems doing it that way."
-1 on " Anyone who has bought anything to do with DDR3 has wasted their money."
Performance isn't just measured in max memory throughput, (which triple-channel DDR3 certainly wins). But also in power consumption and future speed improvements.
I don't know what this DDR3 "waste of money" talk is. If you personally don't see a need to upgrade, then don't. Many use AM3 chips with DDR2 and have adequate performance. Many also use Core i7/i5/i3 systems and enjoy increased performance.
You can't complain about upgrades, after all DDR2 started at 400mhz, not a real upgrade from DDR at 400mhz, but look where it ended: with performance rivaling introductory DDR3. If we don't move forward when will it improve?
Ratinator - Wednesday, January 13, 2010 - link
I am having the exact same problem, however I am using OCZ-1600 RAM. The difference however is I have yet to upgrade the BIOS to the latest release. I haven't had time to flash the BIOS yet and here is what I am experiencing: At 1600MHz, it doesn't recognize all the RAM properly. At 1333 it does. I also have the same problem with hangs when recovering from sleep mode. If I remember correctly the most recent BIOS updates do provide better RAM compatibility and because you updated your BIOS before putting in the OCZ RAM, you may have gotten lucky.Spacecomber - Wednesday, January 13, 2010 - link
Enjoyed the article. I just thought that I would mention that I find it usually worthwhile to run a memory testing program, such as MemTest, for an extended period of time when I'm faced with a crash-prone computer. Often this will pick up the memory errors contributing to this problem. (You often can narrow down your finding to a specific module by running MemTest on each one individually, as well.) Most manufacturers have warranties on their memory such that they will accept the return of the faulty memory for a replacement (and they will accept your report of the MemTest results as evidence that the module is faulty).chusteczka - Wednesday, January 13, 2010 - link
Memtest errors are not exclusively related only to memory issues. I have often tracked memtest errors to a faulty PSU connection to the motherboard and unstable CPU settings in the BIOS. It is best to think of memtest errors as being system errors.yyrkoon - Thursday, January 14, 2010 - link
You will know when memtest will find your ram faulty. That is if you're any sort of competent with troubleshooting computer systems. Your universal statement is very much untrue. There is a reason why every competent PC repair person uses this test application.ImSpartacus - Wednesday, January 13, 2010 - link
Ok, call me young and feeble, but I cannot stand seeing an "extreme" CPU that isn't overclocked pretty hard. And it was done not once, but twice! I'll forgive the i7 860, as it has Bloomfield over it and doesn't cost a grand.You could have saved yourself $500+ on your daughter's machine by getting a Q6600 and modestly overclocking it to 3.00GHz (333x9).
And an i7 965? Really now? Do I even need to tell you how much money was wasted on that gem?
I would love to be in a financial situation in which I could buy a product that screams "4.0GHz" over and over again, but instead leave it stock to taunt my less fortunate brethren.
strikeback03 - Wednesday, January 13, 2010 - link
We occasionally buy high-end CPUs and leave them stock in our lab systems, because we need something fast and don't have the time to spend tweaking an OCed system. Also, he might not have bought all those CPUs at retail.cjb110 - Wednesday, January 13, 2010 - link
I think the post highlights a serious issue within the industry. Wishy-Washy standards! I shouldn't have to 'hope my supplier has a decent returns policy'If I put DDR3-1600 into a DDR3-1600 slot it should work whatever the rest of the system. Why didn't the memory work? Was it power? timings? what? what did jedec or whoever forget to nail down in the spec, that allowed these inconsistanties?
Its not just memory, I can't think of a single tech related standard that actually is a true standard.
I've had my NAS drive reject a SATA disk, because the manufacture doesn't support a certain command...wtf? I wasn't sold a SATAish disk, or a SATA (apart from feature x) disk, there was nothing on the box or anywhere at the point of sale to tell a consumer this.
Similarly most bluetooth phones, aren't. Or at least they actually only support an extremely limited part of bluetooth functionality (often just headset support). But the spec sheets says BT ADAP 2.1 or sommit equally vauge...nothing about not supporting remote sim access, file transfer or obex etc
strikeback03 - Wednesday, January 13, 2010 - link
I don't know about bluetooth on phones in general, but on Verizon in particular they limit what the bluetooth can do, apparently out of fear of theft of their ringtones or some other crap.glockjs - Wednesday, January 13, 2010 - link
it's refreshing to read an article like this tbh. shows the reality we go through and forget when we start tinkering with hardware haha.i just wanna say it makes me sad inside that your teenage daughter has a rig that crushes mine to play flash games and check myspace :( and you say "older" 4870 when i proudly rock a 3870 haha.
it seems to me that you use nothing but quality parts and still had a hardware issue with the ram. the fanboi in me jumped out when you were mentioning the brands ocz...corsair...as i thought to myself "why the f didn't he say g.skill". tbh the rigs i've built in the past years i seem to have zero issues with g.skill...just a thought.