NDUTU
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I have searched lots of forums about this issue and it has NOT been resolved yet , so it MUST be a BIOS issue and a future CORRECT bios should solve the problem.
Any feedback?
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KMoore4318
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/01 04:18:08
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There are a # of things that can cause memory to drop out, What it takes to resolve it will of course depend on what is causing it. it could be the memory itself, a bad socket, a bad conection, a inproperly seated CPU, a bent pin, a pin just not making good contact,a cooler not evenaly applying presure to the CPU, a weak IMC ( intagrated memory controler ) your settings, even operating system version. I-7's are known to have weak IMC's, which is why intel rates them for 1060 and not 1600, and I have found 12G to be more of a strain than 6, so I would only assume that 24G is more of a strain than 12. You can increse Vtt, to give the IMC a little more power. RJ has a thread on memory drop in the stickes, belive it's titled 3.99. Good Luck with your issue. As far as MUST, I would agree with your logic, IF every person using that BIOS was haveing this issue, but if anyone is running correctley, then it MUST be something else. Would reccomend at least +150, and possable +250 Vtt for 6 sticks regardless of memory size per stick. I needed +250 for 12G
post edited by KMoore4318 - 2010/09/01 06:32:47
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LightningStryk17
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/01 04:23:15
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my x58 board will sometimes boot w/ 4gig instead of all 6. What has worked for me is to shutdown and turn back on (not restart, that doesn't work).
Sometimes it takes more than one shut down and power on cycle (I think the most was 2 shut downs before it read all 6), but so far it eventually boots to give me all 6gig of memory.
However this problem seems varied so this may not work at all for your board.
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NDUTU
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/01 04:27:16
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It has to be a BIOS issue because at DEFAULT settings the board says: 24 Gb of memory INSTALLED (BUT only 16 GB usable) So the board recognizes that it has 24 GB of ram INSTALLED. And the board has 24 GB maximum as the FACTORY settings. So if some bios teaking is necessary for 24 GB of ram usable ---> it means that a NEW CORRECT BIOS update must solve all the issues...
post edited by NDUTU - 2010/09/01 04:55:56
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KMoore4318
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/01 04:37:06
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If you are sure that a new, Bios will solve it, than all you have to do is wait on a new BIOS. When it comes out; if it solves your issue, than I will admit that I am wrong, and stand corrected, if it does not, than you may want to look at the things I mentioned. If no one using that bios can run correctley, then logicaly it would stand to reasion that the BIOS is the issue, but if even one person is running corectley with that bios, than it would make more sence to look into what they have , or are doing, that you are not. The problem with using absolutes, is if there is even one exception to the rule, than the rule, can be deemed invaled. You wouldn't happen to be running Windows 7 Home Premium 64 bit, would you ?
post edited by KMoore4318 - 2010/09/01 04:52:34
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NDUTU
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/01 05:06:38
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I have Windows 7 ULTIMATE 64bit.
And I dont mean that a NEW bios update should correct the problem,
BUT a CORRECT bios update is the one that must solve the issues.
If the Board has a Maximum usable memory of 24 Gb as the FACTORY STANDARDS.
Then the board has to recognize ALL the 24 Gb of ram as DEFAULT settings.
Another thing is if you are an OVERCLOCKER and want to squeeze your system to increase performance, then you must play with all the parameters.
But as DEFACTO and FACTORY STANDARDS the board should recognize all the 24 gb of ram USABLE
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KMoore4318
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/01 06:41:18
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rjohnson11
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/01 10:15:39
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You read my sticky about this issue?: http://forums.evga.com/tm.aspx?m=479626 I've got 12 GB installed and all working just fine. The last person that told me that it was a BIOs problem was in fact bent pins on the CPU socket. The damage occurred during install (overtightening) of the CPU cooler.
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NDUTU
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/01 13:45:57
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I have 12 GB Corsair Dominator GT 1600 and they work PERFECTLY...
BUT I am trying my new (OCZ Reaper HPC) 24 Gb kit and THEN I have the Problem of -- ONLY 16 GB usable, and 24 installed...
Therefore is NOT a problem of bent pins because my 12 GB Dominator kit is detected Perfectly....
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rmmil978
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/01 15:40:04
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I believe the issue is memory compatibility. I was using 12 GB of Corsair that would only show 12 GB of RAM if I kept it clocked under 1333 MHZ. I RMA'ed the memory to Corsair, who replaced it with another set of 6 sticks (same product line, newer version). I kept all settings exactly the same, and now my memory will clock to 1600 MHZ, although I do "lose" ram upon a cold boot (2nd startup corrects the issue, same as a previous poster). Seeing as I kept every setting exactly the same, didn't change bios, didn't re-seat CPU cooler, etc. it points towards the memory itself. Not that the memory is "bad", just not compatible with this motherboard. To completely remove the issue I think I'll buy a different brand of memory, perhaps Mushkin (haven't seen any issues posted with that brand)? The fact that your different memory boots all 12 GB no problem seems to help prove my theory.
post edited by rmmil978 - 2010/09/01 15:42:44
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OV3RCLK4
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/02 13:12:30
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Mushkin Ram is the way to go! Have you ever gotten it to use all 24GB by running everything at stock, and running the ram underclocked? That would point out that it is a bios setting causing the drop in memory. Honestly I dont even know why you have 24GB of ram. If you want that much ram its best to not overclock. I dont see any need for having that much ram, even if you are doing some extreme stuff, 12gb should be good enough.
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NDUTU
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 02:37:44
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I have to render lots of VIDEO, I am not an Overclocker, so I set always the bios at DEFAULT. If the board has a FACTORY specifications of 24GB usable memory, I would like to be able to use ALL of my 24 GB as FACTORY DEFALTS, without any necessary Bios tweaking...
post edited by NDUTU - 2010/09/03 02:45:01
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NDUTU
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 02:45:15
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Why do you say that MUSHKIN is the way to go? Do you have any proof of 24GB MUSKIN running without any problems at default?
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_NickM
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 02:59:46
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Getting 24GB to run is most likely going to require configuration. First set MCH Strap to DRAM Ratio and TRL to +2. Then try increasing vtt and loosening the RAM timings, if its 8-8-8-24-74. try 10-10-10-30-74 to test. Make sure all the contacts are all good and that those sticks do firmly seat themselves in the slots and try sets of 12GB at a time to see if you can isolate anything to sticks.
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Buzzsaw_1950
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 05:02:53
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I's NOT a BIOS issue.
Lots of people have the same problem running 12GB
It's an all memory socket populated on an X58 chipset issue.
If it were a BIOS issue, it would be common to ONE manufacturer's BIOS.
Look on other manufacturer's Forums... They all talk about it.
I have 12 GB running just fine with memory and CPU overclocked and running 64 bit Win 7.
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realmad37
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 05:18:11
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Buzzsaw_1950
I's NOT a BIOS issue.
Lots of people have the same problem running 12GB
It's an all memory socket populated on an X58 chipset issue.
If it were a BIOS issue, it would be common to ONE manufacturer's BIOS.
Look on other manufacturer's Forums... They all talk about it.
I have 12 GB running just fine with memory and CPU overclocked and running 64 bit Win 7.
No you don't understand 12gb and 24gb can't run on the same settings because of different sizes and most of the time whenever you change the ram increase the size in this case by double then you would absolutely need to tweak BIOS to make it run stable , 24gb requires tweaking in BIOS inorder to get everything stable, First of all did you individually test all the memory sticks and DIMM slots? As most people say the RAM problem comes from many different factors, you could have bent pins, bad dimm slots, a bad memory stick, or the wrong bios settings, so first of all please try to eliminate the possibility that it's hardware failure, and the wrong BIOS settings, before you go saying that this is a chipset issue, I mean would you believe anyone if they told that it is? If so then why are so many other people are running they're RAM fine? In you're case I would believe that you have the wrong BIOS settings dialied in and you're ram is running unstable
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NDUTU
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 10:26:59
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realmad37
Buzzsaw_1950
I's NOT a BIOS issue.
Lots of people have the same problem running 12GB
It's an all memory socket populated on an X58 chipset issue.
If it were a BIOS issue, it would be common to ONE manufacturer's BIOS.
Look on other manufacturer's Forums... They all talk about it.
I have 12 GB running just fine with memory and CPU overclocked and running 64 bit Win 7.
No you don't understand 12gb and 24gb can't run on the same settings because of different sizes and most of the time whenever you change the ram increase the size in this case by double then you would absolutely need to tweak BIOS to make it run stable , 24gb requires tweaking in BIOS inorder to get everything stable, First of all did you individually test all the memory sticks and DIMM slots? As most people say the RAM problem comes from many different factors, you could have bent pins, bad dimm slots, a bad memory stick, or the wrong bios settings, so first of all please try to eliminate the possibility that it's hardware failure, and the wrong BIOS settings, before you go saying that this is a chipset issue, I mean would you believe anyone if they told that it is? If so then why are so many other people are running they're RAM fine? In you're case I would believe that you have the wrong BIOS settings dialied in and you're ram is running unstable
The possibility that it's hardware failure HAS BEEN ELIMINATED (Besides the system is Recognizing that there are 24GB of RAM but it only tells that of those 24 Gb I´ve got INSTALLED -- ONLY 16 are usable) I have NOT come across with anyone who is running 24 GB without problems. People that Don´t have problems are using Maximun of 12 GB ---- I MY SELF WAS RUNNING 12 GB Corsair dominator GT without ANY PROBLEMS. The isues come when you populate all the 6 Slots with 4GB Dimms, therefore I asume that there is a memory compatibility problem and that a CORRECT AND GOOD FUTURE bios update should solve the problem.
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sgtharry
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 10:52:41
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I can't understand why you are dead set agaist any Bios tweaking. You REALLY expect 24 gigs to be "plug and play?" nope.
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Shockjockey
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 11:08:47
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Just curious But Why are so many people adding 12 gigs or more of memory these days?I thought 6 gig was the performance sweet spot for these boards.
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KMoore4318
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 11:26:33
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sgtharry
I can't understand why you are dead set agaist any Bios tweaking. You REALLY expect 24 gigs to be "plug and play?" nope.
I can understand why he does not want to tweek the Bios, seting up a system can be too complicated for some, If he was able to understand the diferance in load demand from 6G to 24G, then he would be able to understand the need to adjust for that demand, The fact that he does not understand why, answers why it would be pointless to try to explain. I just do not understand why he didn's buy a pre built , or had a system assembled for him. It's a lot like buying a puzzle, and then complaining that it did not come pre assembled. or buying a Kit car and asking them to rush delivery, because you want to drive it as soon as it arives. If he wants to wait on a new BIOS to fix it, well, it's his time, his money, and his system, as unlikley as I feel a fix will be forth comeing, it's not my place to tell him not to wait. I even have my fingers crossed for him, and hope the results are to his satisfaction, But I would be unwilling to hold my breth, awaiting a fix this way, as I would surley suffuicate first. He is well withen his right to wait, just as we are all, as long as he understands, Hope does not guarentee Change; and Change is not always for the best.
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realmad37
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 11:39:00
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I guess he's really scared of doing the wrong thing, look if it's not hardware failure then you're wrong about bios, look GO AND EDIT YOU'RE BIOS IT WILL MOST LIKELY FIX YOU'RE PROBLEM, look many people here said to tweak bios and many have more experience than you in computer/bios and most likely had this problem before, this is an advice forum please follow the advice you're asking for instead of dismissing it and saying they're wrong and that's not the problem
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OV3RCLK4
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 11:55:16
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EVGA_NickM
Getting 24GB to run is most likely going to require configuration. First set MCH Strap to DRAM Ratio and TRL to +2. Then try increasing vtt and loosening the RAM timings, if its 8-8-8-24-74. try 10-10-10-30-74 to test. Make sure all the contacts are all good and that those sticks do firmly seat themselves in the slots and try sets of 12GB at a time to see if you can isolate anything to sticks.
Get going on what EVGA_NickM said, or get rid of 12GB of ram. Honestly I don't think anyone truly needs 24GB of ram, no matter how much video editing you do. All your editing will go just fine with 12GB of ram. Seriously.
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rjohnson11
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/03 12:51:55
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Please follow the advice EVGA_NickM has told you. If you don't feel confident adjusting BIOs settings then please call EVGA at 888-880-EVGA and see if they can walk you through the settings Nick recommend.
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NDUTU
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Re:24 Gb Ram -ONLY- 16 Gb Usable
2010/09/04 03:36:26
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I have switched motherboards and I am know using right of the box and everything set at DEFAULTS the - ASUS P6T DELUXE with 24 Gb usable memory (6x4 OCZ REAPER HPC 1333) I am having NO PROBLEMS with the usable 24Gb with the ASUS ( As a matter of fact I am writing this post with ALL the 24GB usable memory and the ASUS board). So I think that proofs my theory that the - EVGA 4 SLI Classified, has memory compatibility problems with the 24 GB OCZ REAPER HPC kit, and that it might be a bios issue . The ASUS is an older motherboard than the EVGA, the Asus came out in 2008 and the EVGA in 2009...... so that proofs my therory...
post edited by NDUTU - 2010/09/04 03:38:33
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