Why doesn't my new RAM work with my ASUS M4A785TD-V EVO motherboard?

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Discussion Overview

The discussion centers around compatibility issues with new RAM modules installed on an ASUS M4A785TD-V EVO motherboard. Participants explore potential reasons for the motherboard failing to boot after the installation of 16 GB (4x4) RAM by Crucial, including compatibility concerns, faulty modules, and BIOS updates.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Exploratory

Main Points Raised

  • One participant reports that after installing new RAM, the PC fails to boot, suggesting a possible compatibility issue.
  • Another participant recommends testing each RAM module individually to identify any faulty sticks that might prevent the system from booting.
  • A participant points out that the specific RAM kit may not be supported by the motherboard, referencing the motherboard's memory support list.
  • Concerns are raised about discrepancies between Crucial's system scan results and the motherboard's compatibility list.
  • One participant shares that updating the BIOS resolved the issue, allowing the RAM to work after initially failing to boot.
  • Another participant mentions past experiences with different RAM brands, indicating that some modules may be inherently faulty despite compatibility claims.

Areas of Agreement / Disagreement

Participants express differing views on the compatibility of the RAM with the motherboard, with some suggesting that the RAM is unsupported while others reference system scan results indicating compatibility. The discussion remains unresolved regarding the reliability of the RAM and the effectiveness of BIOS updates.

Contextual Notes

Participants note that the memory support list for the motherboard is outdated, which may contribute to confusion regarding compatibility. There are also unresolved questions about the reliability of the RAM modules and the effectiveness of troubleshooting steps taken.

TSN79
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My motherboard is the ASUS M4A785TD-V EVO. I decided to get som more RAM for it, and went for 16 GB (4x4) by Crucial:

http://www.crucial.com/uk/store/mpartspecs.aspx?mtbpoid=E8F809A0A5CA7304

After installing it my PC didn't want to boot. It revs up and all, but the screen never gets a signal. I thought I might have missed something regarding compatibility, but from what I can find it should work with my board. I tried it a couple of times, but to no evail. Finally I put back my old ones (also by Crucial (2x2), and everything worked great.

Ideas anyone?
 
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TSN79 said:
My motherboard is the ASUS M4A785TD-V EVO. I decided to get som more RAM for it, and went for 16 GB (4x4) by Crucial:

http://www.crucial.com/uk/store/mpartspecs.aspx?mtbpoid=E8F809A0A5CA7304

After installing it my PC didn't want to boot. It revs up and all, but the screen never gets a signal. I thought I might have missed something regarding compatibility, but from what I can find it should work with my board. I tried it a couple of times, but to no evail. Finally I put back my old ones (also by Crucial (2x2), and everything worked great.

Ideas anyone?
Their customer support couldn't help? They even have live chat available for support by a tech.

http://www.crucial.com/contact/

If they figure out the problem, it would be great if you'd post the solution here for others.
 
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Try installing just one memory module at a time (in the correct slot, of course - see the motherboard documentation).

Ir could be one of the four modules is faulty and is stopping everything from working when you install all four of them.
 
http://www.asus.com.au/Motherboards/AMD_AM3/M4A785TDV_EVO/#MSL
Memory Support List.

The BLT4CP4G3D1608DT1TX0BEU 16gb kit is not supported by the motherboard.

BL25664TB1608.K16SF(XMP) only supports one Module at a time, the others in the same brand support upto 4.

By chance you may have purchased the only ram on the market not to work with your computer or as stated above you may have one or two dodgey sticks that you need to return.

Really comes down to testing the ram sticks one by one, Boot the pc with one stick at a time, going through them to find if it doesn't boot up with one of them, narrow your search down and you may be able to get 3 of them working (single channel) until you get a replacement.

You can use windows 7's built in memory test by spamming F8 while your computer is turning on and selecting diagnostics i think, there should be a mem test type program in there that tests your ram, judging by what's happening though you will only need to go through them one by one to find the faulty one, as its stopping the rest from working.
 
No success with the stick as of yet :(
r4z0r84 said:
The BLT4CP4G3D1608DT1TX0BEU 16gb kit is not supported by the motherboard.

BL25664TB1608.K16SF(XMP) only supports one Module at a time, the others in the same brand support upto 4.

I see that my sticks aren't on the list (it's from 2009), but why is it that when using the system scan feature on Crucial's site, it finds that my sticks should work fine with my motherboard?

How come you commented on the BL25664TB1608.K16SF(XMP)? Is it the "closest" to what I have bought?
 
Latest news: Sticks are working :)

Turns out I had to update my BIOS to the latest version. After doing so I installed the new sticks again, but the PC still wouldn't boot. I removed one, and then another, and when attempting to boot with only two sticks, it suddenly worked. I then put back the first stick I removed next to the other two, and it still booted. So I put the fourth one back as well, and everything was still good. Why it didn't work at first I have no idea, just thought I'd post the happy ending here :)
 
TSN79 said:
Latest news: Sticks are working :)

Turns out I had to update my BIOS to the latest version. After doing so I installed the new sticks again, but the PC still wouldn't boot. I removed one, and then another, and when attempting to boot with only two sticks, it suddenly worked. I then put back the first stick I removed next to the other two, and it still booted. So I put the fourth one back as well, and everything was still good. Why it didn't work at first I have no idea, just thought I'd post the happy ending here :)

I was tempted to offer that as a solution, but figured you get there anyway. In general, if something fails to work first close all programs and try again. If that doesn't do it, reboot. If that doesn't do it, disconnect all usb ports and reboot. If that doesn't do it, contact the manufacturer and go back to step one. For ram, that means adding the additional step of removing ram sticks one at a time until it does work.
 
TSN79 said:
No success with the stick as of yet :(


I see that my sticks aren't on the list (it's from 2009), but why is it that when using the system scan feature on Crucial's site, it finds that my sticks should work fine with my motherboard?

How come you commented on the BL25664TB1608.K16SF(XMP)? Is it the "closest" to what I have bought?

Yes they are the closest to the ram you purchased that existed on the day of release of your motherboard, from seeing your other comments good job on updating your bios, that was also my next point of call.

I have had issues with Kingston Hyper X ddr2 ram before, all other ram had just worked perfectly, updating the bios did not fix the issues i was having and turned out the series was just faulty to begin with. went back to generic ram and everything just worked. it overclocked better as well sadly.
 

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