1 RAM stick missing all of a sudden?

[jimbojames]

Hi All,

I am currently in the process of setting up my new build and I'm on day 2.

Yesterday, I had all 4 sticks of RAM (Dominator 4GB 1866 quad) and all was well.

I had to re-jig some things in my case so I took the RAM out but when I put it back in, it's only showing 12GB total and not 16GB as it was before removing it. I can see all 4 sticks in the BIOS but the total GB is wrong in the BOIS and Windows. All settings are stock and I have tried all combinations (I think) with the RAM in the relevant slots.

I have a Rampage IV Extreme mobo with a 3930K cpu if that helps.

I've been scratching my head for over an hour and I'm now out of ideas.

Does anyone have any ideas?

Thanks in advance,

James

 

[jimbojames]

UPDATE

It seems as it it doesn't like what ever stick I put in slot B1. I have just rechecked the BIOS and in the ASUS SPD formation tool, it does show that there is RAM in slots A1 B1 C1 and D1 and not A2 B2 C2 and D2 which is correct so I cant work out why it wont actually use it.

Just tried to flash the BIOS and that didn't work.

The only other difference from yesterday is that I changed the chassis fan and the 2 H100 fans to ones with LEDs in and PWM 4 pin and I have also added 2 2TB Caviar Green HDDs. Could that affect anything? (clutching at straws now)

 

[tinytomlogan]

Make sure its fitted properly first. Asus clamps can be an arse, otherwise the slot might be dead.

 

[airdeano]

swap that stick out into the "dead" hole with another stick and retest.

this will give you bad slot of stick and contact manufacturer/reseller

accordingly.

airdeano

 

[jimbojames]

Make sure its fitted properly first. Asus clamps can be an arse, otherwise the slot might be dead.

Thanks for the advice Tom. What are the chances of a dead slot on a motherboard like that? I assumed that with it being the type of board it is, the quality would be excellent.

 

[Ru5ty_t00l]

a dead slot can happen to any mobo.

that's why u got a warranty for that

 

[Rastalovich]

(I'll start off by saying I am prejudice against ASUS mobos, that's just personal)

Oh god, this reminds me of the nightmare that was the p79x9 or whatever it was called.

8 slots, all full, only some showing up.

Turned out 1 of the pairs just would-not work together in the mobo, and we're talking about a kit. Individually the memory was fine, everywhere else it was fine. But in the mobo 2 of the sticks just would-not get along.

Fortunately Scan were sympathetic.

Isn't there a memory test of sorts built into these mobos ? I can remember something like having to hold down a memory button when changing it or something, looking for leds to change, then testing again - and having to do it every freaking time !!!

(not my purchase)

 

[jimbojames]

(I'll start off by saying I am prejudice against ASUS mobos, that's just personal)

Oh god, this reminds me of the nightmare that was the p79x9 or whatever it was called.

8 slots, all full, only some showing up.

Turned out 1 of the pairs just would-not work together in the mobo, and we're talking about a kit. Individually the memory was fine, everywhere else it was fine. But in the mobo 2 of the sticks just would-not get along.

Fortunately Scan were sympathetic.

Isn't there a memory test of sorts built into these mobos ? I can remember something like having to hold down a memory button when changing it or something, looking for leds to change, then testing again - and having to do it every freaking time !!!

(not my purchase)

Yes there is a test and it passes and the fustrating thing is that it was registering all 4 sticks for the first 24 hours.

Anyway - RMA process started on the mobo. I rang ASUS (uk call center - phew!) and ran through what I had done to diagnose and they confirmed it must be faulty. As the board is within 28 days, they asked me to go back to the reseller, which I have, and it looks like I may have a new board by tomorrow.

Shame I can't sing the praises of Corsair! I have a H100 that is making a grinding noise and so I raised an RMA on thier site 2 days ago and I still havent heard back! I have also spoken to the supplier to see if they can assist :-(

Can't wait to write up my build log and take some pic's but I want ti to be working first - it's a bit of a beast rig