Severe Memory Problems :p

R

Raziel

New Member
Hey all, some of you might recall that a while ago I had just finished upgrading my computer after some trouble with RAM. Here is my current build:

Intel Q6600 @ 2.8 GHz
Geforce 7900 GTX
Antec Truepower 2.0 550W PSU
2 x 1GB DDR800 Geil Memory
Gigabyte P35-DS4

Anyway, when I upgraded one of the memory sticks was bad (my computer would start with it and then turn off after about 5 seconds) so I just ran with one until today when I was able to go back and exchange it. Now both sticks work BY THEMSELVES but not when I put them in together. It gives me the same issue of starting up then turning off after about 5 seconds. I am extremely confused and have no idea what to do.. I have tried both separately and that works and I have tried not running them in dual channel (placing one in the red slot and the other in the yellow) and that does not work. Please help!

Thanks in advance
 
boot to BIOS with one stick, manually set RAM timings and voltage, then power down and install the second stick.
 
Okay, so the site says 1.8-2.2V and 5-5-5-15 timings. I went into my motherboard BIOS and it didn't tell me what voltage it was at it only let me bump up the voltage by certain intervals.. :S. Is it possible my PSU is not powerful enough to supply them both or something?
 
Okay I managed to find one discrepancy, when I am running a single stick of RAM it says the timing is 5-5-5-18 but on the RAM the timings are written as 5-5-5-15. Would changing this affect anything?
 
Okay.. A lot just happened hahaha. I loaded the optimized default settings, shut down the computer and put in the second stick of RAM. This time it got to the Login screen and I was like woop-ee it's working!!! Suddenly the display cut off and then after about 20 seconds the computer shut down. So I turned it off took out the second stick booted up with one and again Loaded the Optimized Default settings and shut down, put the second stick in and booted up. And now I am currently posting to you from my computer which has 2GB of RAM!!!!

However, I seriously doubt the stability of this setup. I think as soon as I put it under any load it will shut down. My computer is still lying on its side with insides exposed after this post I will turn it back upright and put the side back on and hopefully it will still be working.. wish me luck .

Also I think it may be that my stupid Truepower 2.0 550W PSU is just unable to handle the RAM.



EDIT: Just turned off the computer and attempted to reboot it, no dice. I'm guessing its the power supply's inability to support the second stick of RAM which means I'm in the market for a new PSU. How does the Corsair 620 HX sound?
 
Would it be running at the same voltage if I put 2 sticks in without me changing any settings? Also is PCwizard displaying what the motherboard is putting in or what is actually going into the memory?

Thank you :)


EDIT: Voltage under SPD EEPROM (A3) is SSTL 1.8V
 
Last edited:
No telling, it could be that the SPD on one stick defaults to a lower voltage than the other one, I,ve seen weirder thing happen. Its what the memory is running at, voltage and timing.
 
Since it says 1.8-2.2 raise it up to 2.0 manually in the bios, shut down and put both sticks in and see what happens
 
I just did what you said and bumped the voltage up by 0.20 V. It almost worked then suddenly crashed and now it will turn on for like a second and then instantly turn off.

I think I fried my PSU, but is there anyway of knowing? I don't exactly want to go and buy a nice PSU to find that it is my motherboard...

:(
 
Try reseting the bios by the jumper on the board, move it over to clear for a few minutes than move it back, this is with it unpluged and push the power button a few times to discharge the P/S
 
Last edited:
First make sure you have the latest non-beta BIOS. Then, double check that you have both modules in the right DiMM slots:

A1________(Yellow) <----1st module
A2________(Orange)

B3________(Yellow) <----2nd module
B4________(Orange)

Next, try if the system can boot up correctly now. If yes, go into BIOS, at the main menu of your BIOS, press Ctrl+F1 on the keyboard to unlock hidden memory timing options. Now go in M.I.T (MB Intelligent Tweaker), change PCI-E Frequency to 100Mhz(a must for overclocking, but better stability even for non-overclocked systems). Now disable C.I.A2 if it's not yet, you don't need this and it causes instability. Then, follow the below settings accordingly:

Performance Enhance: [Standard]
High Speed DRAM DLL: [Option 1]
DRAM Timing Selectable: [Manual]
x CAS Latency Time = [5]
x DRAM RAS# to CAS# Delay= [5]
x DRAM RAS# Precharge = [5]
x Precharge delay(tRAS) = [15]
x ACT to ACT delay(tRRD) = [Auto]
x RANK Write to READ delay = [Auto]
x Write to Precharge delay = [Auto]
x Refresh to ACT delay = [42]
x Read to Precharge delay = [Auto]
x tRD = [Auto]
x tRD Phase Adjustment = [Auto]
********System Voltage Optimized*******
System Voltage Control [Manual]
x DDR2 Overvoltage Control [+0.3v]

Now Save & Exit. Also, if you got a PCI Sound Card, make sure your onboard Realtek HD Sound is disabled in BIOS. Post back your results.
 
Now that ^^ is a good write up hopefully this will fix his problem. I imagine that its registering the the sticks differently and causing a conflict somewhere!!
 
Addition:

How the mobo's referencing voltage setting works:

Take that memory for example, has a standard voltage of 1.8v. The reference values you see under the voltage settings mean they're being added to the standard 1.8v, see below:

+0.1v --> 1.8v + 0.1v = 1.9v (this is the current voltage)
+0.2v --> 1.8v + 0.2v = 2.0v

So on so forth. Did you manage to get it up and running yet?
 
You must log in or register to reply here.
Back
Top