ChrisUlrich
Active Member
DRAM Frequency is 800mhz Isn't that really slow?
CPU-Z Reading for Memory
- Thread starter ChrisUlrich
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ChrisUlrich
Active Member
How are you sure that it's running at DDR3-1600 speeds?
ANd you're correct... I meant DDR3 2000 PC16000.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227303
Link to the memory
I'm assuming you are looking at the memory tab (see below). The speed there is the real speed so you need to double it to get the DDR speed.
To get your RAM to run at DDR3-2000, you need to go into the BIOS and manually configure it. Your manual should tell you how to do it if it's not obvious by the BIOS menus.
To get your RAM to run at DDR3-2000, you need to go into the BIOS and manually configure it. Your manual should tell you how to do it if it's not obvious by the BIOS menus.
ChrisUlrich
Active Member
I'm assuming you are looking at the memory tab (see below). The speed there is the real speed so you need to double it to get the DDR speed.
To get your RAM to run at DDR3-2000, you need to go into the BIOS and manually configure it. Your manual should tell you how to do it if it's not obvious by the BIOS menus.
Yep! That's definitely it!
When I clock my memory @ 2000, the PC won't bootup properly. Apparently, 790i boards need to have their memory sticks in the black slots to run at DDR3 2000. I did that, but then my PC wouldn't run right. So I just put them back in the other slots and presto, runs beautifully again.
ChrisUlrich
Active Member
You probably need to up the voltage to run it at 2000 but 1600 is pretty fast
Newegg has it specified @ 1.9v. My bios' system monitoring says it's at 1.5v. Does that mean I can kick it right up to 1.9v?
http://www.ocztechnology.com/products/memory/ocz_pc3_16000_nvidia_sli_ready_edition
OCz lists it at 1.8v but 1.9v should be fine. Your EVGA 790i board should support the EPP programmed into it as well, do you have an option to enable EPP in the BIOS? That should have it set up the timings and voltages and what not for you. If not, you can always set it manually to 9-9-9-30 and 1.8v or 1.9v.
OCz lists it at 1.8v but 1.9v should be fine. Your EVGA 790i board should support the EPP programmed into it as well, do you have an option to enable EPP in the BIOS? That should have it set up the timings and voltages and what not for you. If not, you can always set it manually to 9-9-9-30 and 1.8v or 1.9v.
ChrisUlrich
Active Member
I do have the option and I keep it enabled so I can unlink the CPU/Memory otherwise I have bootup issues @ 3.5ghz. For some reason I read that my board requires I put my memory into the black slots (2 and 4) vs what I have them in now (slots 1 and 3 (gray)).
But when I put them into the black slots and even when I put my system voltages and clocks back to default, the PC still won't run correctly.
But I will try what you just said. I'll crank my memory voltages up to 1.8v and my frequency too 2000.
Are you good at overclocking CPUs as well? Because I can't seem to make my PC stable @ 3.6ghz. I am perfectly fine at 3.5ghz, but can't seem to get passed it. I have my multiplier at 8 and my frequency set at about 1750 I think. Which puts my clock at 3500mhz. It puts my memory at 1591mhz. If I crank my frequency to 1850, I go right to 3600mhz and my memory goes to 1600mhz. I stepped my voltage up maybe 5 clicks and it still wasn't stable. So I became quite afraid and just backed off to my last known good setup.
It's possible that that's as fast as the chipset or CPU will let you run it (hard to say which, I'd lean towards the chipset though). Increasing the northbridge voltage might open up a bit more room. HardOCP got a 500MHz FSB out of their 790i board, your board may simply just not be quite as good.
If you have 4 sticks of DDR3, the 1600MHz barrier seems to be common...I don't think that's what's limiting you though, seeing as you only have 2.
If you have 4 sticks of DDR3, the 1600MHz barrier seems to be common...I don't think that's what's limiting you though, seeing as you only have 2.
ChrisUlrich
Active Member
Increase the voltage on my northbridge? How safe is that? haha And I haven't checked for that in my bios "system monitoring" yet but I don't recall seeing that. Just wondering what the safe temps/voltage are.
Someone gave a review on this board and said he OCed his Q9650 to 4.00ghz without any issue. All the reviews keep saying to update the bios but I am afraid to do that because I never did it myself. Plus, someone once told me to never update your bios if you're not having any issues. :-/
I got the board back in May so i'm sure there has been some nice bios updates on the thing. I tried to find what the updates were but I could only find notes on the latest one released.
