After a long battle I fixed my issue of being stuck at ddr3 2200... I upgraded power supply when I got two RX480s and put them in xfire thinking maybe that would help, but that is stupid, power supply should not affect ram speed, stability yes. well in theory. still did not fix the issue... I bought a new mobo, ASRock Z77 Extreme4 Since this is the only mobo to support my i7 3770 as they are hard to find on the market, and it upgraded me to a 8x8x 3.0 xfire which I had a 16x 3.0 and 4x 2.0 before. Still new mobo did not fix the issue.... Everyone and every forum said I HAD to use a i7 3770K edition, in order for my ram to run DDR3 2400. I tried loosening the timing to max, max voltage, changing the BCLK ratio and multiplier. NOTHING would work... :bang: New mobo, psu, money down the drain... uke2: ONLY other option i had was I had another i7 3770 pc just sitting in the corner from a DELL pc I was given for free a few years ago... So I took the CPU out of that DELL computer put it in mine.... Low and behold the PC booted up to BIOS with no issue, did not even clear cmos, even though I should have. :stewpid: Set ram to DDR3-2400 and rebooted, CAME RIGHT UP! windows 7 did BSOD on me when trying to log into windows. So I decided to reformat and put windows 10 enterprise on. :nerd: installed drivers from ASRock site, installed AMD 16.9.1 drivers Installed 3DMark, Fire Strike, Sky Diver, Time Spy, Battlefield 4 all play with no BSOD or crashes since. c1: Turns out it was just a bad IMC on the i7 3770, I put another i7 3770 non k same version, and the ram is running at proper speeds. :3eyes: i7 3770-4.1GHz @ 1.225v XFX RX480 XXX 8GB @ 1288/2000 ASUS RX480 Ref 8GB @ 1288/2000 Corsair DDR3 2400 11-13-13-31 1T @ 1.655v Corsair Force GT 120GB SSD-BOOT Samsung 850 Pro 2x128GB SSD RAID0-Gaming Intel DC3510 Enterprise 3x480GB SSD-DATA Creative X-Fi Fata1ity ExtremeGamer 5.1 surround 6x24" Dell P2412H Monitors Corsair AX860 PSU Corsair 760T Case All is well, just hope this might help others that may have issue trying to run 2400 ram speeds. YOU DO NOT NEED A ( K ) version of i7 3770 to get DDR3 2400 speeds, your IMC in that CPU just may not be as good, you could get same result and not 2400 speeds with a K version!
I've been running DDR3-2400 @ 1T timing in my computer ever since I built it, with an i5-3570K. From an elevated command prompt, try typing: winsat mem and seeing the reading. It's very much not a true benchmark, just a guide only. Windows 10 still includes winsat, even the latest RS2 insider. I only suggest you try running it as your score should be similar to mine.
read memory compatibility with your mobo. Clear CMOS(the best way by jumper.More better- short the jumper,take off the battery and push power button, without power cord in PC rig)Give it ~5 min for sure. Then will go to BIOS and try all settings default.Check it. If not - will try manual sets. Check all power save settings for CPU.(i got troubles on my AMD mobo "enhance halt state(C1E)" settings on bsod issue.Don't know Intel settings well. And of course, check for BIOS firmware first. My opinion is non compatable memory modules with your mobo.
You did not read the post did you? I fixed the issue, it was not memory compatibility with the mobo, I used two different z77 high end mother boards and the memory would not run at 2400. ASRock clearing cmos is easy they put a button in, no jumpers anymore that is old school It was a bad IMC on the cpu, I put in a backup CPU I had which was exact cpu i was replaced. Just turns out that CPU could not handle it.
That can happen. Some CPU's have weaker IMC than others or it can be even downgraded with time for heavy use of CPU/Ram voltages. Atleast its working for you know.
That's a little on the low side, but still respectable . I get 31422.26 MB/s run time 5.83 seconds. Mind you I have set 1T timing, that may help a bit. If I highly tweak the system I get into 32600 MB/s range, but that's pushing it.
There isn't a huge difference between DDR3-2133 and DDR3-2400, but I agree the 29452 MB/s seemed a bit low. Ivy Bridge makes use of the faster RAM a bit better than Sandy, even if the throughput is similar. Maybe it is to do with memory timings: Me: CAS 10 CR1 Undying: CAS 10 CR2 OP: CAS 12 (probably CR2)
It could be my timings but I am running 1T 11-13-13-31 1T should I set my tRC to what it says for SPD which is 44 because auto sets tRFC if the same thing to like 300? i could try and tighten the timings, but so far im just happy its running at 2400 instead of 2200, with stock voltages instead of having to boost them to just boot it actually seems much smoother overall and not a single blue screen or crash.
I dont think it does. If i recall Tj's 4770k/2400 is getting around 33k vs his 3770k/2400 29k, thats a better use of faster ram with Haswell. Even with tighter timings he wont getting there with Ivy. You have 3570k/2400 so how does your bandwith compares to mine 2500k/2133?
i7 3770 non K @ 4.1 GHZ Corsair DDR3 2400 11-13-13-31 1T getting 29452.28 MB/s is acceptable all systems are different but not worth really messing with to get to 33000 really, if it was below 25 then I would be more worried. I agree it seems it should be higher, but when I run sisoft sandra memory benchmarks it says I score 91% so I can live with that, since I am not being forced to use 2200 anymore and atleast getting what I paid for in theory I guess. main reason I do not want to upgrade is because my CoolIT Vantage ALC with LCD screen only fits lga775, 1155-56, 1366 sockets. I do not want to lose it and 3770 is able to keep up with rx480 xfire so no need to upgrade yet. Intel processors with 40 PCIe lanes are 600$... no thanks and mobo with 16x16x 3.0 is another 200-300$ not worth the upgrade. when my coolit vantage alc cooler dies, ill upgrade to a 16x16x 3.0 and cpu with 40 pcie lanes. Actually.... Does a 115x cooler fit all 115x sockets, i know you can use 1155 and 1156 but will my lga 1155-56 fit a 1150?
Are you running your CPU at 4.7GHZ? If so is that contributing to your extra bandwidth perhaps? Plus I can only get to 4.1GHZ on my non K 3770 which is still nice and I do not get lag from the boost. if I s tart to notice any stuttering in Xfire I run the CPU at stock clocks with no boost or turbo or multiplier and run at 34 instead of 41 things like that stuff etc... that always fixes Xfire micro stutter issues if anyone is curious. Turn off CPU overclock if running xfire if you have any stutter usually fixes it. Thank you to all those that have commented I really appreciated your feedback and conversation. Helps with problem solving.
I only have the trial Aida, so the above type benchmark doesn't show all the results. The report style does show all the memory results, so I've cropped them out and attached them. That also shows why I think getting DDR4-2133 for Skylake is not a good idea, it's slower than what I get on DDR3. If that same system was running the 'optimal' low CAS and other latencies DDR4-3200 no doubt it would smash my score.
Under the custom memory timings, there's DRAM refresh interval. Try setting that a bit higher, but no higher than say, 8200. It's down the list where you set the other timings. Most of the other timings don't really provide any boost. Setting this too high will result in instability, so don't go crazy with it .
