siefex Posted April 13, 2011 Posted April 13, 2011 Hi all, After running a 3dMark 11 test today, I noticed that my RAM is running at different frequencies to my surprise since I have already correctly set my timings and associated frequency in my BIOS. Regardless, here's the situation. I have four sticks of 2GB per-stick DDR3 1333 Mhz RAM. Two sticks are running at the correct 1333 Mhz freq and are using the correct timings I specified of 9-9-9-24. However, the remaining two sticks are running at 1066 Mhz with an incorrect freq of 9-9-9-26. Does anyone know how to correct this problem? In case it is helpful, my motherboard is an ASUS M4A78T-E. Another issue to mention is that CPU-Z states that my RAM is only running at 1.5v when it should be running at 1.6v. Now, I have already set in the BIOS for the RAM to run at 1.6v; yet CPU-Z does not reflect this fact. I would also add that AMD Overdrive does display that the RAM is correctly running at 1.6v so, is there just a problem with CPU-Z here or do you guys think my RAM is really running at 1.5v? Thanks for all the help!
sobek Posted April 13, 2011 Posted April 13, 2011 I don't think it is possible, even on triple channel, fo ram to run on different frequencies. I strongly suspect that there is something wrong with those readouts. Good, fast, cheap. Choose any two. Come let's eat grandpa! Use punctuation, save lives!
EtherealN Posted April 13, 2011 Posted April 13, 2011 Agreed with Sobek. [sIGPIC][/sIGPIC] Daniel "EtherealN" Agorander | Даниэль "эфирныйн" Агорандер Intel i7 2600K @ 4.4GHz, ASUS Sabertooth P67, 8GB Corsair Vengeance @ 1600MHz, ASUS GTX 560Ti DirectCU II 1GB, Samsung 830series 512GB SSD, Corsair AX850w, two BENQ screens and TM HOTAS Warthog DCS: A-10C Warthog FAQ | DCS: P-51D FAQ | Remember to read the Forum Rules | | | Life of a Game Tester
bumfire Posted April 13, 2011 Posted April 13, 2011 If your memory supports it, enable the memory XMP profile, that will auto set the ram freq and voltage for you. Since you are above 1066, then its highly probable that your ram will have atleast 1 xmp profile enabled on the ram. Your ram could easily be running at 1.5v, but once it gets maxed out it might have some problems. Best thing you can do is to enable the xmp profile if your memory have them, as that should sort out any problems you are encountering.
siefex Posted April 13, 2011 Author Posted April 13, 2011 I don't think it is possible, even on triple channel, fo ram to run on different frequencies. I strongly suspect that there is something wrong with those readouts. I thought the same exact thing. My BIOS is all configured as it should be, yet I'm noticing in both 3DMark and Cpu-Z that 2 out of 4 of my sticks of RAM are at a different frequency. I will assume that you guys are right about this; however, just to be on the safe side, I'll throw a post up on my motherboard's website and see if others have encountered this issue. Please feel free to offer additional suggestions, thanks!
siefex Posted April 13, 2011 Author Posted April 13, 2011 If your memory supports it, enable the memory XMP profile, that will auto set the ram freq and voltage for you. Since you are above 1066, then its highly probable that your ram will have atleast 1 xmp profile enabled on the ram. Your ram could easily be running at 1.5v, but once it gets maxed out it might have some problems. Best thing you can do is to enable the xmp profile if your memory have them, as that should sort out any problems you are encountering. Thanks for your suggesttion bumfire. If this is similar to what you are suggestiong, I have tried running my RAM on "AUTO" settings within my BIOS. However, that causes my RAM to run at frequencies which are significantly off from its standard settings. Also, the voltage is set to 1.5 in that circumstance. Where do you usually find this XMP profile? Could it be named something else? I'm running the below RAM: Corsair XMS3 1333Mhz 9-9-9-24. Newegg Link: http://www.newegg.com/Product/Product.aspx?Item=N82E16820145198&cm_re=xms3_4gb_ddr3-1333-_-20-145-198-_-Product
BHawthorne Posted April 13, 2011 Posted April 13, 2011 Very strange, something definitely doesn't sound right with that. To the best of my knowledge, ram always uniformly defaults to the stats of the slowest stick installed.
siefex Posted April 13, 2011 Author Posted April 13, 2011 Ok , lets have a look at the ram in detail get cpu-z run it and select each stick of ram and see what the SPD table says Iam assuming that the 4 sticks of ram are the same brand and model ? Usually if you mix ram it will set the speed to the slowest ones left pic shows what ram is running at , right shows spd tables When I get home tonight, I will post my CPU-Z tables. I'll get back to you guys soon. Mine definitely do not look like what you just posted.
Kuky Posted April 13, 2011 Posted April 13, 2011 I can confirm also all RAM stick have to run at the same speed and timings and if they are different it will default to the settings of the slowest one. Those RAM profiles are actually programmed in the RAM itslef (something like a BIOS) so it can adjust timings to best fit depending on what voltage and frequency they are running. You need to double check that you have latest motherboard BIOS, and latest software of CPU-Z... and I find that RAM timings are best left on AUTO PC specs: Windows 11 Home | Asus TUF Gaming B850-Plus WiFi | AMD Ryzen 7 9800X3D + LC 360 AIO | MSI RTX 5090 LC 360 AIO | 55" Samsung Odyssey Gen 2 | 64GB PC5-48000 DDR5 | 1TB M2 SSD for OS | 2TB M2 SSD for DCS | NZXT C1000 Gold ATX 3.1 1000W | TM Cougar Throttle, Floor Mounted MongoosT-50 Grip on TM Cougar board, MFG Crosswind, Track IR
siefex Posted April 14, 2011 Author Posted April 14, 2011 Question for everyone reading this thread: when you look at all four of your Dimm pages within CPU-Z, are the EXACT same numbers displayed on each page for your memory's timings and frequency? Just curious. Still at work, going to get home in the next few hours and get my CPU-Z pages posted.
Bodo Posted April 14, 2011 Posted April 14, 2011 yup Corsair 550D / Be Quiet 650W Pro 10 / ASUS P8Z77-V Pro / Intel i5 3570K / 16GB Kingston HyperX 1600 MHz / EVGA GTX 970 SC ACX2 4GB / 128GB Samsung 830 / RME HDSPe Multiface 2 / 1TB Samsung F3 / Prolimatech Megalames Rev. B / Windows 10 / BenQ XL2420T / Saitek X52 Pro / Kone Pure+ / Filco Majestouch 2 Ninja
Moa Posted April 14, 2011 Posted April 14, 2011 (edited) Note that RAM often reports speeds that are not the same as the speed the RAM will run at. I have some RAM that reports itself (SPD table) as running at 800 MHz but is rated (and sold) for running at 1066 MHz. Given enough power from your power supply (correct voltage and sufficient current) and a motherboard that can adjust voltages correctly and you can run RAM ok at the (higher) rated speed than the value reported by the SPD table. Actually, I got stability issues running this RAM at 1066 until I got a better power supply. Once I got a new supply I found that the increase in RAM speed from 800 to 1066 made a disproportionate difference to my FC2 and A-10C experience - clearly these games are starved for memory bus transfers and getting faster RAM is a worthy goal (note: I have an 'old' Q6600 and Radeon HD 5970 and both were starved by the RAM - getting a i7 2600k won't always make a difference unless you also have very fast RAM). All sticks of RAM must be able to run at the same clock speed. Even if they are rated at the same speed you can still get intermittent problems. To avoid these I try not to mix RAM from different manufacturers on the same machine if I can help it. Using RAM of the exactly same type from the same manufacturer contributes to the stability of your system. Edited April 14, 2011 by Moa
siefex Posted April 14, 2011 Author Posted April 14, 2011 (edited) Ok all, here are my CPU-Z screens as promised. Please take note of three problems as made clear by the below images: 1.) Dimms# 1 and 2 are clocked at 667Mhz while Dimms# 3 and 4 are clocked at only 533Mhz. 2.) Dimms# 1 and 2's timings are 9-9-9-24 while dimms# 3 and 4 are 9-9-9-26. Is this significant? 3.) All dimms should be running at 1.6v; yet CPU-Z indicates they are only running at 1.5v even though I have specified the correct voltage setting in the BIOS. Thank you to everyone for helping me to figure out this confusing issue. Here are the images. If they don't pop-up right away, simply right-click and save the URL then open it in your browser: Edited April 14, 2011 by siefex
siefex Posted April 14, 2011 Author Posted April 14, 2011 Just found this thread by a similar person who ran into my problem. Looks like Corsair is selling very similar-looking memory modules; yet they are in fact different from one another... http://forum.corsair.com/v3/showthread.php?t=82227 So what do you guys think I should do? Toss out the old pair and buy another new pair which will match the latest kit I bought? Or, should I just get a brand-new 8 GB set so that I buy all my modules in the same package? Will doing this increase my performance in DCS in any way?
siefex Posted April 14, 2011 Author Posted April 14, 2011 (edited) I figured you had mis matched ram modules Sell what ram u have and get 2 x 4Gig of the fastest ram you can (check your mobo manual to see how fast u can go) I assume you have 4 ram slots Do you think that will actually make a difference in the frame rates I'm getting in DCS compared to what I'm getting now? I'm getting like 45-50 FPS on the ground (with MFCDs exporting to helios), and then a little over 60 when I'm over mountains. I don't want to blow $100+ on RAM just to get 2 FPS difference. Plus, I'm still wondering if my computer is just getting faulty information within CPU-Z from 2 of my RAM sticks when in fact they are running at the correct settings. Thoughts? Edited April 14, 2011 by siefex
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