Questions about RAM speed.

I'm a bit confused by this, how it relates to CPU speed, FSB speed, double-pumped this, quad-pumped that. I know my RAM is working harder on account of having to up the voltage on it, but I can't work out how or why. The BIOS is about as illuminating as a cellar, the manual doubly so.
I have a Q6600, Corsair Dominator 8500, on an MSI P7N Platinum.
I've got the Q6600 up to three and a bit ghz, had to up some of the voltages to get it stable in Prime95. So far so good, but I don't have a clue what the RAM is actually doing. In both manual and linked modes...no difference. I see that I can set the RAM manually, in both modes, to 1066 or more (1066 is it's rated top frequency), but I'm not sure if that's real speed or a multiplier of something. At the moment it shows in the BIOS:
FSB Clock: 1350
Mem Clock: 800
Adjusted DRAM Frequency: 798
I've changed the timings from 5.5.5.18 to 4.4.4.12
If I change the RAM to 1066 what will happen? Is that actually 4 x 1066, and it'll blow up? 2 x 1066? What is the 798? What actual 'true' RAM speed am I seeing at "800/798"? Why doesn't "Linked" automatically set the RAM speed appropriately per the OC'd CPU speed? What about this "ratio" thing, where I've read that the best is 1:1? Mine is currently at 13:11
What I want is the RAM operating at top speed, regardless of the CPU being OC'd or stock. The required voltage increase seems to suggest it is, but the numbers say otherwise.
Any help/advice/input would be gratefully received. I've read a whole bunch of guides but none of those I've been able to find cover this area in any detail.
Edit: Ok, I've noticed in Everest that the Memory Bus is 398.9, which doubles-up to the 798 in the Adjusted DRAM Frequency field in the BIOS. Eg, 800mhz. So, if my RAM is rated for 1066 I could enter that into the BIOS and see my Memory Bus do 533mhz? I'm assuming that the 4.4.4.12 timings I've achieved have come out of the overhead I'm saving by running the RAM at 800mhz?
If so, which give the greater performance benefit (in games mainly), 4.4.4.12 at 800mhz, or 5.5.5.18 at 1066mhz?

Quote from: AaronYuri on 11-May-08, 21:21:03
No, the memory frequency isn't bottle necked by the FSB. The FSB is just the base for calculating the memory frequency.
Oh well, that doesn't mean much to me. But from what I can gather from the thread you linked there isn't much advantage to running the RAM at 1066 vs 800 anyway, as the performance difference I'd see in games would be negligible.
Thanks Aaron.

Similar Messages

Question about RAM CL

Hi guys. I'm finalizing my PC build and have a question about ram CL that I cannot find answers to on the tweakers page here. http://ppbm7.com/index.php/news/planning?showall=&start=3
I'd like to use these two ram sticks as an example.
Transcend JetRam™ High-Performance 8GB DDR3-1333 240-Pin Module : CL9, 6-Layer PC Board
Transcend JetRam™ High-Performance 8GB DDR3-1600 240-Pin Module : CL11, 6-Layer PC Board, Ultimate cross-platform compatibility and stability
My question is, which is better for video editing? On the one hand we have 1333mhz at with a CL of 9. On the other, we have faster 1600mhz ram, but at a higher CL of 11. Now, I'm not one to get caught up in the technicalities like it may seem, but I do want to understand these so I can make informed decisions, especially when price is a factor. In this case however, they are the same price...

From http://ppbm7.com/index.php/news/cpu-mobo
Make up your mind about the number of memory sticks you want to install. On the X79 platform, do you want to use 4 slots, or do you want to fully populate all 8 slots? This is very important especially with i7-3930K / 4930K CPU's, which have a rather finicky memory controller.
Make a shortlist of quad or octo packs of memory sticks in the size you want, limiting yourself to ONLY sticks using 1.5V or less.
Check the motherboard manufacturer's site QVL list to see which of the sticks on your shortlist are approved. Pay attention to the number of slots for which they are approved. Some modules are approved for 4 slots only, others for fully populated use.
Check the memory manufacturer's site QVL list to see which motherboards are approved.
Try to establish if there are users that have been successful in using the sticks on your shortlist and delete any that were giving trouble to others. NewEgg can be a good source for that.
Now that you have a very short shortlist, contact the Technical Support departments of both the motherboard manufacturer and the memory manufacturer and ask them to confirm or deny the compatibility of the memory modules in the quantity you need.
If both confirm compatibility, check the physical height of the modules including heatsink in relation to the intended CPU cooler. Do they fit without modding?
In general, only buy matched sets of memory sticks. There are too many different sticks with the same type number, that will cause grief when bought as four single sticks, but you limit the risk by only buying quad sets or octo sets for fully populated X79 platforms.
CAS latency is no longer important, in fact, with the finicky nature of the memory controller of the Sandy Bridge-E, it can be advantageous to choose a higher CAS latency for improved compatibility. What can be important - relatively speaking, only in single digit % performance differences - is the rated speed of the memory, 1333 or 1600 or 2133 or even 2400.
Even though the X79 platform only supports - at least officially - up to DDR3-1600, one can use XMP profiles in the BIOS to have the memory run at its rated speed of say 2133. For my new 'Monster' I followed these steps and ended up with a fully populated 8 x 8GB octo set of G.Skill RipjawsZ F3 DDR3-2133 sticks that are running without any problems at 2180 MHz.

Switching from PC to Mac, have question about processing speed

Hi, I am going to buy a used Mac off of ebay and I am pretty clueless about where to start. I am not very knowledgable when it comes to the difference in processing speeds on pc's and apples both and have just been using what has been passed along. I am on a budget and cannot afford to do a bunch of upgrades when I get a new (to me) apple. I am currently working on a old pc (8 years?) that has had as many upgrades as it can handle. It is a Pentium III 548 mhz, 384 mb of ram and 40g hd on Windows XP. The Apple that I am stuck on getting right now is a G3 with a bunch of upgrades. It is an Imac PowerPC g3 with a 600mhz processor, 512 mb of memory, 120 gb hard drive. It has OS X 10.4 Tiger and ILife and has a single processor. It has a airport extreme card also. My question is 1) Does it take less mhz and ram to run the operating system for an apple and 2) am I going to notice a big difference in speed between what I have now and with the apple? The g3 is $249 and comes with a 90 day guarantee minus shipping. Any help is appreciated, thanks in advance!
Tracy

I'd save your money or apply it to an Apple G4 (AGP or newer) tower. Depending on how it was configured, you may find that your PIII was a little faster loading web pages than the 600 MHz iMac. My 1 GHz P3s are faster than my iMac DV G3-400 MHz models. I think $249 plus shipping for a 5 or 6 year-old iMac is a bit high. I picked up one of my G3-400 MHz iMac DVs for $20 at a thrift store. If there are any in your area that accept donated computers, you might want to check for a local bargain. While the 600 MHz model that you described is loaded, that's about as far as it goes, other than bumping the memory to 1 GB, but that would likely involve removing a pair of 256 MB DIMMs already in it, and buying a pair of 512 MB DIMMs. If it has a single 512 MB DIMM installed, you wouldn't have to spend as much. Selling the computer with Tiger installed but without the OS installer media will eventually put you in a bind, when you'll need to boot from the installer CD to perform disk repair maintenance. Some may consider Tiger to be a bit demanding of that iMac's system resources, preferring the predecessor "Panther" instead. The bottom line is that the iMac is somewhat limited, in terms of design (no PCI slots) and/or future upgrade potential. If it will suit your needs as a starter Mac, try finding a comparable model for less. You might also check for used computer dealers in your area, as that saves the cost of shipping, and return shipping - if there's a problem. The G4 tower has more potential for hardware tweaking, if you decide to stick with the Mac OS. You can find G4 towers at eBay selling for less than $249, but you'd need to have a monitor. Is space at a premium, in terms of a preference for the iMac's compact form factor? There is a direct correlation between the OS version and the optimal processor speed and amount of installed memory to adequately run it. OS X needs/uses more memory than the older, pre-OS Mac versions, just as Vista or XP2 requires more memory than Windows Me or 98SE. A comparison of Intel's P3s to Apple's G3s or G4s gets into the debate over which one handles more instructions per clock cycle than the other at a given speed. It's difficult to do a head-to-head comparison, because the hardware and software is not the same.

Compatibility question about RAM

Having replaced it with 1GB RAM I am selling off the following...
Make: KINGSTON
Size: 256 MB
Type: DDR SDRAM
Speed: PC2700U-25330
Used, 3-years old, original component taken from iMac G4 1.25 GHz PowerPC G4 (17-inch flat panel).
A prospective buyer has asked:
"Hi, i have an imac g4 15inch flatscreen thats about 4 years old, do you know if this memory is compatible?"
Does anyone know the answer?
thanx

4 years ago Apple was selling the 700 MHz and 800 MHz 15" G4 iMacs which are not compatible with PC2700 RAM.

Question about high speed DSL

I have had high speed DSL 1.5 MB service since 8/20. Up until last night I was in love with the service. It was running between 600 and 1000KBPS excededing my expectations.
Then last night around 9:45pm it got extremely slow. I am talking 23.3KBPS on the bandwidth test I was able to run from CNET. I followed the instructions in the tech support and power cycled my modem and PC. I checked all connections and they were secure. The DSL light is solid which from what I have read here means I have a connection.
Would rain/thunderstorms cause an issue? We have had a large amount of rain since Saturday.
I am just frustrated with this issue.
Solved!
Go to Solution.

Ok..
Please post the modem status from your modem.
#1 If you have no idea of what I mean, since I have no idea of how old or new your Westell 6100 is, I point you to All DSLR (.dslreports.com) FAQs » Verizon Online DSL FAQ » 4. Hardware -> How do I use a router with the Westell 6100?
#2 When there, notice that they talk about the white and blue Westell Firmware and the red and black Westell firmare.
Please only answer my question - Do NOT attempt to do what they tell you to do there, at this time.
Which one, do you have?
If you are the original poster (OP) and your issue is solved, please remember to click the "Solution?" button so that others can more easily find it. If anyone has been helpful to you, please show your appreciation by clicking the "Kudos" button.

General Question About Compressor Speed & Newer Macs

Hi,
I am considering buying a PowerMac G5/2.3 dual-processor. I currently have a G4/350 with a 1.2 Ghz Sonnet processor installed. My main intent is to speed up MPEG2 compression for DVDSP 4 at any encoding setting compared with what I have now. I usually leave this computer running overnight to encode without any other apps running. Typical video length is 1-2 hours.
Will I see a significant speed boost with the G5 and a comparable amount of ram or is it a waste of money? DVDSP simulation also looks choppy. Will that smooth out?
BTW, I have no interest in creating a cluster to hand off Compressor tasks, so that path will play no part in my decision. Thanks for any help.
James

You'll see a difference, for sure.
I work on a Dual 1.42 G4 tower but often visit a friend over at a local post house who works on a Dual 2.5 G5. His machine is significantly faster than mine - I'd say about 40% faster. (and yes, I say this having needed to work on Compressor on his machine)
Considering the greater horsepower difference in your scenario, you should be pretty happy.

Question about transfer speed of my cloud ex2 product. request advice please

Hi guys, I use Raid 1 on my cloud ex2. I have something weird going on. When i received mine My Cloud ex2 with dual wd red of 6tb disks i just unpack all the gear and just do the installation as provided. I used also the data cable that was inluced in the box and i connect it to mine Airport Extreme router from apple. Also mine computer is windows and is also connected on the Airport extreme and if i do a speedtest of mine connection via this website www.speedtest.net. below you see a picture of it. The problem i have with mine My cloud device is i wanted to copy mine files from a wd 4tb external disk wich is connected on my pc via USB 3 connection from there i copy them to mine Wd my cloud ex2 drive via network and i try to move arround 50gigs in total and he write them in aprox 10MB/s thats ridicilous slow speed. How i can solve this issue /? is there any way to do it faster because i also wanted my movies on the nas but if i see that 50 gigs takes me aprox 2 hours to get the job done ya mine USB 3 external disk do this operation much quicker.... pfff I checked also mine network and i have 1Gb speed and the network light at the back of the mycloud ex2 is GREEN blinking because of the copy proces.... Anyone can give me explanation about this matter Thanks in advanceSteve

I beg to differ.....my EX2 was showing 10-11MBps (thats megabytes) until I learned a thing or two about home network infrastructure... What did I learn? 1. I had an old router that did not support gigabit (problem!)2. I had old network cable that was homemade (possibly a problem)3. I had outlandish expectations of my hardware despite #1 and #2 (biggest problem)4. At no point did I doubt the EX2. I was smart enough to know the capabilities of most hardware just didn't know enough about networking hardware. (first step to solution is admitting there's a problem) What did I do? Well I thought about how important it was for me to be able to move data between my PC and the EX2 as fast as possible so i scoured the Internet for answers. I then decided my newer technology devices (iphones, Ipads,Wifi TVs, etc) coud benefit as well from upgraded hardware. So I purchased a gigabit compatible router (it was hard to part with the cash for a stupid box with blinky lights) and a new cat5e cable. BOOM! 60-70 MBps from my PC to and from the EX2. Now, I would like to see even higher speeds being that my SSD can handle nearly a GB per second and being that a gigabit connection (in theory)) is equivelent to 125MB (and i'm aware of some overhead needs) i was hoping for maybe 90-100MB per second. This is acheiveable perhaps with utilizing a gigabit switch instead of the router and guaranteeing no other writing to the source and destination drives but I've got bigger problems.... The wifi to my Laptop is bottlenecking my speeds to the NAS at around 11MBps which I think can be fixed with a new wifi card that is capable of AC speeds. No blame to the EX2 on this...either way despite my less than desirable speeds in the beginning, I never had an issue streaming from the EX2 just backing up data was time consuming. If you value your time and want the speeds that the rest of the world is getting... I suggest the following: 1. Make sure you got a Gigabit router2. Make sure your PC has a gigabit NIC card3. Make sure you've got good Cat5e (at minimum) cables. Got all the above satisfied? You should be flying and happier than a blue haired old lady with a bucket of quarters at a Vegas slot machine. To be clear... I am a cheapskate and don't have the most robust machinery but I did learn WHERE to spend my money to get the best bang for the buck. I recently went on a purchase binge but with a well thought out strategic plan... PC = HP500-314 >>16gb Ram >>250gb Samsung 850 SSD >>AMD A8-7600 CPU (total investment $599)Laptop = Lenovo G50-45 >> 16gb RAM >> 500 gb Samsung 850 SSD >> AMD A8-6140 (total investment $549)Router = Netgear Nighthawk AC1900 (R7000) gigabit router The money I saved on not buying a top of the line Intel I7 PC for roughly $1,200-$1,400 allowed me to build two pretty decent machines (with fast hard drives and more RAM than I can use) and a $200 router (now available for $160) for nearly the same price as one awesome machine that wont reach its potential with what I use them for. All that said I would then have no more moeny for hardware and would be running through my 6 year old crappy router. Moral of the story, don't blame the EX2 until you've had a darn good look at the rest of your hardware and network infrastructure. I believe most of the complaints are stemmed from my same early mistakes. You need to understand gigabit, megabit, and megabyte before you make any claims. Hope this helps someone! Sorry for the long post, I think I just found out how much I like writing on my new laptop!

Few questions about RAM upgrade for Tecra M5 (PTM51E)

Hallo
I have Tecra M5 (PTM51E). My questions are:
Is it possible to put same more RAM to my notebook? (Now I have 1GB) ,
What type of RAM should I buy?
Where Can I buy it?
And can I put this RAM to my notebook by myself or it isn't so easy to do that?

Hallo
You can upgrade your Tecra up to 4 GB RAM. Compatible modules are:
PA3499U-1M25(DDR2-667 256MB Memory Kit)
PA3511U-1M51(DDR2-667 512MB Memory Kit)
PA3512U-1M1G(DDR2-667 1GB Memory Kit)
PA3513U-1M2G(DDR2-667 2GB Memory Kit)
DDR2-533 256MB (PA3389U-2M25)
DDR2-533 512MB (PA3412U-2M51)
DDR2-533 1GB (PA3411U-2M1G)
Use those part numbers and put in the Google. You will find many online shops where you can order them.
You can also visit Kingston homepage and find compatible modules for your Tecra. Use just part numbers and search for cheapest online shop.
Thats all!
About exchange there is no much philosophy. Check page 151 in Users manuals for your Tecra.
Everything is described there.

Question about processor speed

Ok. I used to have an iBook G4 1.2 Ghz. I am considering getting one off of ebay with a 1.07 Ghz processor...if I had 768 RAM last time and had it with the one i am considering buying, would there big a noticeable difference in speed or performance?

Obviously there will be a difference. I'm only basing my judgement on the fact that I own a 1.33Ghz iBook and having used a 1.42Ghz iBook, the only way I'd probably notice any real speed difference was if I ran them side by side. If you're running with 768Mb of RAM, I think the computer will (in your mind) run [virtually] identically.

Another Question about RAM

I bought my laptop in December of 2009.
13" MBPro.
I have been curious about upgrading RAM since that would be one of my only ways to improve performance. I am slowly adding to this computer so I need to improve it where possible.
I saw something about the "10%" page-in and page-out idea.
My laptop was rebooted earlier today but... as of right now...
Page-In: 474.6
Page-Out: 305.3
Would it be worth it for me to upgrade the RAM??
Any input is appreciated!

Page-outs should only be 10% or less of Page-ins - if you're seeing equal values then yes you need to add more RAM.
http://eshop.macsales.com/item/OtherWorldComputing/8566DDR3S8GP/

Two question about running speed in Labiview RT and FPGA

hi All
Right now I am working on a project, which need to be developed on Labview RT and FPGA
Here I have two quick question.
1. Why sampling rates of RTD (9217) module is very slow, it is just aroud 1/sec? even I just tried to run Labview example.
2. We would like to develop another HMI, which can be used for monitoring the program running in CompactRIO. In my project, i want to use network publish varible to implement this function. but the running speed become very slow, when I put these variable into my codes. (Shown in attachment)
Thanks
Regards
Attachments:
RT_Question.doc ‏172 KB

Nope, those modes can be selected when using 9217. Drop an I/O property node to your FPGA block diagram and select correct module from the list and you should be able to set conversion time.
Answer to your second question is that your shared variables update only when there's data available from FPGA. This means that if you use high resolution mode (800ms/4ch) they update once every ~800ms. Changing your conversion time to high speed should give you a faster update rate.

2 questions about connection speeds

Hello,
First up: I've been using the same ISP for 3 years now, at the same apartment, and my top download speed has always been 1.5Mbps (roughly 185K/s). For some reason my top download speed "now" is precisely 150K/s, and it's been that way for the past week or so. (And this speed limit affects all my internet-aware apps.)
Is it possible that I've set an OS-wide download limit without realizing it?
Second question: I'm using MenuMeters to determine my connection speed. When using Transmission, a Bit Torrent app, I can also read it's total downloading speed. When MenuMeters tells me that my total download speed is 150K/s, Transmission tells me that it's only downloading at 135K/s.
Trouble is that Transmission is the only app running. And indeed if I pause the downloads, MenuMeters indicates 0K/s (so there are no other internet-using apps running). Since I haven't found any report of speed errors on the Transmission forum, I don't understand this incoherence.
Any ideas?
Thanks
Loa

Hello,
Tom: very close to what MenuMeters was telling. So I guess Transmissions has some bugs.
But that doesn't solve my other problem: why isn't my top speed 185K/s anymore? Can this be on my side, or is it entirely up to my ISP?
Thanks
Loa

Questions about Ram!

I am sure I asked this question when I got my iMac 4 months ago (to the day!) but I want to ask again.
I have an iMac G5 rev B 2.0 ghz with 1.5 gigs of ram. I have the stick that came in it and a 1gb samsung ram (http://ncix.com/products/index.php?sku=13836&vpn=SAMSUNG32001024&manufacture=Sam sung) - I am wondering if I should upgrade to 2gigs, get another stick the same so it will run at 128 bit.
I have started playing World of Warcraft... it runs great! Perhaps a litlte shakey compared to my bfs windows machine with 2gigs of ram and a Nivida 6800 but I am wondering if more ram (running at 128 bit) would make a noticable difference. I keep checking and I have never got a page out except once or twice when I first got the computer.
Is it worth the money to add another gig stick (well really only another 512) - is the samsung ram okay? Someone told me I shouold use OC but then someone else told me that Samsung is just as good.
I am happy with the way it is now, but this ram keeps dropping in price... so I am just wondering.
Thanks!

I did just what you are asking for the same reason. I play WoW ( On khadgar server.) and I had 1.50 and went to 2. I noticed no change. The 128 bit processing IMO is over rated and doesnt do anything thats noticable to the user. At least I didnt notice it. I say save your money, I dont think youd notice much of a difference.
On a side note, you can change your video settings in the game to help with any lag you are getting.

Questions about ram upgrade of Satellite L100 (PSLA3L)

I have the above laptop and a new stick of Ram, don't have a manual however are there instructions for upgrading this?
I've opened the back and type of clip that holds the RAM is unfamiliar to me. I can see how it goes in but it doens't clip in easily which leads me to belive i'm missing somthing, either that or it requires an ungodly amount of force.
Grateful for any assistance

Why you dont take a look into the user manual???
There is an detailed instruction placed ;)
Simply remove the cover, lift one side of the insulator sheet and fit the modules connectors into the computers connectors at about 45 degree angles. Press the module careful to ensure a firm connection.
Push the module down so it lies flat. Latches on either side will click into place to secure the module
Thats all

Tecra R850 - 147 - Question about RAM

Hello.
What kind od RAM and VENDOR are installed on Toshiba Tecra R850 - 147 (Samsung ? Kingston ? OCZ ? .... ? )
regards
p.

Hi RuFiK,
On Toshiba website there is no information about vendor of RAM modules. This could be different from notebook to notebook so best is you remove the RAM cover and check it yourself. So you can check what vendor/model it is exactly.
Do you want to upgrade the RAM?

Questions about RAM speed.

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