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Memory overclocking
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Author | Message |
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trader Send message Joined: 25 Jun 00 Posts: 126 Credit: 4,968,173 RAC: 0 |
I have an xmp enabled motherboard and xmp ram cosair 8gb 1600mhz right now running cpuz it says my ram is running at nowhere near 1600mhz i was wondering what kind of boost seti and my system in general would get by taking my ram up to at least the 1600mhz it should be running at I RTFM and it was WYSIWYG then i found out it was a PEBKAC error |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
I have an xmp enabled motherboard and xmp ram You won't see an amazing boost, but your system will not be running at optimum unless your RAM is doing what it should. You should be able to go into the bios and manually raise the RAM speed. If things get unstable, back off a bit. That being said, if things get dicey, you are better off slacking the RAM a bit to achieve system stability. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
trader Send message Joined: 25 Jun 00 Posts: 126 Credit: 4,968,173 RAC: 0 |
can you give me a little more info on how to exactly do that or know a link where i can go and read up on it. dont want to turn my freshly built system into a boat anchor. I RTFM and it was WYSIWYG then i found out it was a PEBKAC error |
Tazz Send message Joined: 5 Oct 99 Posts: 137 Credit: 34,342,390 RAC: 0 |
I had to bump the voltage up a little to get my 1600 MHz RAM to run at 1600, along with setting the speed manually in the BIOS. I think my voltage is at 1.53 </Tazz> |
SciManStev Send message Joined: 20 Jun 99 Posts: 6652 Credit: 121,090,076 RAC: 0 |
I'm running 12 Gig of Corsair DDR3 2000 RAM running at 1925 MHz. I also had to increase the voltage in addition to the speed. The BCLK frequency can be adjusted, which increases the CPU speed as well. The best performance can be achieved with a CPU with an unlocked multiplier. That way you can work the BCLK frequency, and make adjustments with the multiplier to keep the CPU speed where you want it. Over clocking anything is really a matter of trial and error. The basic rule is increase frequency until there is a problem, then up the voltage a bit until the problem goes away. Then up the frequency a bit further. Your system will pull more power as voltages and frequencies climb, which means more heat. I have two fans directly over my RAM chips, which helps keep the operating temps down. I also have 4, 8 inch fans in my tower, plus water cooling on the CPU and GPU's. Steve Warning, addicted to SETI crunching! Crunching as a member of GPU Users Group. GPUUG Website |
Sirius B Send message Joined: 26 Dec 00 Posts: 24879 Credit: 3,081,182 RAC: 7 |
We know that overclocking Processors and memory is possible, if you know what you are doing. How much increase in RAC does that give you? 10%, 20%, 30% ?? Ah, the joys of self build. |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
I used the XMP settings on my i7-860 to run the memory at 1600. Running 4 tasks at a time, with HT enabled, it had a RAC about the same as the 5 other i7-860's I run at work with 8 tasks at once. Running 8 tasks at a time it had a RAC of about 20% more than the other machines. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
Keith White Send message Joined: 29 May 99 Posts: 392 Credit: 13,035,233 RAC: 22 |
I have an xmp enabled motherboard and xmp ram First, what exactly does CPUZ says your RAM is running at? You should see the DRAM Frequency (Timings area in the Memory Tab) around 800MHz. The solution should be as easy as booting up into the computer's BIOS, going to the memory page and selecting the XMP profile for DDR3-1600. "Life is just nature's way of keeping meat fresh." - The Doctor |
trader Send message Joined: 25 Jun 00 Posts: 126 Credit: 4,968,173 RAC: 0 |
I have an xmp enabled motherboard and xmp ram cpuz in one screen says.. dram freq 800.1 fsb:dram 1:6 cl 9 trcd 9 trp 9 tras 24 cr 2t in another screen it says.. jedec#2 jedec#3 jedec#4 xmp-1600 freq 518mhz 592mhz 666mhz 800mhz cas 7.0 8.0 9.0 9.0 ras to cas 7 8 9 9 ras precharge 7 8 9 9 tras 19 22 24 24 trc 27 30 34 41 command rate 2t the memory i have is cosair vengeance xmp memory 2x4 8gb called cosair and read the info on the memory just to make sure i did get a mis ship I RTFM and it was WYSIWYG then i found out it was a PEBKAC error |
Keith White Send message Joined: 29 May 99 Posts: 392 Credit: 13,035,233 RAC: 22 |
I have an xmp enabled motherboard and xmp ram Then everything is OK. DDR stands for double data rate (not Dance Dance Revolution in this case ;)) which means for every clock cycle you get two data fetches so it looks as if it's running at twice the clock speed. So 800 MHz is correct as is all the other settings CPUz is reporting. The first screen (Memory) shows you what timings it's currently using while the second screen (SPD) shows you the choice of factory settings recorded on the memory stick itself. "Life is just nature's way of keeping meat fresh." - The Doctor |
trader Send message Joined: 25 Jun 00 Posts: 126 Credit: 4,968,173 RAC: 0 |
ok thank you for the help and information!! I RTFM and it was WYSIWYG then i found out it was a PEBKAC error |
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