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Windows 7: Ram question

11 Jul 2009   #11
zigzag3143

Win 8 Release candidate 8400
 
 
ram question

Quote   Quote: Originally Posted by Gilly View Post
no, but im gonna get 64bit if i can install 6gbs how much does 32 bit run,, isit 3.7gbs would i get a performance increase using 64 bit with 4 gbs what a the downsides of running different types of ram ? im getting conflicting messages when looking through the internet some say not at all , some say yes aslong as its both DDr2

Ok now that we have the info I might even be able to make sense. You can run 64 bit, and should. You may not need 6gigs but if the specifications of both ram modules are exactly alike (timing, latency, speed, type, etc) and you motherboard has more than 4 slots for ram (amd it should) you can probably get away with mixing different Brands of ram. I WOULDN'T but if after you have used it with 4 gigs you feel you need more then you might be able to go for it.

Hope this has helped

Ken


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11 Jul 2009   #12
Frostbite

 

As zig has stated mixed memory can often cause memory problems. If you do want to try running with 6gig than I would put the new memory in slot1 and 3 and the old memory in slot 2 and 4 since its dual channel. You can see this on the motherboard as the slot1,3 will be the same colour as will slot2 and 4. You can check what current slots are in use by going to the SPD tab in CPU-Z
Some info on dual channel memory
Dual-channel architecture - Wikipedia, the free encyclopedia

If you do get any errors like blue screens then just remove the old memory. A good program for testing for memory errors is memtest86 http://www.memtest86.com/ or the Windows Memory Diagnostics Tool built into Windows.
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11 Jul 2009   #13
slithernet

Windows 7 Ultimate x64 Retail RTM, Ubuntu 9.10
 
 

Mixing both kinds of ram wont be a problem, they r both ddr2 800. For best proformance they should be matched, but i wouldn't worry bout it if i were u.

if u had ram running at 666 and were buy'in 1066 i would tell you not to mix them because all the ram would run at 666.
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11 Jul 2009   #14
zigzag3143

Win 8 Release candidate 8400
 
 
ram

Quote   Quote: Originally Posted by slithernet View Post
Mixing both kinds of ram wont be a problem, they r both ddr2 800. For best proformance they should be matched, but i wouldn't worry bout it if i were u.

if u had ram running at 666 and were buy'in 1066 i would tell you not to mix them because all the ram would run at 666.

Im more concerned with the cas timing and latency. If the op bought 1066 and it ran at 666 wouldn't be the biggest problem in history it would work just more slowly. I the cas timing or latency is different he might have random freezes, BSOD, and other stuff that is tons more difficult to diagnose. I have 667 ram running @ 533 and it is completely stabile.

ken
My System SpecsSystem Spec
11 Jul 2009   #15
Frostbite

 

Look like there both Timing: 5-5-5-18 from the screenshot and website so should be ok with that.
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11 Jul 2009   #16
zigzag3143

Win 8 Release candidate 8400
 
 
ram quewstion

Quote   Quote: Originally Posted by Frostbite View Post
Look like there both Timing: 5-5-5-18 from the screenshot and website so should be ok with that.

I Completely agree. Im just cautious abt mem mixing Had too many problems. Nice post before frostbite

Ken
My System SpecsSystem Spec
11 Jul 2009   #17
Frostbite

 

The biggest problem I forsee is making sure the dual channel is set correct. As from the wiki link.
Quote:
If the motherboard has two pairs of differently colored DIMM sockets (the colors indicate which bank they belong to, bank 0 or bank 1), then one can place a matched pair of memory modules in bank 0, but a different-capacity pair of modules in bank 1, as long as they are of the same speed. Using this scheme, a pair of 1 GB memory modules in bank 0 and a pair of matched 512 MB modules in bank 1 would be acceptable for dual-channel operation.
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11 Jul 2009   #18
slithernet

Windows 7 Ultimate x64 Retail RTM, Ubuntu 9.10
 
 

Quote   Quote: Originally Posted by zigzag3143 View Post
Im more concerned with the cas timing and latency. If the op bought 1066 and it ran at 666 wouldn't be the biggest problem in history it would work just more slowly. I the cas timing or latency is different he might have random freezes, BSOD, and other stuff that is tons more difficult to diagnose. I have 667 ram running @ 533 and it is completely stabile.

ken
I work at a pc repair shop and install mixed memory on a daily basis, the only time you get BSOD and random freezing from mixed RAM is if u set custom timings in BIOS.
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11 Jul 2009   #19
zigzag3143

Win 8 Release candidate 8400
 
 
ram

Quote   Quote: Originally Posted by slithernet View Post
I work at a pc repair shop and install mixed memory on a daily basis, the only time you get BSOD and random freezing from mixed RAM is if u set custom timings in BIOS.
true been there done that. mixed memory isn't an absolute failure but I have also had to go back in and diagnose why someone elses emory with no label on it was cuasing bsids that wouldn't allow a boot. I always err on the side of caution when its someon elses stuff.

My own I dont care cause I know i can work it out

Ken
My System SpecsSystem Spec
15 Jul 2009   #20
VeeEss

 
 

You don't need a program to tell you if your system can run 64-bit. Look at the processor, a Phenom X4 runs golden as x64. Now, just make sure to install x64 OS to take advantage of it.

With the sticks you are comparing, you will likely not notice much of a difference from the type of RAM, just from the increase in quantity. Both types of sticks are DDR2-800 with 5-5-5-18 timings. Of course the ones you are purchasing are XMS so there might be a slight improvement from the sticks solely because of the quality of the IC's. Since you are running an AMD, you are more than likely going to benefit from finding CL4 sticks (4-4-4-12 would be a noticeable improvement). Remember, as a rule of thumb, AMD benefits more from tight timings, Intel from speed.

Do not keep the existing for two reasons. As everyone has said already, mixing memory is bad. Brand is unimportant, the IC's make all the difference. Different IC's will have different differential clock inputs and transitions, readily causing hangs with the memory controller. The other reason is speed. The integrated memory controller in the Phenom X4 is dual-channel not triple channel. Run even number of sticks on that system.
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