ram issue!! please do help

June 29, 2012 at 22:50:16
Specs: Windows 7, core 2 4300@1.8 ghz
i hav 2 rams of diff speeds but they are not working together .....what should i do?

See More: ram issue!! please do help

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#1
June 29, 2012 at 23:24:43
Duuuhhhh. If either one will work alone but they won't work together then get another stick the same as one that you already have and sell the odd-one-out.
Without details of your motherboard and the ram you are talking about we cannot tell you which would be the better for you to keep and which to discard/sell.

Goin' Fishin' (Some day)


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#2
June 29, 2012 at 23:26:04
We need alittle more info than that.

What are the RAM speeds and the RAM type?

What motherboard do you have?

I am a hardware guy not a software guy but i try to help.


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#3
June 30, 2012 at 03:10:09
well both work ..but dont work together...both are ddr2 1gb with diff speeds 800mhz and 667 mhz

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Related Solutions

#4
June 30, 2012 at 03:12:02
Does the 800MHz run on the board?

I am a hardware guy not a software guy but i try to help.


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#5
June 30, 2012 at 03:13:55
yes .it works

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#6
June 30, 2012 at 03:15:36
Sell the 667 MHz stick and get another 800MHz stick the same capacity.

I am a hardware guy not a software guy but i try to help.


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#7
June 30, 2012 at 03:19:03
so.. they wont work together??

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#8
June 30, 2012 at 03:20:44
You motherboard probably doesn't support using different sticks with different bus frequencies.

I am a hardware guy not a software guy but i try to help.


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#9
June 30, 2012 at 03:23:16
and what do you mean by same capacity??

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#10
June 30, 2012 at 03:24:38
Same amount of gigabytes (GB) or megabytes (MB).

I am a hardware guy not a software guy but i try to help.


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#11
June 30, 2012 at 03:26:29
i thought of buying 2gb 800mhz...will both 1g and 2g work ??

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#12
June 30, 2012 at 03:27:22
Should work, just as long as they are 800MHz and DDR2.

I am a hardware guy not a software guy but i try to help.


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#13
June 30, 2012 at 03:31:31
thank you!!

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#14
June 30, 2012 at 03:35:44
HI Shatir,

for a completely accurate recommendation asto which memory etc. is best, the make and full model number of the computer concerned (and/or the mobo) is required.

Without this, replies might be guessing.

Richard asked for this information in #1 and yet by #12 you still have not provided.

Good Luck - Keep us posted.


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#15
June 30, 2012 at 03:40:09
what else should i provide??

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#16
June 30, 2012 at 03:42:04
Mike said- the make and full model number of the computer concerned (and/or the mobo) is required.

I am a hardware guy not a software guy but i try to help.


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#17
June 30, 2012 at 03:47:00
how can i get that??

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#18
June 30, 2012 at 03:51:15
Type system information in the start menu and press enter, most of the computers info will come up.

I am a hardware guy not a software guy but i try to help.


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#19
June 30, 2012 at 03:55:42
OS Name Microsoft Windows 7 Ultimate
Version 6.1.7600 Build 7600
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name ABC-PC
System Manufacturer INTEL_
System Model D946GZIS
System Type X86-based PC
Processor Intel(R) Core(TM)2 CPU 4300 @ 1.80GHz, 1800 Mhz, 2 Core(s), 2 Logical Processor(s)


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#20
June 30, 2012 at 03:56:54
is this sufficient enough

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#21
June 30, 2012 at 03:59:33
Yes thats sufficient, you can only use 667MHz RAM in your system, so you can get a 667MHz 2GB stick.

http://www.intel.com/support/mother...

I am a hardware guy not a software guy but i try to help.


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#22
June 30, 2012 at 04:00:29
but i am using 800mhz now!

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#23
June 30, 2012 at 04:00:57
Its underclocking the RAM to 667 MHz.

I am a hardware guy not a software guy but i try to help.


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#24
June 30, 2012 at 04:03:36
so ram more than 1gb cant be used??

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#25
June 30, 2012 at 04:05:47
No, you can use 2GB max per slot but it has to be DDR2-667 RAM.

I am a hardware guy not a software guy but i try to help.


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#26
June 30, 2012 at 04:15:40
okay got it ....and if i buy 2g 667 mhz, will it work with 1g 667 to give a total 3g??
and will the case be same if 2g 800mhz and 1g 800mhz both underclocked

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#27
June 30, 2012 at 04:17:10
Yep, should work fine.

I am a hardware guy not a software guy but i try to help.


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#28
June 30, 2012 at 04:21:08
and will the case be same if 2g 800mhz and 1g 800mhz both underclocked....because i am unable to find 667 ddr2 online??

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#29
June 30, 2012 at 04:25:31
http://www.amazon.co.uk/dp/B000JJR8...

I am a hardware guy not a software guy but i try to help.


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#30
June 30, 2012 at 04:36:31
thanks you!! :)

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#31
June 30, 2012 at 05:09:27
Your CPU runs at 800MHz FSB therefore you should be using DDR2-800 RAM. If you use DDR2-667, you'll take a performance hit. If you pair up DDR2-800 & DDR2-667, both will run as DDR2-667 & you'll take a performance hit. And you should be manaully configuring your RAM settings (volatge & timings) in the BIOS rather than just accepting the default settings.

http://ark.intel.com/products/28024...

http://www.crucial.com/store/listpa...

http://ark.intel.com/products/23503...


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#32
June 30, 2012 at 05:25:12
Riider, look at this website- http://www.intel.com/support/mother...

I am a hardware guy not a software guy but i try to help.


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#33
June 30, 2012 at 07:22:17
It doesn't change the fact that DDR2-800 is the correct RAM to be running with an 800MHz FSB Core 2 Duo. Any other speed will result in reduced performance. The crappy Intel board will most likely underclock it to 667MHz, but it should still work regardless.

And the article you posted is from 2007. Crucial keeps their site up to date & guarantees compatibility. If they listed DDR2-800 as an option, you can be fairly sure it will work.


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#34
June 30, 2012 at 07:46:51
hi riider,
I have two ddr2 rams of 1gb with speeds 800mhz and 667mhz.
can you explain what changes to be made in the BIOS setting so that both RAMS work together at 667mhz.

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#35
June 30, 2012 at 08:44:36
When you install ram modules that have different max mhz speeds, the mboard's bios will automatically run all the ram modules, max, at the speed of the slowest module.

The mhz spec and the PC2-xxxx spec themselves are backwards compatible - a faster ram module will run fine at a slower speed.
However, there are also other things that determine whether the memory module is 100% compatible with installing it in a specific mboard model.
Memory modules that are not 100% compatible may each work fine in a mboard when installed by itself, but NOT work fine when one or more different memory module is installed.

What you're supposed to do is to go to a ram manufacturer's or ram distributor's web site and use a ram configurator or similar to look up which ram module part numbers they have listed (are compatible) by using your retail mboard model or brand name system model to search with.

If you already have ram, if it's brand name ram, usually if you go to that brand name's web site you can search using the module's part number, or search using the retail mboard model or brand name system model, and find out whether it's listed for your model. If it's generic ram, that may be difficult or impossible to determine.

If you DO have brand name ram, you should be able to determine whether only one module is not 100% compatible, or both are not compatible, by doing that. .

In any case, if the ram modules you have installed pass a memory diagnostics test, in your case when both ram modules are installed, then it should work fine with your mboard.

If you want to try a memory diagnostic utility that takes a lot less time to run a full pass than memtest86 does, this one is pretty good - Microsoft's
Windows Memory Diagnostic:
http://oca.microsoft.com/en/windiag...
Windows Memory Diagnostic is limited to testing only the first 4 gigabytes (GB) of RAM.
It can be toggled (press T) to do a standard or a more comprehensive set of tests - use the default 6 test one first - if it passes one pass of that, use the latter one. A few of the tests in the latter set are intentionally slower.
If you don't have a floppy drive, see the Quick Start Information at that Microsoft link for how to make a bootable CD of the Windows Memory Diagnostic (you need Windiag.iso - you don't necessarily need to use the program they mention to add it to the CD).

The ram will probably NOT pass the tests when both modules are installed in your case.



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#36
June 30, 2012 at 19:04:39
Your Intel D946GZIS mboard model supports using....
- CPUs that use 667 mhz, 800 mhz, or 1,066 mhz core speeds
- 667 mhz, 800 mhz, and 1,066 mhz DDR2 ram

667 mhz ram modules always use the standard JEDEC DDR2 ram voltage as far as I know, but SOME 800 mhz and 1.066 mhz modules DO NOT.

If you mix modules that have a different ram voltage specified for them - on the label on the module and/or in the specs for the module - the bios will automatically use the lowest ram voltage when it reads the SPD chip info that's on each of modules - the modules a higher (or lower ? ) ram voltage is specfied for will probably NOT work properly.

There are other reasons ram modules may not work properly when used together.


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