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Author Topic: MSI 975X PLATINUM MOTHER BOARD AND WINDOWS 7 64-BIT  (Read 4515 times)

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rmorti

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MSI 975X PLATINUM MOTHER BOARD AND WINDOWS 7 64-BIT
« on: 22-December-10, 07:00:04 »

My wife's PC was built in Akihabara at a store called Gtunes.

MSI 975X Platinum motherboard
Pheonix award bios V6.00PG
Intel 2.39Ghz Core 2 6600@2.4Ghz
2GB DDR2 557Mhz RAM

Installed a brand new Hitachi 7200RPM 1TB SATA HDD prior to install of OS.

When I tried to use 4x2GB of Elixr 1.8V DDR2 800 windows 7 Ultimate 64-bit would not install updates properly.  It kept getting errors during the installation of 13 critical updates.  I was advised to just use the original 2GB of DDR2 557Mhz RAM and unplug all devices except for a PS2 keyboard.  I did this and managed to install and properly update the OS to Windows 7 ultimate 64-bit.

It has been running stable for 5 days now with just 2GB of RAM.

So, now I've got 8GB of DDR2 800Mhz RAM sitting here and am wondering if I can safely install it in the motherboard without having some huge unrecoverable error occur.  When I put it in the PC during the update of OS I got some serious errors including a lost boot sector manager which forced me to start from scratch.  I really don't want to go through all that again.

I know the RAM is faster than what the moboard is rated for, but I was told that the BIOS would detect it as 667Mhz RAM and use it without problems.

Opinions?
« Last Edit: 22-December-10, 14:02:44 by rmorti »
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Mike

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« Reply #1 on: 22-December-10, 07:14:42 »

You should test the sticks using >>Memtest86+<<.  Test all sticks together overnight, or, a quick and dirty method, test the sticks running test#5 20x and test#7 20x.  If you get any errors, then you need to start testing individual sticks.  Would you also provide a more complete list of you components including the PSU and the amps on the +12v rail.  Read the >>Posting Guide<<.
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Froggy Gremlin

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« Reply #2 on: 22-December-10, 07:15:16 »

667 is supported, however, 800's are backward compatible, so maybe just a DRAM voltage increase up to 1.95V's may be needed since filling all the slots with 8GB total.
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rmorti

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« Reply #3 on: 24-December-10, 07:37:39 »

Sorry for late reply.

Video card is an MSI N460GTX Cyclone 1GD5

Mouser MUS-500-TW power supply
Total peak 500W
Total output 450W

DC Output    +3.3V      +5V        +12V1       +12V2          -12V       +5VsB
MAX A              30A       28A           17A           15A             0.3A        2A

Bumping voltage up on RAM wont fry it?
« Last Edit: 24-December-10, 14:49:16 by rmorti »
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Jack

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« Reply #4 on: 25-December-10, 13:23:36 »

1.95V is certainly not a critical setting.  Don't worry about damaging your memory with 1.95V.
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rmorti

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« Reply #5 on: 26-December-10, 06:13:27 »

Well I tried it and it didn't work.  Got a black screen at bootup and then after putting old memory back inside I had to do an OS repair.  So much for that idea.
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rmorti

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« Reply #6 on: 28-December-10, 03:30:44 »

It has been suggested to me in another forum that the root of my problem lies in the less than stellar PSU installed in this PC.   Before I drop another penny into this PC I would appreciate a second opinion.  A new PSU would be the cheapest fix I think.  My PSU specs are listed in earlier post.

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