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RAM Issues - Mixing?


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#1 CJustin

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Posted 26 February 2010 - 09:03 PM

I recently upgraded my laptop from 256 mb (I know, pathetic) to 1 gb.

However, the system freezes sometime on the boot when I put the two together (1280 mb) in any configuration.

Is mixing a 1 gb stick with a 256 mb stick not recommended, or have you heard of any issues relating to problems with this situation?

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#2 the_patriot11

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Posted 26 February 2010 - 11:30 PM

it can, especially if they require different voltages, but it could be faulty memory to. To double check and see I would try running each stick individually and see if you have the same problems. You could also run memtest86 on them (both together and individually) and see what happens. You can download memtest86 here http://www.memtest86.com/ or with most linux LIVE cds.

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#3 CJustin

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Posted 27 February 2010 - 06:21 PM

Thanks for the link.

I am using the 1 gig stick right now as I type this - it's a PC2700 333MHz 200-pin SODIMM for laptops - and it works fine on either slot.

At first I thought the second slot had a problem, but yesterday I switched the 1 gig to the other slot and it works fine. When I try any combination of the 1 gig and 256 mb sticks, it crashes or becomes unstable.

#4 the_patriot11

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Posted 27 February 2010 - 07:12 PM

Could be the two are incompatible with each other. sometimes when you mix voltages and timings it causes problems. If the BIOS supports it you could try playing with the voltages, I doubt the laptop will let you change the timings though, and I cant garentee changing the voltages will work either. Personally, if the one gig stick works fine on is own, Id leave the 256 meg out. if you need more ram, just purchase another identical 1 gig stick.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

If I don't reply within 24 hours of your reply, feel free to send me a pm.





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