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| Thread ID: 12237 | 2001-10-20 22:15:00 | Mixed RAM | Guest (0) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 22118 | 2001-10-20 22:15:00 | I have a pC with an AMD 233mmx processor with a FSB of 66MHz. I recently installed 64MB SDRAM. I left two 8MB EdoRAM in the available simm slots. The system has detected all the RAM and shows I have 80MB RAM. I read somewhere that one should not mix RAM. Why is this? Will I do my system any harm with my present arrangement? | Guest (0) | ||
| 22119 | 2001-10-20 22:36:00 | In theory you should'nt mix ram .As they are made by different manufactures they can use different materials and processess to be competitive and theres always a chance different brands may no play well together. In Practise i have never had a problem .Worst case would be the ram just wont work the risk of destroying your machine vitually impossible. ==Orac== |
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| 22120 | 2001-10-21 01:07:00 | Pay to check with motherboard manufacturer (EG:mobo manual or online) & see what they say about mixing 72pin & 168 pin ram. I too have a mobo with 72 & 168 pin & if I wanted to use both types of ram there is sequence to follow.Personally I would sell the 2x8mb edo chips & buy another 168pin sdram while it is super cheap. cheers Steve |
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| 22121 | 2001-10-21 02:46:00 | A problem occurs when the system runs too fast for some of the memory. Your 66MHz bus will continue to run on the old SIMMs as well as the new memory. If however, you had changed (a jumper?) things so that the bus ran at 100MHz or 133MHz, I guess that the EDOs would not keep up. And the computer would (1) refuse to start or (2) not recognise the 'slow' memory, or (3) run for a while then crash. You might not be able to use the 72 pin ones on your next computer ... but you are not hurting this one. | Guest (0) | ||
| 22122 | 2001-10-21 02:50:00 | Hello Bob, Your post is somewhat unusual,in the fact that you have successfully managed to get the EDO and SDR ram working together, there was quite a few motherboards made ealy on that were supposed to support this option but in practice more often than not they caused problems getting both to co exist and work properly, so you should feel happy and somewhat smug that yours is. Bottom line is if the bios is recognising it properly and the PC is running properly, leave well alone and be happy. Alan |
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