Q: Memory upgrade issues (EDO vs non-EDO)

Q: Memory upgrade issues (EDO vs non-EDO)

Post by Sean Culha » Thu, 06 Feb 1997 04:00:00



Greetings!!

I'm about to upgrade my motherboard from a P75 to a PPro200,
and would like to upgrade the memory at the same time.

My P75 motherboard has 32Mb or memory: 2 x 16Mb 60ns non-EDO SIMMS.
I'd like my new system to have 64Mb in total.

My question is, should I:
   (a) buy 64Mb of EDO SIMMS for the PPro motherboard.
   (b) buy 32Mb of EDO SIMMS and also use the old SIMMS.

The only disadvantage I see to (a) is cost :-)
The main disadvantage to (b) is a (likely) performance hit.
Plus I paid an aweful lot of money for those 2x16Mb non-EDO SIMMS
in April 1995 :-) :-)

I suppose another concern is whether a PPro motherboard will
support a mix of EDO and non-EDO memory.  I've only looked into
the ASUS PPro boards so far, and their tech support claims that
they'll support 2x16Mb non-EDO and 2x16Mb EDO on the same board.

FWIW, I'm running Windows NTWS 4.0 and Linux 2.0.27

Any comments/suggestions/opinions are greatly appreciated!

Thanks in advance,
-- Sean.

 
 
 

Q: Memory upgrade issues (EDO vs non-EDO)

Post by Donovan Read » Fri, 14 Feb 1997 04:00:00


Asus is correct in that the board will _support_ both EDO and FPM SIMMS,
but the performance will suffer. In a memory-intensive OS, the memory
timings should really be the same across the board (pun intended, maybe
a bit weak). We would suggest that the cost may be the lesser of two
evils.


> Greetings!!

> I'm about to upgrade my motherboard from a P75 to a PPro200,
> and would like to upgrade the memory at the same time.

> My P75 motherboard has 32Mb or memory: 2 x 16Mb 60ns non-EDO SIMMS.
> I'd like my new system to have 64Mb in total.

> My question is, should I:
>    (a) buy 64Mb of EDO SIMMS for the PPro motherboard.
>    (b) buy 32Mb of EDO SIMMS and also use the old SIMMS.

> The only disadvantage I see to (a) is cost :-)
> The main disadvantage to (b) is a (likely) performance hit.
> Plus I paid an aweful lot of money for those 2x16Mb non-EDO SIMMS
> in April 1995 :-) :-)

> I suppose another concern is whether a PPro motherboard will
> support a mix of EDO and non-EDO memory.  I've only looked into
> the ASUS PPro boards so far, and their tech support claims that
> they'll support 2x16Mb non-EDO and 2x16Mb EDO on the same board.

> FWIW, I'm running Windows NTWS 4.0 and Linux 2.0.27

> Any comments/suggestions/opinions are greatly appreciated!

> Thanks in advance,
> -- Sean.

--

Donovan Ready,
Lindsay Computer Systems
http://www.jumpnet.com/~lcs

 
 
 

1. Mixed EDO/non-EDO?

Hi,

I'm about to invest in another 32M of RAM, in the form of 2 16M
72-pin SIMMs.  It'll be running alongside 2 8M 70ns plain-old
SIMMs;  will I still get benefits mixing EDO and non-EDO RAM?  
Should I bother?

Also, I only have 256k cache... is it worth upgrading to 512k?

Thanks for your help,
Ben

2. X and fvwm have 100% CPU usage???

3. Will EDO work with non-EDO ?

4. Is there a pixmap editor/viewer?

5. EDO and non-EDO mix - no X?

6. Problem "cannot execute binary file"

7. non-edo memory where, how much?

8. REPOST: perlmail-0.7 to sunsite

9. What difference between EDO DRAM and EDO parity RAM?

10. FPM vs EDO memory for alphapc 164

11. assus PCI/I-P55TP4XE - linux - 70ns non-edo ram

12. EDO vs FP ram, async vs burst-mode cache

13. SDRAM vs. EDO vs. Parity RAM?