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Crucial uses Samsung?

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azanon

Registered
Joined
Aug 26, 2001
Location
Miami, FL
My 2, 512mb sticks of crucial just came in a few days ago - i ordered them directly from crucial. The memory chips on them are Samsung, not Micron! They are PC2700, 2.5-3-3/7 memory sticks, just fyi.

Granetd im running two of them in an i845pe mb, but i was very dissapointed when i switched the timings to 2 2-2/5 and it wouldnt even boot into windows, even at default frequency.

Azanon
 

Rcoe

Member
Joined
Jul 20, 2001
Location
Michigan
I had the same problem with some crucial pc2100 last year. It did not perform very well and was made with samsung chips.

I switched to Corsair at that time and have not had a memory problem since.
 
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azanon

Registered
Joined
Aug 26, 2001
Location
Miami, FL
I have an overclocking question for my system. I got a p4 2.4B processor as well, and though it is BO stepping, it was boxed on 10/23/2002 so i'm anticipating that it will overclock very high. I also have very good cooling.

My question is this - since i cant even run cas 2 timings even at default memory frequency, should I: 1. just take the FSB (and CPU resultingly) as high as it will go above default FSB frequency with the spec 2.5-3-3 memory timings or 2. Set my DDR:FSB ratio from 2.5 (current default setting) to 2.0, and adust the memory timings to 2-2-2-5, and then jack up the FSB (and CPU resultingly) as high as it would go?

#1 would provide maximum memory bandwidth, but poor timings #2 would probably provide a bandwidth below even default 333mhz, but would have fast memory timings.
> both options, of course, raise my FSB and CPU speeds which is good.

Thanks,

Azanon
 

deathstar13

FSB FRIEK
Joined
Dec 24, 2001
number 1 most definatly.
cas speed doesnt come close to the advantages of higher fsb speeds.

c2 will get u 100-150 points in bandwith benchy
c2.5 at higher fsb will net u 800-1000 pionts more most times.

cas timings is just a fine tuning tool to me.its not that important.

my lowly little corsair 2100 is benching out at ddr400 specs.and im only less than 100points lower in the bandwith score than the 3200 c2.
 

attack

Member
Joined
May 23, 2002
death's right, FSB is critical, especialy when you start getting up around 200. the gained bandwidth from 200-210 FSB compared to 190-200 is like 2x more...don't know if it's a sandra bug or what, but that's what I've been seeing.
 
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azanon

Registered
Joined
Aug 26, 2001
Location
Miami, FL
on both scenarios, the FSB will be going higher from default 133mhz. In other words, being quad pumped, it will be starting at 533mhz and going higher with choice #1 and #2.

The only question is what to set my memory ratio - either fast timings with lower frequency on my memory, or slower timings but faster memory frequency.

Thanks,

Azanon
 

larva

Inactive Moderator
Joined
Jul 12, 2002
hard to beat the MHz

If you can get the 4:5 or better yet the 3:4 multiplier working stably it is very beneficial to 845 systems. Even if you have to back the timings down. But as you said you can't use the fast timings at default speeds, so there really isn't an option.

Also, it takes a lot of ram voltage to get timings like 2 2 2 5 working on 845's. My ram (Kingston Value Ram 2700) is running at 162fsb with the 3:4 multiplier for 216/432MHz on a 845e board. It does so at 2.7V and allows 2 3 3 7 timings. Very likely your ram will work at default speeds at 2 2 2 6, and if it doesn't it probably won't reach 400+ clock speeds even with the timings backed down.

PS-that's wild about the Crucial w/Samsung chips. Never thought I would see that day. Micron must be having trouble producing the stuff or Samsung is dumping the chips at a price below Micron's production cost.