Memory Chips Speed?

[OliverNo1_1]

Having just purchased a 9700NP for my downstairs system-i have inspected the ram , which is "Samsung 310"-am i correct in assuming that this referes to its max clock speed (310\620)?

In the past i have had Infineon memory which has been labelled slightly differently ie 2.8ns 3.0ns etc etc. Also the card hasnt shipped with the power conector, am i right in presuming i can use a spare floppy power connector?

Any help would be appreciated.

 

[OliverNo1_1]

After a little Googling i have come across this article:-

My memory has this code
K4D26323RA-GC2A etched on it-which accoring to Samsung is ok to 350Mhz.

http://www.samsung.com/Products/Semiconductor/GraphicsMemory/DDRSDRAM/128Mbit/K4D26323RA/K4D26323RA.htm

Am i reading this wrong-or have i just been lucky for once?

 

[cleeve]

Looks right to me.

The weird part is the last two digits... "2a"

On the other, slower ram the last two digits represent the memory speed in nanoseconds.
the "33" is rated at 1000/3.3 = 303 mhz
the "36" is rated at 1000/3.6 = 277 Mhz

If your memory is rated for 350 Mhz, they should have made the last two digits "28" (for 2.8 ns) instead of "2A":
1000/2.8 = 357 Mhz

------------------
Radeon 9500 (modded to PRO w/8 pixel pipelines)
AMD AthlonXP 2400+ (O/C to 2600+ with 143 fsb)
3dMark03: 3586

 

[OliverNo1_1]

Agreed-Just out of interest with the 9500-9700 mod is it still a bios flash\driver optimization?
If so does that mean you cant use up to date drivers?

Cheers.

 

[cleeve]

There is both a software mod (hacked drivers, usually come out with a new version a week or so after an official release) and a hardware mod (that requires a bit of conductive pen and a BIOS flash).

------------------
Radeon 9500 (modded to PRO w/8 pixel pipelines)
AMD AthlonXP 2400+ (O/C to 2600+ with 143 fsb)
3dMark03: 3586

 

[OliverNo1_1]

I presume that the software mod is now the one of choice?

In Windows-is your card recognized as a 9500 np or a 9700 np?

 

[cleeve]

My particular card modded from a 9500 non-pro to a 9500 PRO because I didn't have the 256 bit memory bus.

With the softmod, windows recognizes my card as a 9500 non-pro.

The software mod is the method of choice because it doesn't mess with your warranty. That's what I'm currently running.

However, I'm going to mod my cooler and add RAMsinks soon, so my warranty will be void anyway. When I do that I'll hardmod the card so I can use any driver I like.

Hardmodded, the card will be detected as a true 9500 PRO.

------------------
Radeon 9500 (modded to PRO w/8 pixel pipelines)
AMD AthlonXP 2400+ (O/C to 2600+ with 143 fsb)
3dMark03: 3586

 

[OliverNo1_1]

Thats the 64Meg Card then yes?-Ramsinks i just cant seem to get hold of them in England(not for a reasonable price anyway)

 

[Ion]

Was there a 64mb R3xx card?

 

[OliverNo1_1]

Right at the beginning im 90% sure there was. No doubt somebody will now prove me wrong.............

 

[cleeve]

Nope, I have the 128 meg version.

If the 128 meg card has the memory chips in a straight line (the 9500 PRO bcb), then it has a 128 bit memory interface.

If the 128 meg card has the memory chips in an "L" shape (the 9700 PRO pcb), then it has a 256 bit memory interface.

Yes, they did make 64 meg 9500 non-pros.

As for ramsinks, if you can't buy em new, find yourself heatsinks off of old pentiums or even 486s, and use a hacksaw to cut them into squares...

------------------
Radeon 9500 (modded to PRO w/8 pixel pipelines)
AMD AthlonXP 2400+ (O/C to 2600+ with 143 fsb)
3dMark03: 3586

 

[OliverNo1_1]

Right have flashed the bios-and started to use 3dtweak to O'C the card, but am getting artifacts with the memory on a measley 310!-how can this be when the memory is rated at 350?

I am running the core at standard-so that isnt a factor-when i find the limit for the memory I'll start killing the Core!

 

[cleeve]

You should OC the core first because it will effect the memory OC.

I don't know what's holding your memory back... you might want to see if there's a voltage mod out there for ya... but that's dangerous stuff.

------------------
Radeon 9500 (modded to PRO w/8 pixel pipelines)
AMD AthlonXP 2400+ (O/C to 2600+ with 143 fsb)
3dMark03: 3586

 

[Willamette_sucks]

Voltage:
9800>9700
Pro>non-Pro

The memory could probly run at 350, with enough juice.


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