Level 2 cache?

BWX

I just noticed something that worries me...

In DH Full system info, my level 2 cache speed is listed as 540 mhz. My cpu is running at 1621. (I think it's really 1622)- But should my level 2 cache be that speed???? It s a Palamino 1800xp OC'ed a little. 1.84 volts, 43 degrees. Thanks.


Description: x86 Family 6 Model 6 Stepping 2
Processor ID: 0383FBFF00000662
Processor Type: 3
Status: OK
Manufacturer: AuthenticAMD
Availability: Running/Full Power
Load Percentage: 0%
Current Clock Speed: 1621 MHz
Maximum Clock Speed: 1621 MHz
Level 2 Cache Size: 256
Level 2 Cache Speed: 540 MHz
Power Management Supported: False
Revision: 1538
Socket Designation: Socket A
Status Information: 3
Stepping: 2
Version: Model 6, Stepping 2
Voltage Caps:

scobywhru

L1 is usually full speed and L2 is usually half the speed of the processor atleast last time I payed attention to that kind of thing, which was backwith my P2 333mhz CPU but they might have lowered it to 1/3 the speed of the CPU or something like that

Spike

I will look into it and see if i can find out how that is by AMD cpu's.

ThinkHarder

AMD Athlon XP CPUs run there L2 Cache at full speed.

The_Neon_Cowboy

if it did they would of made it level one

CPUS...
L1 FASTEST-(super expensive ram/cache/less of it) FULL CPU SPEED OR 2/3
L2 NOT AS FAST- (cheaper ram/cache/more of it) USEALLY 1/2 1/3 CPU SPEED

cpu cacheing is... explained here
http://www.systemlogic.net/articles/00/10/cache/

EDIT: oops well thats how it is on older cpu's

craig588

*Whips out WCPUID*
CPU speed: 2521.35
L2 cache: 256K
L2 cache speed:2521.35
(just found ome new stable overclocked setings, so I havn't updated my sig yet)

Same on my PIII and my P4.

The_Neon_Cowboy

is that a slot pIII or the redesighned pga?

craig588

Thats on my AXP. No PIII chip could be that high.

close2thefl4me

there are p3 chips with 256k of l2 cache...

craig588

I'm talking about speed....Lets see a PIII (Even a Tuly) hit even 2GHz.

The_Neon_Cowboy

your confused....
the pIII your sig 933mhz.. slot or pga

and
celerons are acually redeighned PIII's now are they not?.....what you think thier based on pII's nope... they used to be untill the redesighn to the use of the p3 core when ever intel redid the like 1.5 / 2 ghz celerons .. they used the pIII CORE.... i have been told thats why the celeron even beats/or meats the p4 in a few benchmarks. ...

Calinerti

So if the L2 runs a full clock speed, whats the difference between L1 and L2?

RIV@NVX

Simply impossible. Highest OC-ing which I saw was around 1.6GHz on air. I doubt it can go much higher, even watercooled (because multiplier is locked).

BWX

I'll have to retest now that I have a new MoBo- Maybe DH System info misread my speed because I had an old MoBo before.

RIV@NVX

Post here when you do

HawK

Aida32 say's about cpu level2 cache: 256kb(on die full speed) (palamino)

Judas

.....full speedo here...

RIV@NVX

WCPUID and CPU-Z say full speed too...

Judas

..... actually, i haven't checked since i overclocked..but there shouldn't be a change..... I can say that it's weird seeing a bigger jump in preformance going from 2800+ to 3000+ compared to 2500+ - 2800+

BWX

CPU Properties
CPU Type AMD Athlon XP, 1680 MHz (5.75 x 292) 2000+
CPU Alias Palomino
CPU Stepping A5
L1 Code Cache 64 KB
L1 Data Cache 64 KB
L2 Cache 256 KB (On-Die, Full-Speed)

This is from AIDA on my 1800+ Palamino:
DH system info must have been reading it wrong.


CPU Physical Info
Package Type 453 Pin PGA
Package Size 4.95 cm x 4.95 cm
Transistors 37.5 million
Process Technology 6Mi, 0.18 um, CMOS, Cu
Die Size 128 mm2
Core Voltage 1.75 V
I/O Voltage 1.6 V
Typical Power 41.3 - 64.3 W (depending on clock speed)
Maximum Power 46.1 - 72 W (depending on clock speed)

CPU Manufacturer
Company Name Advanced Micro Devices, Inc.
Product Information http://www.amd.com/us-en/Processors/...30_118,00.html

CPU Utilization
CPU #1 0 %

Roadee

5.75x 292??????? Say what??

How about something like 11.5x 145!!!

BWX

Yeah, I saw that- Kinda weird.

Roadee

You have something wrong....something is corrupt or bad maybe. 3DM 01 is reading your info correctly, but nothing else seems to be. You have an 1800, 9700 Pro, and the NFS-7 MB. What cooling and memory are you using? Also what BIOS version are you using, and when was the last time you flashed/updated it?

BWX

I have the latest bios- they installed it at ExcaliberPC before I bought it and tested the board. I do seem to have some weird problems, like on the boot screen it doesn't report the correct FSB speed,- it will say the mem is running at 290 even if it is running at 292 or 294mhz--

but when I set it a certain FSB that do not get reported correctly- it still is actually going at that speed. I dunno- I figured it was because I'm using a Palamino after they tested the MB for a 400mhz fsb Barton. I cleared the Cmos though- so that should have no affect now-

I am using a messed up ram config though- I blame it on that-
I got 512mb PNY pc2700 in slot one and 256mb Crucial pc2100 in slot 3- BUT, it works, and it gives me a faster rig, so I'm not going back to single controller config- but I am planning on getting some faster matched sticks soon.

BWX

Oh, but I am OC'ing, so it's running at this speed....

Roadee

The memory is most likely the problem. Since you are running 2700 and 2100 memory......your memory is limited by the lesser stick....the 2100. With your set up......if you were to run a single stick of 512 PC3200 or PC3500 memory and a Barton 2500+......your system would ROCK!!! You would gain 4000+ pts on 3DMark 2001 at least. Just running the faster memory would give you a nice boost. The NF2 board is very picky when it comes to memory. I would suspect that is the corruption problem.

You should run Sandra memory benchmark with both sticks in....then just the 2700 in......to see what the scores are when compared. Having mixed sticks is most likely playing havoc with your mother boards memory timings.

BWX