definitions

[jimp]

hey what can I say, I am a noob and all the 2 & 3 letter acronyms have me confused, I have been trying to follow the quick and dirty A64 clocking guide but am afraid that what I think may be the things that zebo is talking about aren't really what he meant. is there a post here or a list some where that explains some of the acronyms? I mean like I know what FSB means (front side bus) but HT and HTT have me confused, my mobo has settings for HT frequency and HT width but I see nothing anywhere about HTT then there is the memory stuff , spd, T1. like I said I'm a noob. the board I have is a GA-K8NXP-SLI and a 3500+ and am not sure what the memory is any way ,
thanks for any help
Jimp

 

[globalcitizen]

HTT= HT frequency

Usually around 200 mhz. you have to increase this in order to get an effective OC. HT width is how much the frequency is pumped up. Default value is usually 4.

The formula should be when o/cing that HT frequency* HT width should never go above 1000 or you get stability problems.

For example. Currently my HT frequency is at 250 mhz and my HT width is at 3x giving me an O/C of 2.25 ghz on my stock speed of 1.8 ghz.

 

[Jeff7181]

HT can mean Hyper-Threading... Intel's technology that allows for multiple threads to be run at the same time.
HT can also mean Hyper Transport... the technology that AMD is using for their system bus.
HTT means (as far as I know) Hyper Transport Tunnel... and like globalcitizen said, it's the same thing as HT Frequency.
SPD means Serial Presence Detect... it's how motherboards detect the default RAM timings (2-3-3).
HT Width actually refers to the number of bits wide the HT bus is. Normally it's 16 (bi-directional), but some motherboards allow you to set it to 8.
LDT is a term also used... I don't know what the acronym stands for, but I've seen it used in place of HTT, which I believe is incorrect... Zebo uses it correctly, talking about the HT bus multiplier

 

[jimp]

Hey guys thanks a million. I think I'm ready to have another go at it, i can almost gaurantee I will be back with more questions!!!! but thanks to you 2 I think I know where to start now.

 

[jimp]

ok LOL, knew i'd be back,

The formula should be when o/cing that HT frequency* HT width should never go above 1000 or you get stability problems

my Bios has ht freuency listed like a multiplier (1x 2x 3x 4x ) and HT Width as 16 up and 16 down , 16 * 4 onl comes to 64 (no were near 1000) I was kind of excpecting mhz numbers for ht freuency after reading your posts. I do see a Max Memclock setting that gives me 100, 133, 166, 200 for values but I'm guessing this is what zebo was talking about when he mentioned something about memory dividers, other than that the only frequenc setting i see is cpu frequency under the inteligent tweaker menu. any ideas as to what else it might be called?
thanks again

 

[Jeff7181]

HTT x LDT = HT frequency

(200 x 5 = 1000)

 

[jimp]

ok but I am not at all sure what LDT is or what it might be called in my Bios ( dont think i saw anything labled LDT but I will check)

 

[Jeff7181]

Originally posted by: jimp
ok but I am not at all sure what LDT is or what it might be called in my Bios ( dont think i saw anything labled LDT but I will check)

It's the multiplier you mentioned... 1x, 2x, 3x, 4x, and 5x unless you have older hardware with only the 800 MHz Hyper-Transport bus, in which case it would only go up to 4.

 

[jimp]

ok , sorry , then it must be the other that Im confused about, if ht =LTD then where do I find HTT Which ever side of the equation is the freuency is what I am missing I see the multiplier listed as ht frequency in my bios but i ..........ok just went back to zebos post and read it again for the first time and now see the line

VERY IMPORTANT to keep in mind at all times is hypertransport needs to be around 1000, meaning LDT x HTT (aka FSB) ~1000 or less.

that is bold and then the part i needed to see is even high lighted with Parentesis" HTT (aka FSB) " ok and yes my LTD does go to 5x now I just need to figure out where they buried the FSB setting in the BIOS.
Thanks for being so patient with me asking the same question over and over while having the answer in front of my face the whole time!!!

 

[jimp]

ok what am i doing wrong

-set CPU multi to 6 or 7, this will take CPU out of equation

found a section in the BIOS labled "K8 CPU Clock Ratio with the settings of
x4 800MHZ
x5 1000 MHZ
x6 1200 MHZ
x7 1400 MHZ
x8 1600 MHZ
x9 1800 MHZ
x10 2000 MHZ
so I set it at x6 1200

-set memory to SPD and 100, this will take memory out of equation

I couldnt find a SPD setting for the memory but I found a "max memclock" setting and I
set it to 100,

-Increase HTT/FSB up until you fail to boot or there abouts, back down 5%, (HTT * 0.95), this is your max safe HTT.

so I took the LTD and set it at 4x and then thought "I wonder how much to bump the FSB each step" and decided to start at 5% so I took the FSB (CPU Frequency) to 210 and tried to boot. it was exciting seeing it get through the post, then it finished loading my scsi drives then it booted into windows, I was so thrilled when my login screen appeared then I typed in my password and as the pretty little XP jingle began to utter the first note this thing shut down like tomarrow wasnt comming! boom it was off, I thought it was all over with, I pushed the on button but nothing would happen so I thought maybe the power supply tripped a breaker. I shut the main power switch off and killed all the extra light and fan switches that I can kill, turned the main power switch back on and held my breath for like what seemed to be forever as reached for the front panel switch, I was so relieved to see those familuar blue lights lite up. ok so now what did I do that would cause that?

 

[Jeff7181]

Everything looks ok... the only thing I can think of that would cause it to do that is that maybe your SATA ports aren't locked. They should be, but I'm not positive cause I don't have any experience with that motherboard. Are you using SATA drives? If not, then you can forget about that being a possibility.

 

[jimp]

nope I have everything sata turned off in the BIOS one 120G maxtor IDE system drive one 400G 1394B external drive and one 360G SCSI RAID
I know I can get way past that with the easy tune 5 windows application but it bumps the memory frequency at the same level as the cpu frequency (210 and 210) so it will not take the memory out of the picture plus I think it resets to default no oc values at each boot so that would be no help any way.

 

[Jeff7181]

Originally posted by: jimp
nope I have everything sata turned off in the BIOS one 120G maxtor IDE system drive one 400G 1394B external drive and one 360G SCSI RAID
I know I can get way past that with the easy tune 5 windows application but it bumps the memory frequency at the same level as the cpu frequency (210 and 210) so it will not take the memory out of the picture plus I think it resets to default no oc values at each boot so that would be no help any way.

Do you have a Winchester? You didn't by chance write down the stepping did you? The CBBID Winchesters are kinda sucky when it comes to overclocking... seem to be VERY picky about memory dividers.

 

[jimp]

how do I tell? I'm sure it is though if that is the sucky one of the 2
cpuz says it is a AMD Athlon 64 3500+ Code Name ClawHammer brand ID 4 Package Socket 939 Technology 0.13µ Voltage 1.520v Specification AMD Athlon (tm) 64 processor 3500+ Family F Model 7 Stepping A Ext. Family F Ext. Model 7 Revision SH7-CG Instructions MMX(+). 3DNow(+), SSE,SSE2, x86-64 and the clocks are core speed 2211.4 Multiplier x11.0 HTT 201.0MHz cache is L1 Data 64KBytes L1 Code 64KBytes Level 2 512 KBytes

 

[peleejosh]

you also need to lock your pci and agp bus

 

[jimp]

you also need to lock your pci and agp bus

just set them at the lowest possible settings?

Found a list on another site that lists clawhammer as another core type, since it is not mentioned here am I to assume it is not a very good choice for oc'ng?

 

[GuitarDaddy]

I've seen a couple of people here at Anandtech overclocking the 3500+ clawhammer, and they seem to O/C like crazy. Like 2.6-2.75ghz

 

[jimp]

well thats a glimmer of hope,
wonder if anyone on here has a Gigabyte GA-K8NXP-SLI
I have gotten this one up to 2487 or something like that using the windows clocking tool that gigabyte sent with the board but I think it should do more if i wasnt bringing the memory bus up with the fsb

 

[jimp]

ok i finaly got enough guts back up to try and do this again, working on step 1 of the quick and dirty guide. havent had the computer shut down on me this time, only thing I am doing different is I don't have it in SLI mode and Im using x7 for the cpu instead of x6.
now I have made it up to 330 in 10 MHz Increments on the fsb and hasn't given me any problems yet, except that when I reached 290 it quit showing any improvment, still booting into wndows but easy tune 5 and zcpu both show me I am at 2034 by my calculations at 330 and x7 I should be running 2310 or there abouts, is this normal? do I keep going untill it wont boot as the guide says or do i consider 290 (the point it quit gaining) my max fsb?

 

[jimp]

well i guess you guys are right, if you ignore me long enough i WILL go away and quit asking stupid questions...bye