OK, I've procrastinated enough... OCing my TBird

Aunty Em

Aunty Em

Well-Known Member
... it's time to take the TBird apart, unlock the processor, give it a new heatsink and overclock it. :)

Well I got a replacement soundcard for it so I might as well get on with it while I have the case open... plus I have plenty of pencils and sticky tape... :shrug:
 
Justintime

Justintime

Guest
cover it with tape after, i've got a pencil job on a t bird 1000 @ 200x7 (recently changed boards) in a mates rig pushing 2 yrs without refresh :D
 
Aunty Em

Aunty Em

Well-Known Member
Mines a 1000 too! It's running ME and Linux Mandrake 9.1 at the moment.

I intend just to use the multiplier initially. I should be able to over clock it to 100 x 13.5 with that.
 
Justintime

Justintime

Guest
what core is it? got any idea? If its AXIA or later you stand a good chance of 1400MHz + if not you might not get over 1100-1200 usually. If your board and ram can do 133MHz why not lower multiplier and up the fsb?
 
Aunty Em

Aunty Em

Well-Known Member
Where can I check whether it's AXIA or not... I know it's some thing to do with the number. My board is an ABit KT7A perfect for over clocking so I'm told and I upgraded it to the latest BIOS so it would take a 1.4 chip.
 
Justintime

Justintime

Guest
I the RAM PC133? if so i'd just drop multiplier and use the 133 bus, a 1.4Ghz on a 100fsb would actually be slower than a 1.33Ghz on 133fsb or even a 1.2 on 133fsb because the T bird was meeting its limits (some weird thing about multiplier and cache size) and slower 133fsb processers whopped the 1.4 100fsb badly. The KT7A is made for 133Mhz so it won't really be ocing the board (just make sure its a KT7A and not a KT7). Even if your RAM is PC100 it might just do cas 3 133 or even in alot of cases good RAM does cas 2 133 with a slight i/o voltage bump to say 3.5v.

[attachment]http://www.otcentral.com/forum/attachment.php?s=d51790a21f8a5e04dabe30f08633b2cc&postid=205604[/attachment]
 

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Aunty Em

Aunty Em

Well-Known Member
:D

Well at least somethings right.... my 2200+ is sadly an A core... :(

My board is the Rev. 1.0 version which is why it won't take an XP.
 
Justintime

Justintime

Guest
It will :D trust me lol, its a minor issue that sometimes cause a boot up fail but it works 99% of the time and works just dandy after bootup. (i've honestly never seen the problems with any rev.)
 
Aunty Em

Aunty Em

Well-Known Member
Well, I've joined the L1 bridges and covered it with tape.

So I just have to put it back, put the new heatsink on and replace the power supply with my spare 400W.

Then we'll see what happens...
 
Aunty Em

Aunty Em

Well-Known Member
K, it's done... now all fingers, toes, legs and arms crossed as I boot it up...

Update:

It booted fine

CPU @ 41C - I used the Globalwin with AS3 up to 2600+ so I don't think I'll have a cooling problem. :)
System @ 33C

PSU working fine - obviously
SB 4.1 soundcard working fine

I'm just clearing out some software, cleaning and defragmenting the HDD then I'll go into the BIOs and see what happens.
 
Aunty Em

Aunty Em

Well-Known Member
OK - I've taken the first step - User defined - 100 x 11... that proves it's unlocked. :)

1GHz @ 1100
44C
35C

I can go up to 14 x... I think.

Possible FSB values are:

100/33, 101/33, 103/34, 105/35, 107/35
110/36, 112/37, 115/38, 117/39, 120/40
122/40, 124/41, 127/42, 133/44, 136/34
140/35, 145/34, 150/37 and 155/38

according to my manual.

I'm not sure how the FSB works though... if someone would like to explain I'd be very grateful. :)
 
Justintime

Justintime

Guest
There has to be a 133/33 option as well, never use the 133/44. I'd try 133/33 x 10 for 1333MHz and fromt here on use the 133 times higher multiplier if you wanna go higher. The 133/44 means 44MHz PCI which most PCI devices cannot run at (hdds, pci cards etc..) the highest is usually about 38Mhz or less anything more and reliability can be a major issue. The KT133A chipset usually tops out at 145Mhz ish so if you ca get 145MHz / 34MHz pci working it'd be great, you need decent RAM though, remember when testing out high fsbs always keep the inital multiplier low so you won't overdrive the cpu too far (for e.g don't try 133x12 for a 1200MHz (12x100) cpu, chances are it WON'T do 1600MHz or it won't do it on default volts). FSB is always best, but remember to keep the PCI under 38Mhz so don't use any setting thats over. I'm going to sleep now :eek: good luck :D
 
Justintime

Justintime

Guest
:D :headbang:
i'm seriously losing it now :D Having delusions that i got a Ford T bird car :D Good luck and remember if everything goes non booting clear the CMOS and you should be reset. I'm going to sleep :tardbang:
 
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