TB 1700+ - I gotta try this OC'ing thing sometime...

[iwillrefuse]

After accidently frying the hell out of my previous Athlon 1700XP Pal (You actually do need all of the fan blades...2 won't get the job done , ordered and recieved the new 1700XP TB, and was able to overclock to 1800XP with no issue. However, being new at this, I've still got a few questions...

First, I'm using an Abit KR7A-RAID with the latest version of the bios that supports up to the TB 2100XP. I set it as a 1800XP with no issue; 1900XP attempted to boot Win XP, but failed. At 2000XP, I couldn't get POST. Now, setting the multiplier is easy enough, but I'm unsure about voltages. From what I can tell, I can only step this up to 1.65 Volts, nothing higher. There are also 2 other voltage variables that I know nothing about, so felt it best that I just leave them all alone. Simply put, do I need to adjust the voltages to achieve a higher multiplier, and how risky is this to the chip. Also, is the voltage limits a limitation of the MB?

Also, for sheer curiosity, why does OC'ing result in Windows boot errors? Is this for lack of voltage, or the CPU just freaking out.

Oh, and one last thing. What's the deal with the revision A/B thing - and is there any easy way to tell what I have?

Thanks,

Matt

 

[chizow]

Originally posted by: iwillrefuse
After accidently frying the hell out of my previous Athlon 1700XP Pal (You actually do need all of the fan blades...2 won't get the job done , ordered and recieved the new 1700XP TB, and was able to overclock to 1800XP with no issue. However, being new at this, I've still got a few questions...

First, I'm using an Abit KR7A-RAID with the latest version of the bios that supports up to the TB 2100XP. I set it as a 1800XP with no issue; 1900XP attempted to boot Win XP, but failed. At 2000XP, I couldn't get POST. Now, setting the multiplier is easy enough, but I'm unsure about voltages. From what I can tell, I can only step this up to 1.65 Volts, nothing higher. There are also 2 other voltage variables that I know nothing about, so felt it best that I just leave them all alone. Simply put, do I need to adjust the voltages to achieve a higher multiplier, and how risky is this to the chip. Also, is the voltage limits a limitation of the MB?

Also, for sheer curiosity, why does OC'ing result in Windows boot errors? Is this for lack of voltage, or the CPU just freaking out.

Oh, and one last thing. What's the deal with the revision A/B thing - and is there any easy way to tell what I have?

Thanks,

Matt

Whoa, you asked about a million questions, I'll try my best:

First things first, make sure you have a nice cooling solution and your temps are relatively stable at each increase in OC.

The other voltages vary by mobo maker, but typically you can also set your Vdimm voltages, which control how much power goes to your memory. The 3rd could be many things, like AGP voltage. What does it say in your BIOS? Basically, the higher the voltage, the higher the temps. This combination of increased heat and load combine to make your system instable and causes the CPU or one of your components to freak out and crash.

Generally, higher multipliers and higher Vcore stress the CPU. Higher FSB frequencies and Vdimm voltages stress your memory and your components, along with your Northbridge chip. The limitiations in your BIOS for setting voltages are a combination of BIOS protection and lack of hardware (transisitors/potentiometers/mods) that would allow you to adjust the voltage higher. 1.65V is pretty safe for this chip ONLY if you have good cooling which keeps it in its operative range. Since the 2100+ and 2200+ operate at 1.65V, if you can keep the heat at those levels for those chips, you should be OK. Some people go much higher, but it depends how cool you can keep your chip, and if you are willing to mod your board. Memory, most peole don't go more than .30 higher than default, but again, that depends on how robust your memory is and if your components can handle higher FSB speeds.

OCing is a combination of tweaking your FSB and your multipliers, so adjusting your voltage levels are all part of the tweaking process. If you are upping your multi more, you will need to up your Vcore. If you are upping your FSB you will have to increase power to your Vdimm, and probably to your Vcore as well as it has to handle that new overall speed.

Finally, the difference between the A and B is in an extra layer (two?) in the core which improves performance. This allows the chips to run cooler and faster, while using less power. The tech jargon is in Anand's review of the 2400+.

Hope this helps,

Chiz

 

[CheapTOFU]

hm.. strange..
I got the same T'bred 1700+ from Newegg..

Stepping: RIRGA (check the stepping of ur cpu)
Any T'bred with the R stepping is a good oc'er..

If you have A stepping (ex. AIRGA), then it's an old T'bred.. it won't oc well..
but I believe ANY T'bred can be oc'ed to about 1700mhz..
mine is at 2000+ speed (1670mhz) @1.6v
I can oc it to about 1900mhz with 1.85v

Here's info about the voltage:
1700+ T'bred uses only 1.5v.. and my mobo only allows me to increase vcore to about 1.6v...

You have to close the L11 bridges for more vcore...
if you close all L11 bridges, you get 1.85v..
check here for more info..
link