XP1800, is this a good overclock?

[BoomAM]

Hi,
I purchased a XP1800 about 2months ago, today, i was fiddling in the BIOS, and decided to OC it.

I can get it to XP2000 speeds (voltage of 1.825), and post/boot win/run&finish sandra Burn-in test, but when i run UT2003 or RealOne Player, they complain with an error or missing files.
When i run it at XP1900 speeds (default voltage) it runs fine.
Is this a good OC?
Is there anyway to get it to do XP2000 speeds stabiliy?

info;
XP1800, 1.7v, 11.5x multiplier, 133mhz FSB
XP1900, 1.7v, 11.5x multiplier, 140mhz FSB
XP2000, 1.825v, 11.5x multiplier, 145mhz FSB

Abit KT7A-RAID Mobo r1.02
768mb Kingston/M-Tec memory
Thermalright SLK-800 w/ YS-Tech Silent 80mm fan (20dBa, 27CFM)
3 80mm case intakes (same as CPU fan)
2 80mm case exhausts (same as CPU fan)

Thank in advance for any help given.

 

[tuan121]

get the tbred 1800 at newegg. those are great overclockers.

 

[BoomAM]

Why would i want to buy another XP1800, just becuase its baced on a new core?
I was asking if it was a good overclock, and work arounds for my problems with XP2000 speeds, not where to buy a new XP1800 chip!!!
no offence , but read the thread title & post before you answer.

 

[CraigRT]

my XP1800+ only did 2000+ speeds as well... not a good overclocker. (the first palomino core)

the newer Tbreds i guess are alot better!

 

[Mardeth]

Its not a good overclock. A very bad one actually. Im doing 1800+@2000+ and Im not glad at all.

 

[BoomAM]

Do you think that maxing the voltage will allow stable XP2000 Speeds?
The max it does is 1.85v i think, one setting above what i previously got the chip running fairly stable at.

 

[ChampionAtTufshop]

yes upping the vcore may potentially help
maybe upping the Vdimm (ram voltage)

 

[x3ro]

My Athlon XP 1800+ is running at 11.5 x 150fsb @ 1.90v........Runs stable as hell......20+ hours in prime95, temps never crept above 47*C......Definitely check your temps and make sure they're okay.....Also, your hard drive might not like the higher PCI speed either, so make sure you have a nice hard drive...

 

[KingofFah]

What stepping is the CPU?

 

[MatthewF01]

might want to take a shot at 1.85 volts vcore, as well as upping the memory voltage, and possibly relaxing the memory timings?

Also, if your board has a 1/5 pci divider that kicks in at 166mhz fsb, you should try dropping the multiplier to 10 or 10.5 and seeing if you can hit 166. although maybe its your ram thats crappin out, and if thats the case, i wouldnt expect you to hit 166.

mess with voltages and mem. timings.

 

[Duvie]

With the type of errors you are talking about at 2000+ level it may be related to ram...What are the specs and the timings set in the bios????


Also go ahead and list temps at idle and load....I am really surprised that at 1900+ level it only needed 1.7v yet only 66mhz later it needs a full 0.125v and still not stable....


Also sandra burn in is a POS program to test real stability...I don't consider you system stable at any speed if that is the basis you are stating stability to. Run prime95 at 2000+ level then run memtest86 and see if we can isolate this to memory...

 

[BoomAM]

i tryed it at 1.85 volts and the probs in UT2003 still exist but the ones in RealOne player dont.
The memory settings are set to default values, for stability.
Where can i get prime95 & memtest86? Are they a big download cos i only have 56k connection.
Cant change the ram voltage on a KT7A-RAID
Dunno the stepping to the CPU. Is there a way that i can check, that doesnt mean i have to take the HSF off? as because of the design of the mobo and my HSF being so big, i have the remove the mobo completly to take the HSF off, or i will damage the HSF.

My memory is;-
512mb PC133 Kingston
256mb PC133 M-Tec
Both have passive Thermaltake heatspreader on them for cooling.

I currently running at XP1900 speeds, 140mhz FSB & default voltage.

I dont think cooling is the problem as if you look at my system specs, my rig is practically a hovercraft. lol

 

[John2583]

I have an Asus A7N8X and Athlon 1800XP. I am just now experimenting with overclocking for the first time. I've got my core voltage set to 1.750. I set my System clock at 163MHz. I set the multiplier to 12 and I tried 12.5 too, but I don't think my CPU is unlocked because WCPUID only shows it as 11.5. WCPUID shows the family as 6,7 and model as 8,8 and the stepping as 0,0(top,bottom=standard,extended?) With those settings I get 1872.99Mhz. If I up the system clock to 165, WindowsXP Pro freezes during boot. I haven't set the memory timings manually, should I do that?

 

[zsouthboy]

Sorry to tell you dude, but MOST KT7A's weren't stable above 140 mhz fsb... consider getting a new mobo if you want to o/c more.

 

[Mustanggt]

No that not a very good overclock at all, I had Xp1600 that would overclock much higher than your 1800. I have tbred 1800 now that does 2005 mhz at 211 fsb, looks like you have great air cooling so if upping vcore does not help then you pretty much stuck at 1900 speeds. prob get more out of that 1800 with a newer mobo. good luck

 

[CraigRT]

It's about as good as you're going to get with that Setup.

KT333 or later chipset and a TBred 1800+ and you could see 2200+ speeds with ease.

I doubt that mobo will take a TBredA, my KT266A board won't even take a TBred. (some will, not mine)

 

[Ketchup]

With your setup, I would say your overclock is a bit lower than I would expect, but not too far off. If you get a new XP 1800, you will get a much better overclock. The t-bred's overclock MUCH better than the Palominos.

You really need a better fan (probably 50 cfm) if you want to overclock. AMD CPU's only overclock well when they are cooled well. Your cooler is one of the best, but doesn't do you any good if you don't have any air flowing through it.

Your motherboard may also be holding you back, as others have mentioned. If you want to find out what is currently holding you back, get a hold of an Athlon XP ulocking kit and overclock your chip by raising the multiplier only.

 

[BoomAM]

Yeh, It`d do XP2000 Speeds, but for some reason, it made UT2003 refuse to run propely, and kept crashing my RealOne Player, which i use to transfer tracks to my Rio600.
The max voltage on my Mobo is 1.9v i think, and i reacon at 2v, it`d run stable. It is the Mobo limiting my OC.
And i think that the chip is a Tbird. Is there anyway to check wo/ removing the HSF? some software prehaps?
My temps at load are 40*c, 35*c idle. Thats running at XP1900. Cooling aint the problem.

Would this cool a SLK-800 propely, i thought of it last night.
1) remove the 80mm YS-Tech Silent 4pin on HSF.
2) take off fan clips from HS
3) Attach Zalman Fan bracket onto Expansion slots screw holes
4) Put a 120mm fan on it, and have it directly above the HS
The reason, is, it`ll not only supply loads more air to the HS, but`ll also be about the same noise as the existing HSF combo. And it`ll cool the Zalman Mobo HS as well, and the thermaltake passive heat spreader on the memory. So it`ll be better all round

The 120mm fan/s that i`d consider are...and are available from my local shop. Probably the YS-Tech one
YS-TECH FD1238 120mm Fan - 4 Pin + 12-7v converter (125CFM, 40.5dBa)
Papst 4412FGL 120mm Fan (4 pin) (53.3CFM, 26dBa)

Whats the I/O voltage, its listed under the advanced chip settings in the BIOS(under manual settings), if i raised that, would that make a difference?

 

[RobsTV]

Same deal with XP1800+ here. Bad overclocker.

Ended up trading it for an XP1600+, which easily runs XP2100+ speeds at stock vcore and $6.00 HSF.

 

[specktre]

how about u unlock it and not stress the mobo and ram so much? just a thought

 

[JustStarting]

Your Lucky to get that high with a KT7A. Get a new board and whip that puppy!!

 

[Hottie]

You running @ 1.825v? Wow thats very high.
I have the 1700+ TB A with Leadtek nForce2, I haven't push it to the limit yet. But I am running 11x145(1600mhz) at stock vcore. The highest I try so far is 11x155(1700mhz) at 1.7v and stable. That is almost 2100+ speed. Maybe you can try to play around w/ the ram setting?

 

[Ketchup]

Originally posted by: Hottie
You running @ 1.825v? Wow thats very high.
I have the 1700+ TB A with Leadtek nForce2, I haven't push it to the limit yet. But I am running 11x145(1600mhz) at stock vcore. The highest I try so far is 11x155(1700mhz) at 1.7v and stable. That is almost 2100+ speed. Maybe you can try to play around w/ the ram setting?

He has a Palomino, not a Tbred. Getting a Tbred may help his overclock, but as others have said, I think the limiting factor here may be the motherboard.

BoomAM, I just saw on Pricewatch where you can get an Epox 8K3A (had one, excellent board) for $67 and 256 MB of DDR 333 for $50. That will give you a nice performance boost at default speed and should overclock much better.

 

[BoomAM]

Thanks for the heads up on the Mobo/Mem. But im not looking to upgrade my MoBo/mem at the moment, all my moneys at this time is going on a sapphire 9700pro and a hitachi 12ms "17 TFT. I`ll be upgrading my Mobo/CPU/Mem sometime around october03.
Im not even sure that the CPU is a Palomino or wether its a Tbred. Any way that i can tell without taking off the HSF?
Prehaps something in wcpuid/sandra will tell me, what though?
what about the 120mm fan thing that i suggested? would it work?