How many of you have tried Overclocking the new celerons

[The PIT]

These are looking at a nice juicy price what do they overclock like.

[MadCat]

I got my celery II 533 for around $120 shipped, and its been behaving nicely. I got it up to 800MHz @ 1.55 volts on my old BH6 rev 1.0. I tried to make 896MHz @ 1.7v, and it goes into windows but its not stable. I cant seem to coax any more voltage out of my motherboard. Right now its running a solid 824MHz @ 1.6v.

I recall having to bump my celery 300a to 2.3v to get 450 initially, but over time I was able to drop the voltage to 2.1v. So I figure 896MHz stable is attainable, I just need to let it burn in some more.

This thing is as good a value as my 300a was, if not more.

------------------
This Signature Space FOR SALE / RENT

[Dyre]

My friend oredered his 566 for $115 shipped on friday. I'll let you know how it does(if you remind me )

[cjolley]

There is (was?) a trick to bypassing the abit voltage limit in softmenu.

1. Up your voltage to +.2v
2. Flash your bios. (whatever's latest)
3. You should now be able to go up another +.3v

It's been a while, so your milage may vary.

chuck


------------------
ABit BF6, P3-650@910, 256mb@140cas3, 10gb IBM@7200, SB Live Value@3.0, Pioneer 104s DVD, Mitsumi CDRW@2x2x8, Acatel 1000 ADSL@1.5mb/sec, Linksys EtherFast NIC, LG 995e, USB IntelliEye,Matrox G400 MAX!!!!

[GT98]

I have a Celeron 2@566 that I just put into my old BH6. I got it up to 708 and it doesn't want to run at 100 FSB no matter what I do. Oh well.....

Scott



------------------
Abit BH6 with a P3-450@558,128mb RAM,G400 MAX,SB Live!, Optiquest V95 19in montor, Asus 40x CD-ROM, Aopen 5x DVD-ROM,HP9110i 8x4x32 CD-RW,SupraMax 56k modem, Win98 SE on Western Digital 30.7GB, Win2000 on a WD 13 GB HDD

[MadCat]

Thats why I went with the 533. 800MHz is a more realistic target then 850, and if you find youve got a particularly good processor you dont have to up the bus speed much to get more from these high-multiplier freaks.

GT, you need to up the voltage. Your BIOS should be able to, its a BH6 after all. SoftMenu ignores the voltage setting the slocket specifies when you "User Define" the voltage, so I cant see why you have any problem upping the voltage. Im running with an MSI slocket that includes voltage settings, all of which the BIOS ignores.

Oh yeah, thanks cjolley, I knew a friend who pulled that trick back with his original BX6, but I just assumed Abit would not continue to be that stupid with newer boards and BIOS, so I didnt bother trying. It worked great, but even at 1.8v this things still not stable @ 896 (but it does now correctly identify my CPU, sorta). Im not going to burn this thing up for a few lousy MHz. Ill give it another go in a few weeks when this things burned in, but for now 824 @ 1.6 is fine

------------------
This Signature Space FOR SALE / RENT

[Rags]

GT, have you made sure, that when you try 100FSB, that your AGP Clock is set to 2/3?

Rags



------------------
Partnership for an idiot free America

[Maggi]

Hi Guys,

I'm writing this on my new Celeron 566 ...

Right now it's clocked at 875MHz (103 FSB) and I was able to complete one CPU mark at 952 (112 FSB), but it get's too hot at that clock and only CPU Idle prevents me from crashing.

<FONT SIZE=+9>Woohoo ! This thing rocks !<FONT SIZE=2>

I'll write some notes and post 'em in General Hardware, because Asus told me no Cel-2 or Cumine would run on my P2B-S Rev 1.02 ...

Might take a few hours though.

Cheers,
Maggi

[The PIT]

So which one is best to go for. The 566, 600, 633,667?

[The PIT]

Maggie have you got any benchmarks?

[MadCat]

Get the 533. As you can see, Maggi is having stability problems at 875 and I cant get my system stable at 896 even with .3v above standard (and my cooling is outrageous). So that means frankly the 600 is out and the 566 is risky. But do keep in mind, some other people cant even make 800. Its not a guarantee, but the 533 @ 800 has the best probability of success, and if you feel you can squeeze more out of the processor you wont have to up the bus speed much to do so.

------------------
This Signature Space FOR SALE / RENT



[This message has been edited by MadCat (edited 04 June 2000).]

[Maggi]

Nope, MadCat ... it's rock stable @ 875 MHz !!!

I wrote it got unstable @ 952 MHz ...

Anyway, initially it didn't post at all, i.e. there was no beep upon power up.

I had to raise the VCore to 1.8V to get it running at all, maybe because my MoBo is just too old (at least according to ASUS it is too old ... )

Benchmarks:

3DMARK 2000 PROJECT FILE

PROJECT
Description:	Maggis Celeron-II 875
Comment:	Asus P2B-S Rev 1.02
Celeron 566 @ 1.8V - 875MHz
2x128MB PC100 @ 103 FSB
Millennium G400 32MB DH @ MAX clock

3DMark Version:	335
Install ID:	0xC0E05D91
Registration Key:	
Registration Name:	
Registered:	No

TEMPLATE
Display:
Type:	Internal
Width:	1024
Height:	768
Depth:	16-Bit
Buffering:	Triple
Z-Buffering:	16-Bit
Refresh Rate:	VSync Off
Texture Format:	16-Bit

Options:
Continuous Benchmark:	No
Show Title Screens:	Yes
Benchmark Run Count:	1
Continuous Demo Mode:	No
Sounds Enabled:	Yes
CPU Optimization:	Intel(R) Pentium(R) III

RESULTS
Platform:	Internal
3DMark Result:	3039	3D marks
CPU Speed:	218	CPU 3D marks
Game 1 - Helicopter - Low Detail:	60,8	FPS
Game 1 - Helicopter - Medium Detail:	41,8	FPS
Game 1 - Helicopter - High Detail:	18,7	FPS
Game 2 - Adventure - Low Detail:	59,6	FPS
Game 2 - Adventure - Medium Detail:	43,8	FPS
Game 2 - Adventure - High Detail:	28,5	FPS
Fill Rate (Single-Texturing):	269,8	MTexels/s
Fill Rate (Multi-Texturing):	268,1	MTexels/s
High Polygon Count (1 Light):	2326	KTriangles/s
High Polygon Count (4 Lights):	2015	KTriangles/s
High Polygon Count (8 Lights):	1781	KTriangles/s
8MB Texture Rendering Speed:	224,2	FPS
16MB Texture Rendering Speed:	216,3	FPS
32MB Texture Rendering Speed:	153,2	FPS
64MB Texture Rendering Speed:	93,4	FPS
Bump Mapping (Emboss, 3-pass):	99,0	FPS
Bump Mapping (Emboss, 2-pass):	126,3	FPS
Bump Mapping (Emboss, 1-pass):	225,8	FPS
Bump Mapping (Environment):	98,8	FPS

SYSTEM
Software Versions:
Windows Version	Windows 4 , Build 1998
DirectX Version	4.07.00.0716
Bios Version	Award Modular BIOS v4.51PG
Bios Date	03/03/00

Memory:
Total Physical Memory	256MB
Free Physical Memory	185MB

PROCESSOR
CPU Information:
Processor Type	Intel Pentium III
Processor Speed	875MHz
Processor Caps	SSE, MMX

Cache Memory:
L1 Cache Size	32KB
L2 Cache Size	128KB

DESKTOP
2D Display Adapter:
Name	Matrox Millennium G400 DualHead - Deutsch

Ziff Davis:

68.6 CPU Marks @ 952MHz
65.5 CPU Marks @ 875MHz

4643.326 cps average FPU Marks @ 875MHz
4521.768 cps average FPU Marks @ 850MHz
(instable @ 952MHz > failure after 2nd test, but was pretty fast )

I recommend the 566, cos it seems that those easily hit 100MHz FSB.
I got a Pabst cooler/fan combo and my CPU hovers around 50°C when giving full throttle and I bet with a little additional cooling I could reach stable 112MHz FSB posing me a bit below the GHz and my CPU costs less than 190 US-$ (379,- DM to be precise).

Go get 'em ..

To those that couldn't reach 100MHz:

Up to voltage !!!

Mine survived an accident at 2.2V and that melted a bit of the core surrounding black stuff, but hey even my BIOS thinks it's okay to run at 1.8V, i.e. no ERROR report in my powermanagement like at 1.9V.

Cheers,
Maggi

[MadCat]

Sorry Maggi, I misread your post This is looking exactly like the 300a...some of them just wouldnt make 450, no matter how much voltage you put through em. Ive already tried to help GT98, but it seems that he cant make 100MHz FSB even at 1.8v.

As for me and my crusade for stable 896MHz, that may become a reality after I let this sucker burn in.

------------------
This Signature Space FOR SALE / RENT

[Maggi]

no prob ...

did you try 1.85 yet ?

I have the ABIT SlotKET !!! and that one let's me fiddle in 0.05V steps.

[MadCat]

<font size=6>WooHoo!</font>
896MHz stable @ 1.85v! Prime95 hasnt crashed yet!
Im not likely to keep running it at this setting, but its nice to know it can handle it!

I have an MSI Master slocket Maggi, and although there are voltage settings they seem to have no effect. No matter what I set it to, SoftMenu reports the default voltage as 1.5 (now 1.7 after I used the old ABIT flash trick). Atleast I have good-ole softmenu to change the voltage
------------------
This Signature Space FOR SALE / RENT



[This message has been edited by MadCat (edited 05 June 2000).]