C533A Owners: Is Your Slotket Holding You Back from +897MHz?

[Vrangel]

I would highly recommend 2.0 version of MSI 6905.
(I think its called "dual" since it supports dual CPU mode)

I recently put one to work with c533A on Intel se440BX-2 mobo.

Rock solid 800MHz @1.5V and cheap cooling.
Very impressive considering slockets normally require 1.6V or more even without overclocking (longer traces).

Of course Intel mobos arent very overclocker friendly.
I had to go few BIOS revisions back to get rid of the message:
"E-CPUs are not supported. System has been halted"

Anyway here it is in stock for $12

http://www.allstarshop.com/shop/product.asp?dept%5Fid=83&pid=1700&sid=5MV3HMNV75SR2HAB080205RWQUJ686L2

 

[Citadel]

Longest thread I have seen!

 

[Thorn]

Banjo, I used the MS-6905 Dual v1.1.

Sesopedalian, you'll need a Neo S370 to run a CuMine on the BM6.

 

[dandan]

thanks for all the good info here from you all.
today i ordered a c533@800 from compuwiz
to run on my old abit BM6.
dan

 

[Sesopedalian]

Thanks Killer Ape and Thorn for the info. Looks like a copper or celery can be used in both my BM6 or BX6. Now to decide on a 700e or 566. I wonder why many on-line vendors describe the 566 as PGA or PPGA and not FC-PGA and not refer to them as Celeron 2 either.

 

[Killer Ape]

Ses: If you've got 133MHz FSB tolerant HW (PC133SDRAM, 89MHz Vidcard for BX board, or a VIA Mobo) and you don't mind spending an extra ~$120 you may want to try a P!!!700. I got my hands on one to test the other day and it looked like the only thing holding it back from 933 was my PC100SDRAM and my TNT2U. Despite that, it got into Win98 @ 933 @ 1.7v, but wasn't stable (for the reasons previously mentioned). This was using:BX6r2/128MB Corsair CAS2 PC100 SDRAM/Abit Slotket!!!/Golden Orb

Again, I did this in about 1 hour so it wasn't exactly what you'd call exhaustive testing.

I did run 3D Mark 2000 and Q3A benchmarks and the P!!!700 @ 700 peformed almost identically to my C533A @ 825. You be the judge.

Here's the spec on the 700:

FPO/Batch: 7013A832
S-Code: SL45Y
Born On: 5/4/00 in Malaysia

It's also dual compatible, so I'm guessing it's a newer stepping (someone correct me if I'm wrong).

 

[Sesopedalian]

Killer, the 700 sounds really tempting, but I am leaning towards the 566 because it seems to be more bang for the buck. Also, I would have to swap motherboards from one comp to the other to get the 700 in my SC750 case with the BX6, where my BM6 currently resides. Furthermore, my ram would be suspect, along with my TNT2U at higher bus speeds. But who knows, I may change my mind again tommorrow. Both these boards are the original early models.

 

[Killer Ape]

Can't go wrong with a C533A or C566 bang-for-buck wise. As I said, my $115 C533A @ 825 was equal 3D performance-wise to the $260 P!!!700 I tested. I bought my C533A when they first came out, so I bet you can find one around $100 now. A C566 maybe about $120-130?

Good luck.

 

[Sesopedalian]

Elsewhere on this board there are reports that there is a significant performance difference between the C2 566@850 and the 700e overclocked but running at close to the same speed. Your results are more encouraging. This difference probably varies across measurement methods and applications. BTW, check the hotdeals section, you can pick up a C2566 for around $85 shipped at some places. That's what started me on all this...

 

[Killer Ape]

That is cheap, but I think there was a bad batch or two of 566s recently, so Caveat Emptor... Compuwiz1 posted on this a while ago I believe.

 

[Massa2]

Bummer Just got my C2 566 from Buy.com ($56!!!) and thought I could use my MSI 6905 v 1.1 but it wouldn't even boot! Just black screen. Guess I'll have to try an FC PGA slotket.

FYI, I have an AOpen AX6BC Pro Gold mobo.

 

[riceboi5]

I am using the c533a on MSi Master 2.3 with a bh6 at 896Mhz/1.6v stable.

Posts at 992Mhz, but doesn't go into win '98

I think my Pc100 is holding me back from 992!

 

[bonkers325]

i just found out
my abit III slotket not stable with my 700e@1015
but yet my msi master is
?

 

[compuwiz1]

Could be Kenny. The general consensus in this group is that the MSI is probably the most stable of the slotkets, for most. I sent a guy a combo with an Abit !!! and it wouldn't even post on his mobo. He and I worked back and forth all day trying this and that, so I had him send it all back to me and I retested it. I plugged it into my BX master and it booted right up. The only thing I could think of is that maybe his Asus board was not liking that slotket, so I sent it back with an MSI. Well, it booted right up for him with the MSI. :Q ???? Makes no sense, but that's how it is sometimes.

 

[Killer Ape]

Man, this thread just won't die .

Massa: Did you try the following:

1. Setting the voltage on the MSI 6905 v1.1 to 1.5 (or maybe 1.65 if you're trying for 850)?

2. Setting the FSB jumper (I think they call it an "overclocking jumper&quot to either 66 (first boot) or 100 (overclock)?

3. Flashing the BIOS? I'm not familiar with your mobo, but do you have a BIOS installed that supports CuMines? Even if you have the latest BIOS you may also have to clear the CMOS when you change processors, probably via a jumper somewhere.

I hate to say it, but it could also be a bad chip. $56 proc from Buy.com seems like almost TOO good of a deal .

 

[Killer Ape]

I really wish someone would do a new review of the Abit Slotket !!! from an overclocking standpoint. Every review I've seen ranged from positive to glowing, yet we keep seeing reports from people that it's a lousy part for overclocking above ~800MHz.

 

[Eug]

Hmm.... Well, very recently my setup has had very rare BSODs above 840 MHz on my 533A. Regardless of voltage, at 880 and 896 MHz I'd get them after days of use (including hardcore gaming) out of the blue (no pun intended). (And yes, I've tested it intensively with burn-in programs and stuff overnight with no problems up to 920 MHz.) I've been attributing it to my memory, which is 8 ns and 7.5 ns Micron, but the SPD states it should run fine CAS2 up to 110 MHz FSB. This has been with various speeds on my V3, so that could also be the problem, but I don't usually attribute BSODs to a lightly overclocked V3.

Now I'm wondering if I should go for an MSI slotket. Or maybe just up the VIO to see if it's the memory (if that'll do anything).

Eug

Shall we go for 200 messages for this thread?

 

[Killer Ape]

Eug: I've been getting infrequent and weird BSODs lately as well running my C533A @ 825, mostly in games. I've also been getting the occaisonal weird 3D artifacts, mostly decal corruptions in Half-Life (OpenGL on a TNT2U), even after updating to nVidia 5.30 drivers and patching HL to latest version. I attribute it to increased ambient temperature in my apartment mostly, but now you make me wonder if its something else.

Anyway, have you tried running the RAM at CAS3? I stepped down to CAS3 with my Corsair CAS2 PC100 when I was running at 897 and it seemed more stable. Fiddling with the RAM voltage may help as well, something I can't do on my BX6r2 (unless there's a hack/app to do this I don't know about).

200 posts or bust!

 

[Eug]

Another reason I don't think it's the video, is because I can play Unreal Tournament deathmatch online for an hour with 10 other players with absolutely no problems even at slightly higher than V3 3000 speeds. (I own a V3 2000. I usually run about 20% overclocked, but I've had the problem also (rarely) with my video card UNDERclocked.)

But I'll be sitting and surfing casually no non-flash enabled sites or just checking email and BOOOM! BSOD. Runs perfectly at 840 MHz with the V3 overclocked.

As for the RAM, the RAMs own SPD settings tell my motherboard it should run fine at CAS 2-2-2 at 110 MHz. At 112 MHz it switches to CAS 3. My 8 ns RAM is sold as CAS 2-2-2 PC-100, but technically it should be fine (at least at CAS 3) for PC-125. (1000/8=125)

I don't run CAS 3, because games run SLOWER at CAS 3 880 MHz than then do at CAS 2 840 MHz. It's not really noticeable, but the benchmarks are consistently lower at the higher CPU speed if I slow down the memory. So, it kind of defeats the point because the only place I need the speed is in games. I do need speed for encoding MP3s at 12X on the fly, but all that requires is about an 800 MHz CPU or so. The extra speed doesn't help me because I've maxed out the digital audio extraction speed of my DVD-ROM drive.

 

[Killer Ape]

That's a stumper Eug. I kind of had the reverse experience in that I would get hard-locks in UT and run fine in everything else from surfing to Q3 at 897. I attributed this to having to use D3D in UT instead of the OpenGL of Q3, but also since UT stresses the CPU more. UT became stable again once I went back to 825. I assume you're running Glide since you have a V3.

I haven't noticed a big 3D performance difference between CAS2 and CAS3 on my mobo, but then again I haven't rigorously benchmarked either.

It's truly weird that in CPU intensive apps you're stable, but surfing you BSOD. My experience has been that if its a CPU/OC problem, you usually hard-lock or get kicked back to the desktop rather than BSODing. I usually BSOD from hardware conflicts or a serious app-brainfart. Maybe its time for a fresh Windows install or Registry scrub-down. Maybe its worth $14 (US) to try a new slotket.

 

[planet]

Hi everyone, I'm new and I need just a little help in cracking the barrier that keeps me from getting the most out of my chip. Can someone help????
My problem is that with my current config, atrend mother board atc-6240v, Celeron 533mhz slot 1 riser card (brand=?), 256 megs of ram, Geforce 256 ddr, & seagate 6.4gig drive, I cannot get my chip to over clock past 542mhz. Because of the 66fsb limitations my mother board has some sort lock that keeps me from modifying this. The actual jumper on my board is jp11. I can either have it on or off, when it's on the system auto detects the fsb. When off the board then uses 100fsb. I have tried evertything but jump overthe moon and I just can't get around the limitation. I read something most recently, and I think it was here, on how set jumper on the riser card itself to over ride the lock but I'm not sure totally what to do.
IF SOMEONE WOULD BE SO SO KIND i WOULD GREATLY APPRECIATE ANY HELP ON HOW TO GET PAST THIS.

thanks )

 

[Killer Ape]

I'll ask the first question: This is a C533 or a C533A?

 

[planet]

c533

 

[planet]

I'll be getting a c566 tomorrow. I think this is one the newer generation chips?

 

[Killer Ape]

Sorry if this is too pedantic, but here goes...

If its a C533 its a .25 Katmai core Celeron. A C533A is a .18 CuMine core Celeron, which is what we've been discussing here in this thread.
Just to double check, the Katmai CPUs have large grey slugs that cover almost the entire pingrid, whereas CuMines have a small slug roughly 1/6 the size of the pingrid PCB.

Generally speaking, the .25 Celerons max-out at about 550MHz, so if yours is in fact a C533 then you have no chance of running it on a 100MHz FSB. I assume you're running it at 66 with "Turbo" enabled to hit 542. If your mobo supports a 75MHz FSB you may have a chance of reaching 600MHz, but don't count on it.

If you're looking for 800MHz you need to get a C533"A"

Hope this helps.