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AMD-K6-2E+/570ACZ

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First post, by Swapper

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Hi all ...

My first post here 😀

I'm building my retro box and after deep searching I've found where to buy an AMD-K6-2E+/570ACZ for 21 € plus shipping and handling

Is this a good price?

Reply 2 of 21, by Swapper

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The Serpent Rider wrote on 2020-06-07, 14:08:

Yes.

They offer me the following:

AMD-K6-IIIE+500ACR ---> 114 €
AMD-K6-IIIE+450ACR ---> 112 €

AMD-K6-2E+/570ACZ ---> 21 €
AMD-K6-2E+/550ACZ ---> 76 €
AMD-K6-2E+/533ACZ ---> 87 €
AMD-K6-2E+/500ACZ ---> 96 €

This is weird ... how is it possible that slower CPU's are more expensive?

Reply 3 of 21, by brian105

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Old stock, unupdated prices, etc.
Can I ask where you found such a high clocked 2+ for that cheap? A local store?

Presario 5284: K6-2+ 550 ACZ @ 600 2v, 256MB PC133, GeForce4 MX 440SE 64MB, MVP3, Maxtor SATA/150 PCI card, 16GB Sandisk U100 SATA SSD
2007 Desktop: Athlon 64 X2 6000+, Asus M2v-MX SE, Foxconn 7950GT 512mb, 4GB DDR2 800, Audigy 2 ZS, WinME/XP

Reply 4 of 21, by Swapper

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brian105 wrote on 2020-06-07, 17:01:

Old stock, unupdated prices, etc.
Can I ask where you found such a high clocked 2+ for that cheap? A local store?

Sorry 4 the delay. It's from a local store but I know they do not have such stock. IMHO they have found some place over the net where they buy them and resell upon request.

I'll investigate to find out their provider and keep updated here.

Reply 6 of 21, by cyclone3d

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jakethompson1 wrote on 2020-06-08, 21:37:

The K6-III+ ones despite being slower, have more cache than a K6-2+ right?

Yes.
K6-2+ has 128KB L2 cache
K6-III+ has 256KB L2 cache

Yamaha modified setupds and drivers
Yamaha XG repository
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Aopen AW744L II SB-LINK

Reply 8 of 21, by Sphere478

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dr.zeissler wrote on 2021-12-15, 06:23:

More cache = slower?

Not usually.

Sphere's PCB projects.
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Sphere’s socket 5/7 cpu collection.
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SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod
-
Tyan S1564S to S1564D single to dual processor conversion (also s1563 and s1562)

Reply 9 of 21, by Sphere478

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The reason the others are more expensive is they are harder to find basically.

Some guy is selling 570s by the thousands on ebay right now.

Sphere's PCB projects.
-
Sphere’s socket 5/7 cpu collection.
-
SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod
-
Tyan S1564S to S1564D single to dual processor conversion (also s1563 and s1562)

Reply 10 of 21, by cyclone3d

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Sphere478 wrote on 2021-12-15, 06:26:
dr.zeissler wrote on 2021-12-15, 06:23:

More cache = slower?

Not usually.

Less max Mhz stock. Highest K6-III+ is 550Mhz and that one is VERY rare.

Yamaha modified setupds and drivers
Yamaha XG repository
YMF7x4 Guide
Aopen AW744L II SB-LINK

Reply 11 of 21, by winuser_pl

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How about cpga321 vs super socket7. Are these basically the same? Also this 570 MHZ is 95MHz fsb, would my ss7 mobo support that?

PC1: Highscreen => FIC PA-2005, 64 MB EDO RAM, Pentium MMX 200, S3 Virge + Voodoo 2 8 MB
PC2: AOpen => GA-586SG, 512 MB SDRAM, AMD K6-2 400 MHz, Geforce 2 MX 400

Reply 12 of 21, by rmay635703

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winuser_pl wrote on 2021-12-15, 21:34:

How about cpga321 vs super socket7. Are these basically the same? Also this 570 MHZ is 95MHz fsb, would my ss7 mobo support that?

93,95 and 97mhz FSB was more of a gimmick

Even if it only supports 100mhz the chip will work just fine.

Many super 7’s support 95 however

Reply 13 of 21, by Sphere478

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cyclone3d wrote on 2021-12-15, 15:14:
Sphere478 wrote on 2021-12-15, 06:26:
dr.zeissler wrote on 2021-12-15, 06:23:

More cache = slower?

Not usually.

Less max Mhz stock. Highest K6-III+ is 550Mhz and that one is VERY rare.

I have one. The 550 3+ is considered faster than the 570 2+

Overclocking, yeah, wouldn’t surprise me if the 570 went further.

Be interesting to see if max 550 vs max 570 was the performance winner though.

My 550 3+ seems to crap out around 630mhz on air cooling and stock voltage.

edit:
update, the 570 can now be unlocked to a 3+
SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod
enjoy 😀 you chose wisely in your cpu choice.

Sphere's PCB projects.
-
Sphere’s socket 5/7 cpu collection.
-
SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod
-
Tyan S1564S to S1564D single to dual processor conversion (also s1563 and s1562)

Reply 14 of 21, by alpm

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Sphere478 wrote on 2021-12-15, 06:28:

The reason the others are more expensive is they are harder to find basically.

Some guy is selling 570s by the thousands on ebay right now.

Totally true. Bought 3 (they only sell in triplets) for ~60 bucks in early January.

Reply 15 of 21, by marbury

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Let's reopen a fairly old thread ... I too am looking for k6-2+ specifically and could get a 570 for "fairly" cheap from somebody...also the market seem devoid of 2+ as it is. The problem is that the 570 wants a 6x multiplier but my old SS7 board only supports up to a 5.5x multiplier. And the lowest voltage is 2.2v which I think wouldn't be a problem if the cooling can handle it?. I wonder what the implications are. Will this chip just run 10% slower then or will it not work at all? Will it explode? 😁

DOS Gaming: Biostar 8433UUD, AMD 5x86 P-75@150MHz, 64MB Ram, ViRGE 3D/DX 4MB, Aztech MM Pro 16ABI, Dos 6.22, Win 3.11
Windows gaming: Chaintech CT-5AGM2, AMD K6-2+/570ACZ@600MHz, 384MB Ram, Voodoo 3 AGP, SoundBlaster Vibra 16, Win 98

Reply 16 of 21, by Doornkaat

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marbury wrote on 2023-01-26, 10:25:

Let's reopen a fairly old thread ... I too am looking for k6-2+ specifically and could get a 570 for "fairly" cheap from somebody...also the market seem devoid of 2+ as it is. The problem is that the 570 wants a 6x multiplier but my old SS7 board only supports up to a 5.5x multiplier. And the lowest voltage is 2.2v which I think wouldn't be a problem if the cooling can handle it?. I wonder what the implications are. Will this chip just run 10% slower then or will it not work at all? Will it explode? 😁

The 2x multi setting for Pentiums is the 6x setting for K6-2/3(+) CPUs.😎
2.2V is ok with sufficient cooling.👍

Reply 17 of 21, by marbury

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nice ... thanks. Ordered it 😀 ... it's "just"57Euros which others charging 75-120 Euros ... omg!

DOS Gaming: Biostar 8433UUD, AMD 5x86 P-75@150MHz, 64MB Ram, ViRGE 3D/DX 4MB, Aztech MM Pro 16ABI, Dos 6.22, Win 3.11
Windows gaming: Chaintech CT-5AGM2, AMD K6-2+/570ACZ@600MHz, 384MB Ram, Voodoo 3 AGP, SoundBlaster Vibra 16, Win 98

Reply 19 of 21, by bloodem

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dj_pirtu wrote on 2023-01-26, 10:52:

Bought 3 of those k6-2+/570 from ebay and modded all of them to 3+ so 256KB cache. All worked fine.

Same... I've now modded 7 of these, and 6 of them worked perfectly (I've had to revert the other one to a normal "2+", because the additional cache was faulty).
I've bought one last batch of K6-2+ 570ACZ CPUs a few months ago, and I'll keep these unmodified (hopefully I can resist 😁 ).

1 x PLCC-68 / 2 x PGA132 / 5 x Skt 3 / 9 x Skt 7 / 12 x SS7 / 1 x Skt 8 / 14 x Slot 1 / 5 x Slot A
5 x Skt 370 / 8 x Skt A / 2 x Skt 478 / 2 x Skt 754 / 3 x Skt 939 / 7 x LGA775 / 1 x LGA1155
Current PC: Ryzen 7 5800X3D
Backup PC: Core i7 7700k