Intel Pentium III 1000 - RB80526PZ001256 (BX80526C1000256)

CPU Information

General information
TypeCPU / Microprocessor
FamilyIntel Pentium III
CPU part numberRB80526PZ001256 (QAN1ES, QAZ1, QEJ0, QX93ES, SL4C8, SL4MF, SL4WM, SL52R, SL5DV)
Box part numberBX80526C1000256 (SL4C8, SL4MF, SL52R, SL5B3, SL5DV, SL5FQ)
Frequency (MHz)  ? 1000
Bus speed (MHz)  ? 133
Clock multiplier  ? 7.5
Package370-pin Flip-Chip Pin Grid Array (FC-PGA)
1.95" x 1.95" (4.95 cm x 4.95 cm)
SocketSocket 370
Introduction dateMar 8, 2000
Price at introduction$990
 
Architecture / Microarchitecture
Processor coreCoppermine
Core steppingscC0 (SL4C8, SL4MF, SL4WM)
cD0 (QAZ1, QEJ0, SL52R, SL5B3, SL5DV, SL5FQ)
Manufacturing process0.18 micron
28 million transistors
Data width32 (64-bit data bus) bit
Floating Point UnitIntegrated
Level 1 cache size  ? 16 KB instruction cache
16 KB data cache
Level 2 cache size  ? Full-speed integrated 8-way set associative 256 KB
Features
  • MMX technology
  • SSE instructions
Low power features
  • AutoHALT state  ? 
  • Stop Grant state  ? 
  • Sleep state  ? 
  • Deep Sleep state  ? 
  • System Management Mode
 
Electrical/Thermal parameters
Min/Recommended/Max V core (V)1.62 / 1.7 / 1.74
1.67 / 1.75 / 1.79
1.76 / 1.76 / 1.86
Minimum/Maximum operating temperature (°C)  ? 0 - 70 (1.7V and 1.76V core)
75 (1.75V core)
Maximum power dissipation (W)  ? 32.98 (1.7V core)
35.35 (1.75V core)
 
Notes on Intel RB80526PZ001256
  • The processor is usually marked as 1000/256/133/1.7V, 1000/256/133/1.75V or 1000/256/133/1.76V, where the last number specifies processor's core voltage. If the processor is marked with RB80526PZ001256 part number then use processor specification number to identify processor's core voltage

Pictures (4)

1000/256/133/1.7V

1000 MHz
133 MHz bus
370-pin flip-chip PGA
Intel Pentium III 1000 - RB80526PZ001256 (BX80526C1000256)
1000/256/133/1.75

1000 MHz
133 MHz bus
370-pin flip-chip PGA
Intel Pentium III 1000 - RB80526PZ001256 (BX80526C1000256)
Engineering sample

1000 MHz
133 MHz bus
370-pin flip-chip PGA

Engineering sample
Intel Pentium III 1000 - RB80526PZ001256 (BX80526C1000256)
Diferent look
2006-05-09 13:06:58
Posted by: Andy

My CPU looks like this, is there any diference?
Response: Your CPU has 1.75V core voltage, higher maximum operating temperature and higher power dissipation than the pictured one.
Diferent look

Benchmarks

Tested processor
CPU ID:0686h
CPU vendor string:GenuineIntel
 
Motherboard Epox EP-693A (MS-DOS)
Dhrystone 2.1 (VAX MIPS)998.42
Doom 1.9s high detail (FPS)78.68
Doom 1.9s low detail (FPS)133.06
Linpack 100x100 (MFLOPS)388.66
Whetstone (KWIPS)549.6
 
Motherboard Epox EP-693A (Win98)
Sandra Dhrystone (MIPS)3438
Sandra MultiMedia Floating Point (it/s)10381
Sandra MultiMedia Integer (it/s)8734
Sandra Whetstone (MFLOPS)1336

CPU ID

NOTE: CPU ID information below was taken from one CPU and may include features that are not present in all different steppings of the Intel Pentium 3 1000 CPU.

Manufacturer:Intel
Family:Pentium 3
Processor Number:1000
Part number:RB80526PZ001256
S-Spec / Comment:SL4C8
Submitted by:Neon
General information
Vendor:GenuineIntel
Processor type:Original OEM Processor
CPUID signature:686
Family: 6 (06h)
Model: 8 (08h)
Stepping: 6 (06h)
TLB/Cache details:Data TLB: 4-KB Pages, 4-way set associative, 64 entries
Data TLB: 4-MB Pages, 4-way set associative, 8 entries
Instruction TLB: 4-KB Pages, 4-way set associative, 32 entries
Instruction TLB: 4-MB Pages, fully associative, 2 entries

Cache: L1 data L1 instruction L2
Size: 16 KB 16 KB 256 KB
Associativity: 4-way set
associative
4-way set
associative
8-way set
associative
Line size: 32 bytes 32 bytes 32 bytes
 
Instruction set extensionsAdditonal instructions
MMX CMOV
SSE CMPXCHG8B
  FXSAVE/FXRSTORE
  SYSENTER/SYSEXIT
 
Major featuresOther features
On-chip Floating Point Unit 36-bit page-size extensions
  Debugging extensions
  Machine check architecture
  Machine check exception
  Memory-type range registers
  Model-specific registers
  Page attribute table
  Page global extension
  Page-size extensions (4MB pages)
  Physical address extensions
  Processor serial number
  Time stamp counter
  Virtual 8086-mode enhancements

Comments (4)

Epic

2010-02-13 16:38:19
Posted by: Vitya

Top processor for s370 motherboards without tualatin support.
1,5x more faster than Celeron 950mhz/128 L2/100fsb.
10% slower than Celeron 1300/256/100 (tualatin)

Because for mpeg4 movies pentium-2 is not enough, but pentium-3 series still good after 10years as home computer for watch movies/music/internet same as pentium4 :)

For aesthetes p3-1000 is best choice.

For s370 with tualatin support better look at
Pentium III-S tualatin (server version 512L2) 1400/512/133.

Successful upgrade

2007-02-19 10:40:43
Posted by: Joe Strong

First of all I apologize for not posting in the forum.

The upgrade went successful from a Celeron 700Mhz to the above PIII chip. Of course it is recognized as 750Mhz because it's running at 100 FSB instead of 133. I could overclock but is this really wise when using the old heat sink and case fan?

Upgrading this from Celeron

2007-02-11 17:07:08
Posted by: Joe Strong

I am planning to upgrade to the chip above(SL52R) from my Celeron 700MHZ. Its on a HP Pavilion XG823. Everything seems to match up can someone tell if this will work?

Upgrading this from Celeron

Response: Plase post upgrade questions in the forum.

1312.5MHz on CopperMine core

2006-08-29 15:29:09
Posted by: Andy

Here is my Pentium III runing at 1.3GHz with homemade watercooling, the CPU stays in 30C, the bad part is that the onboard sound, vide, ethernet are not working at this FSB so I'm using a PCI sound, and network cards

1312.5MHz on CopperMine core

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